/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:44:15,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:44:15,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:44:15,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:44:15,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:44:15,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:44:15,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:44:15,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:44:15,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:44:15,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:44:15,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:44:15,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:44:15,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:44:15,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:44:15,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:44:15,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:44:15,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:44:15,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:44:15,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:44:15,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:44:15,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:44:15,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:44:15,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:44:15,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:44:15,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:44:15,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:44:15,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:44:15,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:44:15,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:44:15,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:44:15,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:44:15,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:44:15,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:44:15,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:44:15,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:44:15,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:44:15,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:44:15,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:44:15,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:44:15,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:44:15,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:44:15,409 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 16:44:15,453 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:44:15,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:44:15,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:44:15,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:44:15,455 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:44:15,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:44:15,456 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:44:15,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:44:15,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:44:15,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:44:15,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:44:15,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:44:15,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:44:15,457 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:44:15,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:44:15,458 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:44:15,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:44:15,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:44:15,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:44:15,459 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:44:15,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:44:15,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:44:15,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:44:15,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:44:15,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:44:15,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:44:15,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:44:15,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:44:15,460 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:44:15,461 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;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;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;log-additional-information=true; [2020-09-24 16:44:15,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:44:15,925 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:44:15,930 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:44:15,932 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:44:15,933 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:44:15,935 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c [2020-09-24 16:44:16,030 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7f37c0e30/08d7c33df49e43ebbc6af8141f1c2a4a/FLAG674876cbb [2020-09-24 16:44:16,701 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:44:16,702 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c [2020-09-24 16:44:16,724 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7f37c0e30/08d7c33df49e43ebbc6af8141f1c2a4a/FLAG674876cbb [2020-09-24 16:44:16,947 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7f37c0e30/08d7c33df49e43ebbc6af8141f1c2a4a [2020-09-24 16:44:16,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:44:16,966 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:44:16,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:44:16,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:44:16,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:44:16,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:44:16" (1/1) ... [2020-09-24 16:44:16,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64fec7e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:16, skipping insertion in model container [2020-09-24 16:44:16,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:44:16" (1/1) ... [2020-09-24 16:44:16,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:44:17,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:44:17,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:44:17,529 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:44:17,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:44:17,649 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:44:17,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:17 WrapperNode [2020-09-24 16:44:17,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:44:17,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:44:17,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:44:17,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:44:17,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:17" (1/1) ... [2020-09-24 16:44:17,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:17" (1/1) ... [2020-09-24 16:44:17,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:17" (1/1) ... [2020-09-24 16:44:17,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:17" (1/1) ... [2020-09-24 16:44:17,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:17" (1/1) ... [2020-09-24 16:44:17,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:17" (1/1) ... [2020-09-24 16:44:17,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:17" (1/1) ... [2020-09-24 16:44:17,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:44:17,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:44:17,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:44:17,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:44:17,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:17" (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 16:44:17,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:44:17,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:44:17,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:44:17,858 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:44:17,858 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:44:17,858 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:44:17,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:44:17,858 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:44:17,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:44:17,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:44:17,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:44:17,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 16:44:17,860 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:44:17,860 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:44:17,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:44:17,861 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:44:17,861 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:44:17,862 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:44:17,862 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:44:17,862 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:44:17,862 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:44:17,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:44:17,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:44:17,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:44:17,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:44:17,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:44:17,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:44:17,864 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:44:17,865 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:44:17,865 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:44:17,865 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 16:44:17,865 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:44:17,865 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 16:44:17,865 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:44:17,866 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:44:17,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:44:17,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:44:17,866 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:44:17,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:44:17,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:44:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:44:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:44:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:44:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:44:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:44:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:44:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:44:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:44:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:44:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:44:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:44:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:44:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 16:44:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:44:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:44:17,870 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:44:17,870 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:44:17,870 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:44:17,870 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:44:17,870 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:44:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:44:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:44:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:44:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:44:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:44:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:44:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:44:17,872 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:44:17,872 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:44:17,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:44:17,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:44:17,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:44:17,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:44:17,874 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:44:17,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:44:17,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:44:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:44:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:44:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:44:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:44:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:44:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:44:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:44:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:44:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:44:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:44:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 16:44:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:44:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 16:44:17,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:44:17,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:44:17,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:44:19,149 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:44:19,150 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:44:19,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:44:19 BoogieIcfgContainer [2020-09-24 16:44:19,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:44:19,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:44:19,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:44:19,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:44:19,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:44:16" (1/3) ... [2020-09-24 16:44:19,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76696c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:44:19, skipping insertion in model container [2020-09-24 16:44:19,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:17" (2/3) ... [2020-09-24 16:44:19,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76696c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:44:19, skipping insertion in model container [2020-09-24 16:44:19,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:44:19" (3/3) ... [2020-09-24 16:44:19,168 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product45.cil.c [2020-09-24 16:44:19,182 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:44:19,194 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:44:19,219 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:44:19,252 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:44:19,252 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:44:19,252 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:44:19,252 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:44:19,253 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:44:19,253 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:44:19,253 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:44:19,253 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:44:19,282 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-24 16:44:19,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 16:44:19,302 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:44:19,304 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:44:19,304 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:44:19,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:44:19,313 INFO L82 PathProgramCache]: Analyzing trace with hash 2110022022, now seen corresponding path program 1 times [2020-09-24 16:44:19,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:44:19,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755662903] [2020-09-24 16:44:19,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:44:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:19,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:20,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:20,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:21,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:21,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:39,824 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:39,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 16:44:39,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:44:39,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20157 [2020-09-24 16:44:39,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:39,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 16:44:39,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 16:44:39,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 16:44:39,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 16:44:40,481 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:44:40,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:44:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:40,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:40,865 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:40,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:44:40,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:40,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-09-24 16:44:40,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:40,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:40,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:40,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 16:44:40,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:44:41,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:44:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:41,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:41,038 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:41,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:44:41,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:41,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 16:44:41,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:41,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:44:41,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:44:41,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:44:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:41,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:41,058 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:41,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:44:41,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:41,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:44:41,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:41,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:41,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:41,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:44:41,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:44:41,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:44:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:41,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:41,081 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:41,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:44:41,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:41,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 16:44:41,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:41,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:44:41,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:44:41,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:44:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:41,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:41,138 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:41,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:44:41,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:41,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 16:44:41,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:41,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:41,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:41,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:44:41,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:41,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:44:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:41,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:41,151 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:41,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:44:41,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:41,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:44:41,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:41,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:41,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:41,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:44:41,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:41,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:44:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:41,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:41,169 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:41,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:44:41,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:41,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:44:41,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:41,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:44:41,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:41,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:44:41,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:41,304 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 16:44:41,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755662903] [2020-09-24 16:44:41,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:44:41,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 16:44:41,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892332858] [2020-09-24 16:44:41,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:44:41,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:44:41,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:44:41,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:44:41,357 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 8 states. [2020-09-24 16:44:42,318 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:44:43,767 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-24 16:44:44,393 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 16:44:44,725 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:44:45,071 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:44:45,387 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:44:46,429 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:44:46,773 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:44:47,156 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:44:48,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:44:48,544 INFO L93 Difference]: Finished difference Result 617 states and 786 transitions. [2020-09-24 16:44:48,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 16:44:48,546 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 16:44:48,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:44:48,568 INFO L225 Difference]: With dead ends: 617 [2020-09-24 16:44:48,568 INFO L226 Difference]: Without dead ends: 418 [2020-09-24 16:44:48,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-09-24 16:44:48,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-09-24 16:44:48,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 361. [2020-09-24 16:44:48,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-09-24 16:44:48,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 410 transitions. [2020-09-24 16:44:48,734 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 410 transitions. Word has length 142 [2020-09-24 16:44:48,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:44:48,736 INFO L479 AbstractCegarLoop]: Abstraction has 361 states and 410 transitions. [2020-09-24 16:44:48,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 16:44:48,736 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 410 transitions. [2020-09-24 16:44:48,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-09-24 16:44:48,742 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:44:48,742 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:44:48,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:44:48,743 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:44:48,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:44:48,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1126858538, now seen corresponding path program 1 times [2020-09-24 16:44:48,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:44:48,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85079568] [2020-09-24 16:44:48,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:44:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:48,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:49,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:49,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:49,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:51,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:51,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:52,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking...