/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --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_spec3_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:22:42,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:22:42,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:22:42,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:22:42,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:22:42,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:22:42,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:22:42,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:22:42,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:22:42,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:22:42,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:22:42,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:22:42,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:22:42,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:22:42,215 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:22:42,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:22:42,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:22:42,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:22:42,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:22:42,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:22:42,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:22:42,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:22:42,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:22:42,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:22:42,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:22:42,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:22:42,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:22:42,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:22:42,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:22:42,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:22:42,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:22:42,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:22:42,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:22:42,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:22:42,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:22:42,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:22:42,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:22:42,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:22:42,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:22:42,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:22:42,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:22:42,243 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 21:22:42,272 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:22:42,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:22:42,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:22:42,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:22:42,274 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:22:42,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:22:42,274 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:22:42,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:22:42,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:22:42,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:22:42,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:22:42,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:22:42,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:22:42,276 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:22:42,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:22:42,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:22:42,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:22:42,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:22:42,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:22:42,277 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:22:42,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:22:42,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:22:42,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:22:42,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:22:42,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:22:42,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:22:42,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:22:42,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:22:42,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:22:42,279 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;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;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;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;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;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;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;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;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;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:22:42,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:22:42,776 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:22:42,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:22:42,783 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:22:42,783 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:22:42,785 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-09-24 21:22:42,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc45c765c/e39ed7042dc54d5db1b93d4b89d9e940/FLAG0580f018b [2020-09-24 21:22:43,636 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:22:43,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-09-24 21:22:43,654 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc45c765c/e39ed7042dc54d5db1b93d4b89d9e940/FLAG0580f018b [2020-09-24 21:22:43,817 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc45c765c/e39ed7042dc54d5db1b93d4b89d9e940 [2020-09-24 21:22:43,833 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:22:43,840 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:22:43,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:22:43,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:22:43,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:22:43,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:22:43" (1/1) ... [2020-09-24 21:22:43,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a277cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:43, skipping insertion in model container [2020-09-24 21:22:43,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:22:43" (1/1) ... [2020-09-24 21:22:43,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:22:43,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:22:44,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:22:44,413 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:22:44,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:22:44,553 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:22:44,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:44 WrapperNode [2020-09-24 21:22:44,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:22:44,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:22:44,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:22:44,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:22:44,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:44" (1/1) ... [2020-09-24 21:22:44,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:44" (1/1) ... [2020-09-24 21:22:44,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:44" (1/1) ... [2020-09-24 21:22:44,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:44" (1/1) ... [2020-09-24 21:22:44,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:44" (1/1) ... [2020-09-24 21:22:44,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:44" (1/1) ... [2020-09-24 21:22:44,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:44" (1/1) ... [2020-09-24 21:22:44,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:22:44,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:22:44,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:22:44,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:22:44,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:44" (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 21:22:44,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:22:44,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:22:44,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:22:44,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:22:44,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:22:44,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:22:44,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:22:44,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:22:44,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:22:44,745 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:22:44,745 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:22:44,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:22:44,745 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:22:44,745 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:22:44,745 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:22:44,746 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:22:44,746 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2020-09-24 21:22:44,747 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2020-09-24 21:22:44,747 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2020-09-24 21:22:44,747 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2020-09-24 21:22:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2020-09-24 21:22:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2020-09-24 21:22:44,749 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:22:44,749 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2020-09-24 21:22:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2020-09-24 21:22:44,752 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:22:44,752 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:22:44,752 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:22:44,752 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:22:44,752 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:22:44,752 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:22:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 21:22:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 21:22:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 21:22:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:22:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:22:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:22:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:22:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 21:22:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:22:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:22:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:22:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:22:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:22:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:22:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:22:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:22:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 