/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_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:43:24,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:43:24,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:43:24,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:43:24,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:43:24,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:43:24,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:43:24,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:43:24,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:43:24,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:43:24,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:43:24,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:43:24,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:43:24,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:43:24,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:43:24,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:43:24,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:43:24,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:43:24,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:43:24,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:43:24,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:43:24,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:43:24,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:43:24,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:43:24,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:43:24,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:43:24,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:43:24,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:43:24,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:43:24,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:43:24,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:43:24,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:43:24,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:43:24,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:43:24,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:43:24,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:43:24,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:43:24,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:43:24,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:43:24,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:43:24,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:43:24,577 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 16:43:24,605 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:43:24,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:43:24,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:43:24,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:43:24,607 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:43:24,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:43:24,608 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:43:24,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:43:24,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:43:24,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:43:24,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:43:24,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:43:24,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:43:24,609 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:43:24,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:43:24,609 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:43:24,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:43:24,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:43:24,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:43:24,610 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:43:24,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:43:24,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:43:24,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:43:24,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:43:24,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:43:24,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:43:24,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:43:24,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:43:24,612 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:43:24,612 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 16:43:25,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:43:25,121 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:43:25,128 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:43:25,130 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:43:25,132 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:43:25,135 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product29.cil.c [2020-09-24 16:43:25,231 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b84421899/82500f5e038a4210bf0c8ececdaca24a/FLAGc1a8e39cb [2020-09-24 16:43:25,884 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:43:25,885 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product29.cil.c [2020-09-24 16:43:25,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b84421899/82500f5e038a4210bf0c8ececdaca24a/FLAGc1a8e39cb [2020-09-24 16:43:26,150 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b84421899/82500f5e038a4210bf0c8ececdaca24a [2020-09-24 16:43:26,164 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:43:26,169 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:43:26,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:43:26,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:43:26,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:43:26,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:43:26" (1/1) ... [2020-09-24 16:43:26,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729581a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:26, skipping insertion in model container [2020-09-24 16:43:26,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:43:26" (1/1) ... [2020-09-24 16:43:26,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:43:26,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:43:26,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:43:26,731 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:43:26,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:43:26,899 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:43:26,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:26 WrapperNode [2020-09-24 16:43:26,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:43:26,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:43:26,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:43:26,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:43:26,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:26" (1/1) ... [2020-09-24 16:43:26,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:26" (1/1) ... [2020-09-24 16:43:26,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:26" (1/1) ... [2020-09-24 16:43:26,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:26" (1/1) ... [2020-09-24 16:43:26,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:26" (1/1) ... [2020-09-24 16:43:26,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:26" (1/1) ... [2020-09-24 16:43:26,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:26" (1/1) ... [2020-09-24 16:43:27,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:43:27,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:43:27,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:43:27,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:43:27,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:26" (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 16:43:27,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:43:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:43:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:43:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:43:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:43:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 16:43:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:43:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 16:43:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:43:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:43:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:43:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:43:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:43:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 16:43:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:43:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:43:27,095 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:43:27,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:43:27,095 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:43:27,095 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:43:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:43:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:43:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:43:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:43:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 16:43:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:43:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:43:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:43:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:43:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:43:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:43:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:43:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:43:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:43:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:43:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:43:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:43:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 16:43:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:43:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:43:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:43:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:43:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:43:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:43:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:43:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 16:43:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:43:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:43:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:43:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:43:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:43:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 16:43:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:43:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:43:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 16:43:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 16:43:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:43:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 16:43:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:43:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:43:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:43:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:43:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:43:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:43:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:43:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:43:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:43:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:43:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:43:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:43:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:43:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:43:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:43:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:43:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:43:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:43:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:43:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:43:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:43:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:43:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:43:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:43:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:43:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:43:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:43:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:43:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:43:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:43:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:43:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:43:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:43:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:43:28,276 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:43:28,278 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:43:28,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:43:28 BoogieIcfgContainer [2020-09-24 16:43:28,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:43:28,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:43:28,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:43:28,299 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:43:28,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:43:26" (1/3) ... [2020-09-24 16:43:28,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@827742a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:43:28, skipping insertion in model container [2020-09-24 16:43:28,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:26" (2/3) ... [2020-09-24 16:43:28,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@827742a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:43:28, skipping insertion in model container [2020-09-24 16:43:28,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:43:28" (3/3) ... [2020-09-24 16:43:28,304 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product29.cil.c [2020-09-24 16:43:28,317 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:43:28,332 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:43:28,356 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:43:28,401 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:43:28,402 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:43:28,402 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:43:28,402 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:43:28,402 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:43:28,402 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:43:28,402 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:43:28,403 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:43:28,449 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states. [2020-09-24 16:43:28,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 16:43:28,485 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:43:28,487 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 16:43:28,487 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:43:28,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:43:28,496 INFO L82 PathProgramCache]: Analyzing trace with hash -992728366, now seen corresponding path program 1 times [2020-09-24 16:43:28,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:43:28,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265089647] [2020-09-24 16:43:28,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:43:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:29,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:29,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:29,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:30,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:31,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:49,782 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:43:49,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 16:43:49,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:43:49,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20877 [2020-09-24 16:43:49,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:43:49,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:43:49,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 16:43:49,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:43:49,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:43:50,162 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:43:50,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:43:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:50,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:50,290 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:43:50,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:43:50,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:43:50,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 16:43:50,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:43:50,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:43:50,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:43:50,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:43:50,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:43:50,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:43:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:50,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:50,366 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:43:50,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:43:50,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:43:50,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:43:50,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:43:50,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:43:50,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:43:50,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:43:50,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:43:50,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:43:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:50,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:50,389 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:43:50,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:43:50,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:43:50,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 16:43:50,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:43:50,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:43:50,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:43:50,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:43:50,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:43:50,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:43:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:50,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:50,401 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:43:50,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:43:50,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:43:50,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:43:50,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:43:50,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:43:50,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:43:50,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:43:50,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:43:50,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:43:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:50,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:50,409 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:43:50,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:43:50,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:43:50,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:43:50,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:43:50,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:43:50,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:43:50,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:43:50,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:43:50,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:43:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:50,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:50,416 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:43:50,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:43:50,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:43:50,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:43:50,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:43:50,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:43:50,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:43:50,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:43:50,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:43:50,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:43:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:50,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:50,426 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:43:50,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:43:50,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:43:50,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:43:50,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:43:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:43:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:43:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:43:50,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:43:50,458 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 16:43:50,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [265089647] [2020-09-24 16:43:50,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:43:50,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:43:50,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423258391] [2020-09-24 16:43:50,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:43:50,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:43:50,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:43:50,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:43:50,491 INFO L87 Difference]: Start difference. First operand 305 states. Second operand 3 states. [2020-09-24 16:43:52,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:43:52,097 INFO L93 Difference]: Finished difference Result 455 states and 546 transitions. [2020-09-24 16:43:52,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:43:52,100 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 16:43:52,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:43:52,119 INFO L225 Difference]: With dead ends: 455 [2020-09-24 16:43:52,119 INFO L226 Difference]: Without dead ends: 285 [2020-09-24 16:43:52,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:43:52,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-09-24 16:43:52,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 244. [2020-09-24 16:43:52,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-24 16:43:52,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 266 transitions. [2020-09-24 16:43:52,226 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 266 transitions. Word has length 142 [2020-09-24 16:43:52,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:43:52,227 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 266 transitions. [2020-09-24 16:43:52,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:43:52,227 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 266 transitions. [2020-09-24 16:43:52,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 16:43:52,232 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:43:52,232 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] [2020-09-24 16:43:52,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:43:52,233 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:43:52,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:43:52,233 INFO L82 PathProgramCache]: Analyzing trace with hash 724029834, now seen corresponding path program 1 times [2020-09-24 16:43:52,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:43:52,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1234192517] [2020-09-24 16:43:52,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:43:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:52,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:52,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:52,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:53,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:53,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:18,989 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:18,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 16:44:18,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:44:18,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26704 [2020-09-24 16:44:18,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:18,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:18,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 16:44:18,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-24 16:44:18,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:19,301 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:44:19,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:44:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:19,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:19,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:19,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:44:19,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:19,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-24 16:44:19,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:19,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:19,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:19,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 16:44:19,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:19,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:44:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:19,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:19,584 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:19,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:44:19,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:19,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:44:19,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:19,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:44:19,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:19,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:44:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:19,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:19,592 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:19,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:44:19,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:19,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:44:19,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:19,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:19,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:44:19,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:19,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:44:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:19,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:19,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:19,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:44:19,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:19,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:44:19,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:19,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:19,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:19,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:44:19,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:19,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:44:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:19,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:19,615 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:19,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:44:19,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:19,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:44:19,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:19,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:19,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:19,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:44:19,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:19,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:44:19,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:19,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:19,629 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:19,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:44:19,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:19,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:44:19,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:19,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:44:19,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:44:19,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:44:19,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:44:19,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 16:44:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:19,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:19,646 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:19,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:44:19,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:19,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:44:19,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:19,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:44:19,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:44:19,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:44:19,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:44:19,709 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 16:44:19,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1234192517] [2020-09-24 16:44:19,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:44:19,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:44:19,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545249300] [2020-09-24 16:44:19,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:44:19,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:44:19,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:44:19,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:44:19,716 INFO L87 Difference]: Start difference. First operand 244 states and 266 transitions. Second operand 4 states. [2020-09-24 16:44:20,311 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186