/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_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:48:42,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:48:42,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:48:42,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:48:42,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:48:42,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:48:42,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:48:42,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:48:42,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:48:42,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:48:42,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:48:42,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:48:42,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:48:42,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:48:42,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:48:42,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:48:42,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:48:42,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:48:42,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:48:42,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:48:42,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:48:42,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:48:42,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:48:42,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:48:42,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:48:42,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:48:42,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:48:42,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:48:42,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:48:42,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:48:42,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:48:42,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:48:42,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:48:42,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:48:42,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:48:42,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:48:42,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:48:42,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:48:42,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:48:42,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:48:42,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:48:42,158 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 16:48:42,182 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:48:42,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:48:42,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:48:42,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:48:42,184 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:48:42,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:48:42,184 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:48:42,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:48:42,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:48:42,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:48:42,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:48:42,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:48:42,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:48:42,186 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:48:42,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:48:42,186 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:48:42,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:48:42,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:48:42,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:48:42,187 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:48:42,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:48:42,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:48:42,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:48:42,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:48:42,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:48:42,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:48:42,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:48:42,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:48:42,189 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:48:42,189 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 16:48:42,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:48:42,635 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:48:42,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:48:42,643 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:48:42,644 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:48:42,645 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product46.cil.c [2020-09-24 16:48:42,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/010ff0e0b/cedc091986434dc9b990a07c7ea7bc52/FLAG5f6b141d9 [2020-09-24 16:48:43,271 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:48:43,272 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product46.cil.c [2020-09-24 16:48:43,287 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/010ff0e0b/cedc091986434dc9b990a07c7ea7bc52/FLAG5f6b141d9 [2020-09-24 16:48:43,552 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/010ff0e0b/cedc091986434dc9b990a07c7ea7bc52 [2020-09-24 16:48:43,566 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:48:43,571 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:48:43,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:48:43,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:48:43,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:48:43,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:48:43" (1/1) ... [2020-09-24 16:48:43,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:43, skipping insertion in model container [2020-09-24 16:48:43,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:48:43" (1/1) ... [2020-09-24 16:48:43,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:48:43,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:48:44,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:48:44,117 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:48:44,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:48:44,241 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:48:44,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:44 WrapperNode [2020-09-24 16:48:44,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:48:44,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:48:44,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:48:44,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:48:44,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:44" (1/1) ... [2020-09-24 16:48:44,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:44" (1/1) ... [2020-09-24 16:48:44,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:44" (1/1) ... [2020-09-24 16:48:44,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:44" (1/1) ... [2020-09-24 16:48:44,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:44" (1/1) ... [2020-09-24 16:48:44,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:44" (1/1) ... [2020-09-24 16:48:44,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:44" (1/1) ... [2020-09-24 16:48:44,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:48:44,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:48:44,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:48:44,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:48:44,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:44" (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 16:48:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:48:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:48:44,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:48:44,431 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:48:44,432 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:48:44,432 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:48:44,432 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:48:44,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:48:44,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:48:44,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:48:44,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:48:44,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:48:44,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:48:44,434 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:48:44,434 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:48:44,435 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:48:44,435 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:48:44,435 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:48:44,436 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:48:44,436 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:48:44,436 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:48:44,436 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:48:44,436 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:48:44,437 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:48:44,437 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:48:44,438 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:48:44,438 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:48:44,438 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 16:48:44,438 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:48:44,438 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 16:48:44,439 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:48:44,439 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:48:44,439 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:48:44,439 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:48:44,439 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:48:44,439 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:48:44,440 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:48:44,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:48:44,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 16:48:44,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 16:48:44,440 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:48:44,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:48:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:48:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:48:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:48:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:48:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:48:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:48:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:48:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:48:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:48:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:48:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:48:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:48:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:48:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:48:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:48:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:48:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:48:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:48:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:48:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:48:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:48:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:48:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:48:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:48:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:48:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:48:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:48:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:48:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:48:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:48:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:48:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:48:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:48:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:48:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:48:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 16:48:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:48:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:48:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:48:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:48:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:48:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:48:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:48:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 16:48:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:48:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:48:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:48:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 16:48:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:48:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 16:48:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:48:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:48:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:48:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:48:45,627 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:48:45,628 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:48:45,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:48:45 BoogieIcfgContainer [2020-09-24 16:48:45,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:48:45,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:48:45,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:48:45,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:48:45,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:48:43" (1/3) ... [2020-09-24 16:48:45,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567df8a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:48:45, skipping insertion in model container [2020-09-24 16:48:45,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:48:44" (2/3) ... [2020-09-24 16:48:45,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567df8a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:48:45, skipping insertion in model container [2020-09-24 16:48:45,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:48:45" (3/3) ... [2020-09-24 16:48:45,660 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product46.cil.c [2020-09-24 16:48:45,673 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:48:45,688 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:48:45,712 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:48:45,760 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:48:45,760 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:48:45,760 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:48:45,760 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:48:45,760 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:48:45,761 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:48:45,762 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:48:45,762 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:48:45,810 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states. [2020-09-24 16:48:45,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 16:48:45,847 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:48:45,851 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 16:48:45,853 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:48:45,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:48:45,862 INFO L82 PathProgramCache]: Analyzing trace with hash -416095138, now seen corresponding path program 1 times [2020-09-24 16:48:45,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:48:45,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1319632541] [2020-09-24 16:48:45,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:48:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:48:46,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:46,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:48,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:48,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:49,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:50,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:42,225 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:42,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 16:49:42,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 16:49:42,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55912 [2020-09-24 16:49:42,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:42,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:49:42,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-24 16:49:42,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 16:49:42,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:49:42,718 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:49:42,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:49:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:42,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:42,848 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:42,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:49:42,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:42,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-24 16:49:42,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:42,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:42,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:42,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:42,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:49:42,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:49:42,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:42,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:42,925 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:42,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:42,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:42,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:49:42,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:42,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:42,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:42,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:42,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:49:42,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:49:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:42,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:42,931 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:42,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:42,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:42,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:49:42,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:42,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:42,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:42,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:42,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:42,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:49:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:42,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:42,940 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:42,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:42,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:42,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:49:42,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:42,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:42,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:42,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:42,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:42,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:49:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:42,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:42,946 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:42,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:42,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:42,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:49:42,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:42,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:42,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:42,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:42,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:42,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:49:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:42,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:42,964 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:42,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:49:42,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:42,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:49:42,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:42,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:42,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:42,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:42,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:42,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 16:49:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:42,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:42,972 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:42,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:42,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:42,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:49:42,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:42,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:42,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:42,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:49:42,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:42,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:49:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:42,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:42,986 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:42,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:42,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:42,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:49:42,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:42,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:49:42,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:42,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:49:42,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:43,046 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 16:49:43,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1319632541] [2020-09-24 16:49:43,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:49:43,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:49:43,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334633771] [2020-09-24 16:49:43,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:49:43,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:49:43,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:49:43,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:49:43,079 INFO L87 Difference]: Start difference. First operand 323 states. Second operand 9 states.