21:22:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:22:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:22:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:22:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:22:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:22:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:22:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:22:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:22:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:22:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:22:44,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:22:44,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:22:44,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:22:44,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:22:44,757 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:22:44,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:22:44,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:22:44,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:22:44,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:22:44,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:22:44,758 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:22:44,758 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:22:44,758 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:22:44,758 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:22:44,759 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:22:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:22:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:22:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:22:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:22:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:22:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:22:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:22:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:22:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 21:22:44,761 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 21:22:44,761 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:22:44,761 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:22:44,761 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:22:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:22:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 21:22:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:22:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:22:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:22:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 21:22:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:22:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2020-09-24 21:22:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:22:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2020-09-24 21:22:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2020-09-24 21:22:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 21:22:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2020-09-24 21:22:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2020-09-24 21:22:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:22:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2020-09-24 21:22:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2020-09-24 21:22:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2020-09-24 21:22:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:22:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:22:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:22:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:22:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:22:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:22:46,152 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:22:46,153 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:22:46,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:22:46 BoogieIcfgContainer [2020-09-24 21:22:46,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:22:46,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:22:46,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:22:46,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:22:46,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:22:43" (1/3) ... [2020-09-24 21:22:46,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f41a6a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:22:46, skipping insertion in model container [2020-09-24 21:22:46,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:44" (2/3) ... [2020-09-24 21:22:46,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f41a6a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:22:46, skipping insertion in model container [2020-09-24 21:22:46,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:22:46" (3/3) ... [2020-09-24 21:22:46,174 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c [2020-09-24 21:22:46,186 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:22:46,198 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:22:46,219 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:22:46,252 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:22:46,253 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:22:46,253 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:22:46,253 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:22:46,253 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:22:46,253 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:22:46,253 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:22:46,254 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:22:46,282 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states. [2020-09-24 21:22:46,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-24 21:22:46,310 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:46,312 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:22:46,312 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:46,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:46,320 INFO L82 PathProgramCache]: Analyzing trace with hash 103979020, now seen corresponding path program 1 times [2020-09-24 21:22:46,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:46,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048866059] [2020-09-24 21:22:46,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:46,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:47,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:49,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:51,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:51,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-24 21:22:51,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:22:51,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 21:22:51,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:22:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-24 21:22:51,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-24 21:22:51,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:22:52,305 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 21:22:52,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:22:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:52,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:52,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:52,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 21:22:52,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:52,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-09-24 21:22:52,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:52,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:52,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:52,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-24 21:22:52,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:52,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 21:22:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:52,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:52,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:52,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:22:52,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:52,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:22:52,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:52,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:52,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:52,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:22:52,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:52,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 21:22:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:52,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:52,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:52,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 21:22:52,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:52,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 21:22:52,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:52,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:52,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:52,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-24 21:22:52,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:52,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:22:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:53,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:53,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:53,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:22:53,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:53,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:53,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:53,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:53,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:53,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:53,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:53,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 21:22:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:53,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:53,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:53,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:22:53,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:53,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:53,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:53,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:53,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:53,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:53,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:53,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:22:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:53,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:53,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:53,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:22:53,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:53,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:53,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:53,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:53,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:53,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:53,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:53,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 