/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_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:47:50,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:47:50,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:47:50,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:47:50,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:47:50,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:47:50,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:47:50,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:47:50,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:47:50,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:47:50,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:47:50,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:47:50,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:47:50,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:47:50,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:47:50,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:47:50,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:47:50,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:47:50,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:47:50,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:47:50,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:47:50,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:47:50,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:47:50,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:47:50,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:47:50,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:47:50,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:47:50,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:47:50,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:47:50,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:47:50,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:47:50,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:47:50,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:47:50,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:47:50,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:47:50,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:47:50,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:47:50,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:47:50,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:47:50,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:47:50,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:47:50,246 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 16:47:50,289 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:47:50,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:47:50,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:47:50,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:47:50,291 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:47:50,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:47:50,292 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:47:50,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:47:50,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:47:50,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:47:50,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:47:50,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:47:50,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:47:50,294 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:47:50,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:47:50,295 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:47:50,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:47:50,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:47:50,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:47:50,296 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:47:50,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:47:50,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:47:50,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:47:50,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:47:50,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:47:50,297 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:47:50,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:47:50,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:47:50,297 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:47:50,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; [2020-09-24 16:47:50,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:47:50,769 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:47:50,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:47:50,776 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:47:50,776 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:47:50,777 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c [2020-09-24 16:47:50,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/699e7360c/21ebedd103bf45b8985ac0cdc42c5e73/FLAGe2d07d36a [2020-09-24 16:47:51,464 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:47:51,465 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c [2020-09-24 16:47:51,479 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/699e7360c/21ebedd103bf45b8985ac0cdc42c5e73/FLAGe2d07d36a [2020-09-24 16:47:51,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/699e7360c/21ebedd103bf45b8985ac0cdc42c5e73 [2020-09-24 16:47:51,763 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:47:51,769 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:47:51,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:47:51,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:47:51,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:47:51,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:47:51" (1/1) ... [2020-09-24 16:47:51,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f73dab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:47:51, skipping insertion in model container [2020-09-24 16:47:51,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:47:51" (1/1) ... [2020-09-24 16:47:51,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:47:51,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:47:52,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:47:52,361 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:47:52,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:47:52,481 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:47:52,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:47:52 WrapperNode [2020-09-24 16:47:52,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:47:52,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:47:52,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:47:52,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:47:52,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:47:52" (1/1) ... [2020-09-24 16:47:52,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:47:52" (1/1) ... [2020-09-24 16:47:52,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:47:52" (1/1) ... [2020-09-24 16:47:52,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:47:52" (1/1) ... [2020-09-24 16:47:52,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:47:52" (1/1) ... [2020-09-24 16:47:52,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:47:52" (1/1) ... [2020-09-24 16:47:52,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:47:52" (1/1) ... [2020-09-24 16:47:52,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:47:52,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:47:52,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:47:52,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:47:52,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:47:52" (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 16:47:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:47:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:47:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:47:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:47:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:47:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:47:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:47:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:47:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:47:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:47:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:47:52,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:47:52,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:47:52,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:47:52,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:47:52,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:47:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:47:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:47:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:47:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:47:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:47:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:47:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:47:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:47:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:47:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:47:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:47:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:47:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:47:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:47:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:47:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:47:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:47:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:47:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 16:47:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:47:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:47:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:47:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 16:47:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 16:47:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:47:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:47:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:47:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:47:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:47:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:47:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:47:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:47:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:47:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:47:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:47:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:47:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:47:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:47:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:47:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:47:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:47:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:47:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:47:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:47:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:47:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:47:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:47:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:47:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:47:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:47:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:47:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:47:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:47:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:47:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:47:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:47:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:47:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:47:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:47:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:47:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 16:47:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:47:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:47:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:47:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:47:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:47:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:47:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 16:47:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:47:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 16:47:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:47:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:47:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:47:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:47:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:47:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:47:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:47:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:47:54,073 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:47:54,073 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:47:54,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:47:54 BoogieIcfgContainer [2020-09-24 16:47:54,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:47:54,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:47:54,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:47:54,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:47:54,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:47:51" (1/3) ... [2020-09-24 16:47:54,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a11d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:47:54, skipping insertion in model container [2020-09-24 16:47:54,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:47:52" (2/3) ... [2020-09-24 16:47:54,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a11d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:47:54, skipping insertion in model container [2020-09-24 16:47:54,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:47:54" (3/3) ... [2020-09-24 16:47:54,092 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product36.cil.c [2020-09-24 16:47:54,104 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:47:54,116 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:47:54,140 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:47:54,175 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:47:54,175 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:47:54,175 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:47:54,175 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:47:54,176 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:47:54,176 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:47:54,176 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:47:54,176 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:47:54,206 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-09-24 16:47:54,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 16:47:54,225 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:47:54,226 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 16:47:54,227 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:47:54,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:47:54,236 INFO L82 PathProgramCache]: Analyzing trace with hash 581335990, now seen corresponding path program 1 times [2020-09-24 16:47:54,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:47:54,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619302007] [2020-09-24 16:47:54,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:47:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:47:54,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:47:55,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:47:56,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:47:57,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:47:58,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:21,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:45,080 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:48:45,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 16:48:45,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 16:48:45,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50432 [2020-09-24 16:48:45,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:48:45,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 16:48:45,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 16:48:45,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 16:48:45,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-24 16:48:45,543 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:48:45,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:48:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:48:45,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:45,817 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:48:45,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:48:45,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:48:45,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-24 16:48:45,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:48:45,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:48:45,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:48:45,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 16:48:45,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:48:45,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:48:45,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:48:45,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:45,889 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:48:45,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:48:45,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:48:45,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:48:45,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:48:45,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:48:45,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:48:45,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:48:45,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:48:45,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:48:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:48:45,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:45,898 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:48:45,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:48:45,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:48:45,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:48:45,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:48:45,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:48:45,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:48:45,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:48:45,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:48:45,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:48:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:48:45,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:45,911 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:48:45,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:48:45,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:48:45,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:48:45,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:48:45,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:48:45,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:48:45,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:48:45,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:48:45,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:48:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:48:45,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:45,920 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:48:45,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:48:45,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:48:45,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:48:45,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:48:45,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:48:45,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:48:45,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:48:45,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:48:45,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:48:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:48:45,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:45,949 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:48:45,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:48:45,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:48:45,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:48:45,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:48:45,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:48:45,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:48:45,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:48:45,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:48:45,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 16:48:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:48:45,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:45,958 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:48:45,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:48:45,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:48:45,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:48:45,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:48:45,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:48:45,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:48:45,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:48:45,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:48:45,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:48:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:48:45,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:48:45,987 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:48:45,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:48:45,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:48:45,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 16:48:45,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:48:45,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:48:45,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:48:45,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:48:45,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:48:46,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:48:46,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619302007] [2020-09-24 16:48:46,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:48:46,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:48:46,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320455160] [2020-09-24 16:48:46,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:48:46,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:48:46,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:48:46,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:48:46,106 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 9 states. [2020-09-24 16:48:47,019 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 189