/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_spec2_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:47:58,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:47:58,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:47:58,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:47:58,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:47:58,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:47:58,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:47:58,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:47:58,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:47:58,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:47:58,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:47:58,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:47:58,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:47:58,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:47:58,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:47:58,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:47:58,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:47:58,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:47:58,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:47:58,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:47:58,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:47:58,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:47:58,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:47:58,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:47:58,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:47:58,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:47:58,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:47:58,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:47:58,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:47:58,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:47:58,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:47:58,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:47:58,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:47:58,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:47:58,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:47:58,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:47:58,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:47:58,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:47:58,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:47:58,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:47:58,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:47:58,758 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 16:47:58,810 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:47:58,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:47:58,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:47:58,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:47:58,815 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:47:58,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:47:58,815 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:47:58,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:47:58,815 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:47:58,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:47:58,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:47:58,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:47:58,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:47:58,816 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:47:58,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:47:58,818 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:47:58,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:47:58,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:47:58,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:47:58,819 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:47:58,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:47:58,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:47:58,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:47:58,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:47:58,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:47:58,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:47:58,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:47:58,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:47:58,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:47:58,821 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 16:47:59,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:47:59,272 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:47:59,276 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:47:59,278 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:47:59,279 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:47:59,281 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2020-09-24 16:47:59,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a26b74537/16d28eeb8a9c492eb70fa7cf8335648a/FLAGb2f096a7f [2020-09-24 16:47:59,992 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:47:59,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2020-09-24 16:48:00,008 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a26b74537/16d28eeb8a9c492eb70fa7cf8335648a/FLAGb2f096a7f [2020-09-24 16:48:00,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a26b74537/16d28eeb8a9c492eb70fa7cf8335648a [2020-09-24 16:48:00,240 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:48:00,246 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:48:00,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:48:00,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:48:00,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:48:00,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:48:00" (1/1) ... [2020-09-24 16:48:00,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc704b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:00, skipping insertion in model container [2020-09-24 16:48:00,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:48:00" (1/1) ... [2020-09-24 16:48:00,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:48:00,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:48:00,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:48:00,769 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:48:00,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:48:00,900 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:48:00,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:00 WrapperNode [2020-09-24 16:48:00,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:48:00,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:48:00,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:48:00,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:48:00,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:00" (1/1) ... [2020-09-24 16:48:00,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:00" (1/1) ... [2020-09-24 16:48:00,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:00" (1/1) ... [2020-09-24 16:48:00,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:00" (1/1) ... [2020-09-24 16:48:00,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:00" (1/1) ... [2020-09-24 16:48:00,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:00" (1/1) ... [2020-09-24 16:48:00,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:00" (1/1) ... [2020-09-24 16:48:00,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:48:00,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:48:00,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:48:00,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:48:00,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:00" (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 16:48:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:48:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:48:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:48:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:48:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 16:48:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 16:48:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:48:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:48:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:48:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:48:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:48:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:48:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:48:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:48:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:48:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:48:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:48:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:48:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:48:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:48:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:48:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:48:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:48:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:48:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:48:01,083 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:48:01,083 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:48:01,083 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:48:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:48:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:48:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:48:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:48:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:48:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:48:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:48:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:48:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:48:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:48:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:48:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:48:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:48:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:48:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:48:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:48:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:48:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:48:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 16:48:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 16:48:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:48:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:48:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:48:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:48:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:48:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:48:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:48:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:48:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:48:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:48:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:48:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:48:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:48:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:48:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:48:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:48:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:48:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:48:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:48:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:48:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:48:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:48:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:48:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:48:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:48:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:48:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:48:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:48:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:48:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:48:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:48:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:48:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:48:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:48:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:48:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:48:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:48:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:48:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:48:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:48:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:48:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:48:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:48:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:48:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:48:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:48:02,260 