21:22:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:53,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:53,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:53,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:22:53,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:53,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:22:53,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:53,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:53,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:53,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:53,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:53,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 21:22:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:53,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:53,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:53,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:22:53,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:53,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:22:53,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:53,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:53,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:53,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:53,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:53,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 21:22:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:53,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:53,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:53,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:22:53,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:53,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:53,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:53,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:53,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:53,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:53,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:53,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 21:22:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:53,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:53,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:53,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:53,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:53,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:22:53,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:53,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:53,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:53,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:53,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:53,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 21:22:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:53,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:53,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:53,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:53,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:53,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:53,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:53,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:53,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:53,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:53,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:53,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-24 21:22:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:53,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:53,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:53,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:53,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:53,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:53,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:53,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:53,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:53,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:53,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:53,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-09-24 21:22:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:53,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:53,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:53,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:53,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:53,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:53,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:53,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:53,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:53,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:53,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:53,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-09-24 21:22:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:53,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:53,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:53,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:53,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:53,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:53,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:53,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:53,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:53,298 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-24 21:22:53,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048866059] [2020-09-24 21:22:53,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:22:53,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 21:22:53,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581619242] [2020-09-24 21:22:53,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 21:22:53,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:22:53,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 21:22:53,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:22:53,334 INFO L87 Difference]: Start difference. First operand 426 states. Second operand 6 states. [2020-09-24 21:22:54,075 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-24 21:22:58,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:22:58,649 INFO L93 Difference]: Finished difference Result 955 states and 1169 transitions. [2020-09-24 21:22:58,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 21:22:58,651 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 235 [2020-09-24 21:22:58,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:22:58,677 INFO L225 Difference]: With dead ends: 955 [2020-09-24 21:22:58,678 INFO L226 Difference]: Without dead ends: 686 [2020-09-24 21:22:58,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:22:58,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2020-09-24 21:22:58,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 588. [2020-09-24 21:22:58,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 588 states. [2020-09-24 21:22:58,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 678 transitions. [2020-09-24 21:22:58,903 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 678 transitions. Word has length 235 [2020-09-24 21:22:58,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:22:58,904 INFO L479 AbstractCegarLoop]: Abstraction has 588 states and 678 transitions. [2020-09-24 21:22:58,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 21:22:58,905 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 678 transitions. [2020-09-24 21:22:58,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-09-24 21:22:58,914 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:58,914 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:22:58,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:22:58,915 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:58,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:58,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1069443936, now seen corresponding path program 1 times [2020-09-24 21:22:58,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:58,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1074164395] [2020-09-24 21:22:58,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:59,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:59,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:03,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:03,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-09-24 21:23:03,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:23:03,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4028 [2020-09-24 21:23:03,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:03,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:23:03,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-09-24 21:23:03,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-09-24 21:23:03,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:23:03,403 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 21:23:03,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:23:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:03,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:03,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:03,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 21:23:03,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:03,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-24 21:23:03,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:03,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:03,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:03,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-24 21:23:03,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:03,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 21:23:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:03,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:03,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:03,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:23:03,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:03,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:23:03,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:03,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:03,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:03,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:23:03,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:23:03,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 21:23:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:03,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:03,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:03,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 21:23:03,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:03,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 21:23:03,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:03,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:03,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:03,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-24 21:23:03,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:03,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:23:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:03,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:03,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:03,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:23:03,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:03,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:23:03,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:03,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:03,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:03,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:03,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:03,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 21:23:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:03,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:03,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:03,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:23:03,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:03,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:23:03,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:03,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:03,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:03,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:03,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:03,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:23:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:03,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:03,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:03,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:23:03,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:03,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:23:03,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:03,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:03,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:03,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:03,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:03,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 21:23:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:03,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:03,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:03,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:23:03,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:03,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:23:03,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:03,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:03,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:03,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:03,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:03,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 21:23:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:03,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:03,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:03,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:23:03,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:03,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:23:03,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:03,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:03,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:03,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:03,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:03,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 21:23:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:03,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:03,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:03,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:23:03,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:03,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:23:03,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:03,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:03,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 21:23:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:03,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:03,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:03,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:23:03,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:03,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:23:03,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:03,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:03,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:03,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:23:03,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:03,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 21:23:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:03,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:03,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:03,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:23:03,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:03,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:23:03,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:03,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:03,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:03,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:23:03,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:03,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 21:23:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:03,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:03,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:03,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 21:23:03,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:03,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:23:03,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:03,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:03,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:03,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:23:03,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:03,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:23:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:03,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:04,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:04,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:23:04,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:04,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:23:04,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:04,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:04,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:04,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:04,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:04,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:23:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:04,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:04,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:04,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:23:04,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:04,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:23:04,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:04,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:04,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:04,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:04,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:04,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:23:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:04,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:04,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:04,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:23:04,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:04,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:23:04,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:04,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:04,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:04,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:04,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:04,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-24 21:23:04,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:04,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:04,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:04,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:23:04,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:04,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:23:04,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:04,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:04,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:04,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:23:04,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:04,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-09-24 21:23:04,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:04,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:04,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:04,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:23:04,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:04,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:23:04,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:04,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:23:04,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:04,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:23:04,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:04,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-09-24 21:23:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:04,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:04,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:04,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:23:04,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:04,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:23:04,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:04,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:04,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:23:04,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:04,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:04,180 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-24 21:23:04,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1074164395] [2020-09-24 21:23:04,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:23:04,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:23:04,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485998998] [2020-09-24 21:23:04,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:23:04,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:23:04,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:23:04,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:23:04,188 INFO L87 Difference]: Start difference. First operand 588 states and 678 transitions. Second operand 11 states. [2020-09-24 21:23:04,887 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-24 21:23:08,657 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-24 21:23:09,029 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-24 21:23:09,513 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-24 21:23:09,971 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-24 21:23:10,353 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-24 21:23:10,770 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-24 21:23:11,144 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-24 21:23:13,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:23:13,720 INFO L93 Difference]: Finished difference Result 1693 states and 2155 transitions. [2020-09-24 21:23:13,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 21:23:13,721 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 251 [2020-09-24 21:23:13,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:23:13,731 INFO L225 Difference]: With dead ends: 1693 [2020-09-24 21:23:13,732 INFO L226 Difference]: Without dead ends: 1257 [2020-09-24 21:23:13,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702 [2020-09-24 21:23:13,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2020-09-24 21:23:13,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1035. [2020-09-24 21:23:13,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2020-09-24 21:23:13,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1230 transitions. [2020-09-24 21:23:13,907 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1230 transitions. Word has length 251 [2020-09-24 21:23:13,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:23:13,908 INFO L479 AbstractCegarLoop]: Abstraction has 1035 states and 1230 transitions. [2020-09-24 21:23:13,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:23:13,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1230 transitions. [2020-09-24 21:23:13,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-09-24 21:23:13,916 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:23:13,916 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:23:13,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:23:13,917 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:23:13,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:23:13,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1820510727, now seen corresponding path program 1 times [2020-09-24 21:23:13,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:23:13,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097609985] [2020-09-24 21:23:13,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:23:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:14,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:14,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:16,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:19,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:19,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:19,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-09-24 21:23:19,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:23:19,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5170 [2020-09-24 21:23:19,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:19,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:23:19,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-24 21:23:19,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-24 21:23:19,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:19,689 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 21:23:19,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:23:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:19,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 21:23:20,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-09-24 21:23:20,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:20,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:20,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-24 21:23:20,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:20,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 21:23:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:20,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:23:20,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:23:20,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:20,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:20,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:23:20,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:20,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 21:23:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:20,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 21:23:20,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 21:23:20,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:20,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:20,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-24 21:23:20,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:20,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:23:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:20,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:23:20,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:23:20,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:20,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:20,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:20,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:20,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 21:23:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:20,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:23:20,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:23:20,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:20,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:20,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:20,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:20,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:23:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:20,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:23:20,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:23:20,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:20,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:20,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:20,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:20,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 21:23:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:20,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:23:20,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:23:20,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:20,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:20,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:20,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:20,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 21:23:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:20,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:23:20,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:23:20,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:20,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:20,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:20,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:20,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 21:23:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:20,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:23:20,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:23:20,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:20,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:20,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:20,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:20,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 21:23:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:20,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:23:20,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:23:20,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:20,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:20,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:23:20,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:20,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 21:23:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:20,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:23:20,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:23:20,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:20,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:20,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:23:20,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:20,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 21:23:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:20,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:23:20,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:23:20,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:20,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 21:23:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:20,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:20,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-24 21:23:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:20,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 21:23:20,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:23:20,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:20,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 21:23:20,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:20,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:20,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:23:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:20,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:23:20,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:23:20,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:20,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:20,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:20,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:20,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:23:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:20,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:23:20,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:23:20,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:20,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:20,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:20,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:20,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:23:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:20,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:23:20,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:23:20,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:20,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:20,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:20,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:20,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-24 21:23:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:20,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:23:20,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:23:20,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:20,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:23:20,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:20,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:20,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-24 21:23:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:20,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:23:20,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:23:20,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:20,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:23:20,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:20,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:20,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-09-24 21:23:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:20,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:20,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:20,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:23:20,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:20,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:23:20,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:20,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:20,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:23:20,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:20,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:20,745 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-24 21:23:20,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097609985] [2020-09-24 21:23:20,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:23:20,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:23:20,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648572374] [2020-09-24 21:23:20,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:23:20,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:23:20,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:23:20,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:23:20,750 INFO L87 Difference]: Start difference. First operand 1035 states and 1230 transitions. Second operand 8 states. [2020-09-24 21:23:21,417 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-24 21:23:26,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:23:26,377 INFO L93 Difference]: Finished difference Result 2543 states and 3382 transitions. [2020-09-24 21:23:26,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 21:23:26,378 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 256 [2020-09-24 21:23:26,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:23:26,390 INFO L225 Difference]: With dead ends: 2543 [2020-09-24 21:23:26,391 INFO L226 Difference]: Without dead ends: 1660 [2020-09-24 21:23:26,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2020-09-24 21:23:26,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2020-09-24 21:23:26,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1425. [2020-09-24 21:23:26,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-09-24 21:23:26,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1742 transitions. [2020-09-24 21:23:26,610 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1742 transitions. Word has length 256 [2020-09-24 21:23:26,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:23:26,611 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 1742 transitions. [2020-09-24 21:23:26,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:23:26,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1742 transitions. [2020-09-24 21:23:26,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-09-24 21:23:26,617 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:23:26,617 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:23:26,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:23:26,618 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:23:26,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:23:26,618 INFO L82 PathProgramCache]: Analyzing trace with hash -522870887, now seen corresponding path program 1 times [2020-09-24 21:23:26,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:23:26,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779071775] [2020-09-24 21:23:26,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:23:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 21:23:26,771 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 21:23:26,771 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 21:23:26,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:23:26,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:23:26 BoogieIcfgContainer [2020-09-24 21:23:26,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:23:26,822 INFO L168 Benchmark]: Toolchain (without parser) took 42986.99 ms. Allocated memory was 138.9 MB in the beginning and 825.8 MB in the end (delta: 686.8 MB). Free memory was 101.0 MB in the beginning and 757.5 MB in the end (delta: -656.5 MB). Peak memory consumption was 643.5 MB. Max. memory is 7.1 GB. [2020-09-24 21:23:26,822 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 21:23:26,824 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.79 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 100.3 MB in the beginning and 162.8 MB in the end (delta: -62.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2020-09-24 21:23:26,826 INFO L168 Benchmark]: Boogie Preprocessor took 101.77 ms. Allocated memory is still 201.3 MB. Free memory was 162.8 MB in the beginning and 158.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-24 21:23:26,827 INFO L168 Benchmark]: RCFGBuilder took 1507.52 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 158.7 MB in the beginning and 154.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 7.1 GB. [2020-09-24 21:23:26,828 INFO L168 Benchmark]: TraceAbstraction took 40653.26 ms. Allocated memory was 233.8 MB in the beginning and 825.8 MB in the end (delta: 591.9 MB). Free memory was 153.3 MB in the beginning and 757.5 MB in the end (delta: -604.1 MB). Peak memory consumption was 601.0 MB. Max. memory is 7.1 GB. [2020-09-24 21:23:26,832 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 711.79 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 100.3 MB in the beginning and 162.8 MB in the end (delta: -62.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.77 ms. Allocated memory is still 201.3 MB. Free memory was 162.8 MB in the beginning and 158.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1507.52 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 158.7 MB in the beginning and 154.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 40653.26 ms. Allocated memory was 233.8 MB in the beginning and 825.8 MB in the end (delta: 591.9 MB). Free memory was 153.3 MB in the beginning and 757.5 MB in the end (delta: -604.1 MB). Peak memory consumption was 601.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1022]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L510] int __SELECTED_FEATURE_base ; [L511] int __SELECTED_FEATURE_highWaterSensor ; [L512] int __SELECTED_FEATURE_lowWaterSensor ; [L513] int __SELECTED_FEATURE_methaneQuery ; [L514] int __SELECTED_FEATURE_methaneAlarm ; [L515] int __SELECTED_FEATURE_stopCommand ; [L516] int __SELECTED_FEATURE_startCommand ; [L517] int __GUIDSL_ROOT_PRODUCTION ; [L605] int pumpRunning = 0; [L606] int systemActive = 1; [L1027] int waterLevel = 1; [L1028] int methaneLevelCritical = 0; [L487] int retValue_acc ; [L488] int tmp ; [L492] CALL select_helpers() [L968] __GUIDSL_ROOT_PRODUCTION = 1 [L492] RET select_helpers() [L493] CALL select_features() [L953] __SELECTED_FEATURE_base = 1 [L954] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L954] RET, EXPR select_one() [L954] __SELECTED_FEATURE_highWaterSensor = select_one() [L955] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L955] RET, EXPR select_one() [L955] __SELECTED_FEATURE_lowWaterSensor = select_one() [L956] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L956] RET, EXPR select_one() [L956] __SELECTED_FEATURE_methaneQuery = select_one() [L957] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L957] RET, EXPR select_one() [L957] __SELECTED_FEATURE_methaneAlarm = select_one() [L958] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L958] RET, EXPR select_one() [L958] __SELECTED_FEATURE_stopCommand = select_one() [L959] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L959] RET, EXPR select_one() [L959] __SELECTED_FEATURE_startCommand = select_one() [L493] RET select_features() [L494] CALL, EXPR valid_product() [L973] int retValue_acc ; [L976] retValue_acc = __SELECTED_FEATURE_base [L977] return (retValue_acc); [L494] RET, EXPR valid_product() [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L498] FCALL setup() [L499] CALL runTest() [L478] CALL test() [L521] int splverifierCounter ; [L522] int tmp ; [L523] int tmp___0 ; [L524] int tmp___1 ; [L525] int tmp___2 ; [L528] splverifierCounter = 0 [L530] COND TRUE 1 [L532] COND TRUE splverifierCounter < 4 [L538] tmp = __VERIFIER_nondet_int() [L540] COND TRUE \read(tmp) [L542] CALL waterRise() [L1045] COND TRUE waterLevel < 2 [L1046] waterLevel = waterLevel + 1 [L542] RET waterRise() [L548] tmp___0 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___0)) [L558] tmp___2 = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp___2)) [L570] tmp___1 = __VERIFIER_nondet_int() [L572] COND TRUE \read(tmp___1) [L573] COND TRUE \read(__SELECTED_FEATURE_stopCommand) [L575] CALL stopSystem() [L917] COND FALSE !(\read(pumpRunning)) [L924] systemActive = 0 [L575] RET stopSystem() [L585] CALL timeShift() [L613] COND FALSE !(\read(pumpRunning)) [L620] COND FALSE !(\read(systemActive)) [L628] CALL __utac_acc__Specification3_spec__1() [L985] int tmp ; [L986] int tmp___0 ; [L987] int tmp___1 ; [L991] CALL, EXPR isMethaneLevelCritical() [L1066] int retValue_acc ; [L1069] retValue_acc = methaneLevelCritical [L1070] return (retValue_acc); [L991] RET, EXPR isMethaneLevelCritical() [L991] tmp = isMethaneLevelCritical() [L993] COND FALSE !(\read(tmp)) [L997] CALL, EXPR getWaterLevel() [L1098] int retValue_acc ; [L1101] retValue_acc = waterLevel [L1102] return (retValue_acc); [L997] RET, EXPR getWaterLevel() [L997] tmp___0 = getWaterLevel() [L999] COND TRUE tmp___0 == 2 [L1001] CALL, EXPR isPumpRunning() [L831] int retValue_acc ; [L834] retValue_acc = pumpRunning [L835] return (retValue_acc); [L1001] RET, EXPR isPumpRunning() [L1001] tmp___1 = isPumpRunning() [L1003] COND FALSE !(\read(tmp___1)) [L1007] CALL __automaton_fail() [L1022] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 48 procedures, 730 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 40.5s, OverallIterations: 4, TraceHistogramMax: 6, AutomataDifference: 20.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1061 SDtfs, 5395 SDslu, 848 SDs, 0 SdLazy, 4014 SolverSat, 2576 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 121 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1425occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 555 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 18.1s InterpolantComputationTime, 1002 NumberOfCodeBlocks, 1002 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 739 ConstructedInterpolants, 0 QuantifiedInterpolants, 441261 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 360/360 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...