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:48:02,261 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:48:02,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:48:02 BoogieIcfgContainer [2020-09-24 16:48:02,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:48:02,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:48:02,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:48:02,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:48:02,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:48:00" (1/3) ... [2020-09-24 16:48:02,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c3e28a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:48:02, skipping insertion in model container [2020-09-24 16:48:02,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:00" (2/3) ... [2020-09-24 16:48:02,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c3e28a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:48:02, skipping insertion in model container [2020-09-24 16:48:02,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:48:02" (3/3) ... [2020-09-24 16:48:02,288 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2020-09-24 16:48:02,300 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:48:02,313 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:48:02,337 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:48:02,380 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:48:02,380 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:48:02,380 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:48:02,380 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:48:02,381 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:48:02,381 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:48:02,381 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:48:02,381 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:48:02,424 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states. [2020-09-24 16:48:02,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 16:48:02,457 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:48:02,458 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 16:48:02,459 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:48:02,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:48:02,470 INFO L82 PathProgramCache]: Analyzing trace with hash 837157569, now seen corresponding path program 1 times [2020-09-24 16:48:02,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:48:02,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514513367] [2020-09-24 16:48:02,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:48:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:48:03,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:03,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:04,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:05,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:06,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:28,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:50,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:48:50,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 16:48:50,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 16:48:50,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47734 [2020-09-24 16:48:50,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:48:50,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:48:50,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 16:48:50,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-24 16:48:50,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:48:51,117 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:48:51,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:48:51,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:48:51,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:51,460 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:48:51,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:48:51,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:48:51,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-09-24 16:48:51,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:48:51,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:48:51,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:48:51,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 16:48:51,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:48:51,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:48:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:48:51,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:51,545 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:48:51,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:48:51,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:48:51,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:48:51,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:48:51,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:48:51,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:48:51,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:48:51,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:48:51,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:48:51,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:48:51,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:51,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:48:51,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:48:51,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:48:51,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:48:51,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:48:51,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:48:51,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:48:51,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:48:51,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:48:51,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:48:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:48:51,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:51,571 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:48:51,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:48:51,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:48:51,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:48:51,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:48:51,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:48:51,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:48:51,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:48:51,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:48:51,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:48:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:48:51,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:51,583 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:48:51,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:48:51,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:48:51,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:48:51,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:48:51,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:48:51,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:48:51,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:48:51,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:48:51,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:48:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:48:51,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:51,611 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:48:51,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:48:51,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:48:51,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:48:51,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:48:51,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:48:51,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:48:51,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:48:51,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:48:51,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 16:48:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:48:51,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:51,629 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:48:51,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:48:51,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:48:51,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:48:51,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:48:51,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:48:51,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:48:51,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:48:51,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:48:51,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:48:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:48:51,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:51,694 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:48:51,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:48:51,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:48:51,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:48:51,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:48:51,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:48:51,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:48:51,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:48:51,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:48:51,758 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 16:48:51,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514513367] [2020-09-24 16:48:51,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:48:51,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:48:51,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573420190] [2020-09-24 16:48:51,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:48:51,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:48:51,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:48:51,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:48:51,804 INFO L87 Difference]: Start difference. First operand 314 states. Second operand 9 states. [2020-09-24 16:48:52,456 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:48:53,514 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:48:53,906 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:48:54,252 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:48:54,681 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 16:48:55,027 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 16:48:55,805 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:48:56,145 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:48:56,678 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:48:57,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:48:57,886 INFO L93 Difference]: Finished difference Result 655 states and 793 transitions. [2020-09-24 16:48:57,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 16:48:57,889 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 16:48:57,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:48:57,914 INFO L225 Difference]: With dead ends: 655 [2020-09-24 16:48:57,915 INFO L226 Difference]: Without dead ends: 454 [2020-09-24 16:48:57,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 16:48:57,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2020-09-24 16:48:58,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 383. [2020-09-24 16:48:58,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-09-24 16:48:58,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 424 transitions. [2020-09-24 16:48:58,068 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 424 transitions. Word has length 148 [2020-09-24 16:48:58,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:48:58,069 INFO L479 AbstractCegarLoop]: Abstraction has 383 states and 424 transitions. [2020-09-24 16:48:58,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:48:58,069 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 424 transitions. [2020-09-24 16:48:58,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 16:48:58,078 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:48:58,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:48:58,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:48:58,079 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:48:58,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:48:58,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1201169885, now seen corresponding path program 1 times [2020-09-24 16:48:58,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:48:58,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786453824] [2020-09-24 16:48:58,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:48:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat