/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:56:40,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:56:40,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:56:40,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:56:40,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:56:40,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:56:40,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:56:40,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:56:40,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:56:40,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:56:40,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:56:40,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:56:40,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:56:40,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:56:40,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:56:40,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:56:40,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:56:40,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:56:40,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:56:40,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:56:40,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:56:40,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:56:40,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:56:40,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:56:40,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:56:40,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:56:40,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:56:40,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:56:40,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:56:40,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:56:40,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:56:40,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:56:40,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:56:40,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:56:40,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:56:40,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:56:40,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:56:40,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:56:40,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:56:40,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:56:40,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:56:40,753 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 [2020-09-25 10:56:40,777 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:56:40,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:56:40,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:56:40,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:56:40,779 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:56:40,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:56:40,780 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:56:40,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:56:40,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:56:40,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:56:40,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:56:40,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:56:40,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:56:40,781 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:56:40,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:56:40,781 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:56:40,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:56:40,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:56:40,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:56:40,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:56:40,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:56:40,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:56:40,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:56:40,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:56:40,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:56:40,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:56:40,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:56:40,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:56:40,784 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:56:40,784 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 10:56:41,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:56:41,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:56:41,261 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:56:41,263 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:56:41,263 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:56:41,264 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-09-25 10:56:41,351 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db8d61c9d/28a2fc1136d6400f9c4c18217bc10afb/FLAG30fd5b092 [2020-09-25 10:56:41,995 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:56:41,996 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-09-25 10:56:42,012 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db8d61c9d/28a2fc1136d6400f9c4c18217bc10afb/FLAG30fd5b092 [2020-09-25 10:56:42,249 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db8d61c9d/28a2fc1136d6400f9c4c18217bc10afb [2020-09-25 10:56:42,264 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:56:42,271 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:56:42,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:56:42,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:56:42,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:56:42,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:56:42" (1/1) ... [2020-09-25 10:56:42,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e8bb43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:42, skipping insertion in model container [2020-09-25 10:56:42,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:56:42" (1/1) ... [2020-09-25 10:56:42,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:56:42,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:56:42,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:56:42,873 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:56:42,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:56:43,001 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:56:43,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:43 WrapperNode [2020-09-25 10:56:43,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:56:43,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:56:43,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:56:43,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:56:43,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:43" (1/1) ... [2020-09-25 10:56:43,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:43" (1/1) ... [2020-09-25 10:56:43,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:43" (1/1) ... [2020-09-25 10:56:43,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:43" (1/1) ... [2020-09-25 10:56:43,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:43" (1/1) ... [2020-09-25 10:56:43,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:43" (1/1) ... [2020-09-25 10:56:43,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:43" (1/1) ... [2020-09-25 10:56:43,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:56:43,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:56:43,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:56:43,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:56:43,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:43" (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 [2020-09-25 10:56:43,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:56:43,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:56:43,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:56:43,201 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:56:43,202 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:56:43,202 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:56:43,202 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:56:43,202 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:56:43,202 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:56:43,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 10:56:43,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:56:43,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:56:43,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:56:43,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:56:43,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:56:43,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:56:43,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:56:43,204 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:56:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:56:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:56:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 10:56:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:56:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 10:56:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:56:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:56:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:56:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:56:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:56:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 10:56:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 10:56:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 10:56:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:56:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:56:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:56:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:56:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:56:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:56:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:56:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:56:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:56:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:56:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:56:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:56:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:56:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:56:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:56:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:56:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:56:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:56:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 10:56:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:56:43,211 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:56:43,211 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:56:43,211 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:56:43,211 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:56:43,211 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:56:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:56:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:56:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:56:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:56:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:56:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:56:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:56:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:56:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:56:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:56:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:56:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:56:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 10:56:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:56:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:56:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:56:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:56:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:56:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:56:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:56:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 10:56:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:56:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:56:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 10:56:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 10:56:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:56:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 10:56:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:56:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:56:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:56:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:56:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:56:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:56:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:56:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:56:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:56:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:56:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:56:44,598 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:56:44,599 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:56:44,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:56:44 BoogieIcfgContainer [2020-09-25 10:56:44,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:56:44,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:56:44,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:56:44,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:56:44,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:56:42" (1/3) ... [2020-09-25 10:56:44,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6601849a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:56:44, skipping insertion in model container [2020-09-25 10:56:44,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:43" (2/3) ... [2020-09-25 10:56:44,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6601849a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:56:44, skipping insertion in model container [2020-09-25 10:56:44,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:56:44" (3/3) ... [2020-09-25 10:56:44,616 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2020-09-25 10:56:44,629 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:56:44,642 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:56:44,665 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:56:44,700 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:56:44,700 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:56:44,700 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:56:44,700 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:56:44,701 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:56:44,701 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:56:44,701 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:56:44,701 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:56:44,733 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-25 10:56:44,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 10:56:44,752 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:56:44,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:56:44,755 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:56:44,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:56:44,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1392630044, now seen corresponding path program 1 times [2020-09-25 10:56:44,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:56:44,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905162175] [2020-09-25 10:56:44,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:56:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:45,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:45,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:47,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:50,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:50,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 10:56:50,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:56:50,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 10:56:50,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:50,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:50,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:56:50,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 10:56:50,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 10:56:50,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 10:56:50,716 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:56:50,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:56:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:50,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:51,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:51,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:56:51,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:51,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-09-25 10:56:51,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:51,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:51,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:51,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:51,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 10:56:51,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:51,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:56:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:51,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:51,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:51,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:51,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:51,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:56:51,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:51,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:51,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:51,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:51,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:51,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:51,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:56:51,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:51,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:51,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:51,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:51,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:51,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:56:51,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:51,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:51,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:51,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:51,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:51,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:51,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:56:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:51,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:51,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:51,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:51,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:51,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:56:51,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:51,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:51,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:51,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:51,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:56:51,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:51,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:56:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:51,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:51,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:51,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:51,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:51,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:56:51,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:51,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:51,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:51,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:51,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:51,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:56:51,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 10:56:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:51,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:51,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:51,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:51,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:51,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:56:51,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:51,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:51,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:51,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:51,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:56:51,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:51,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 10:56:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:51,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:51,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:51,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:51,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:51,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:56:51,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:51,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:51,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:56:51,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:51,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:56:51,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:51,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 10:56:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:51,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:51,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:51,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:51,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:51,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:56:51,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:51,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:51,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:56:51,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:56:51,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:56:51,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:51,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:56:51,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1905162175] [2020-09-25 10:56:51,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:56:51,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:56:51,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721736130] [2020-09-25 10:56:51,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:56:51,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:56:51,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:56:51,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:56:51,441 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 8 states. [2020-09-25 10:56:52,018 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:56:53,805 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:56:54,193 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:56:54,612 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:56:55,090 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:56:55,403 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:56:55,734 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:56:56,048 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:56:57,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:56:57,432 INFO L93 Difference]: Finished difference Result 655 states and 810 transitions. [2020-09-25 10:56:57,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:56:57,439 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 10:56:57,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:56:57,463 INFO L225 Difference]: With dead ends: 655 [2020-09-25 10:56:57,463 INFO L226 Difference]: Without dead ends: 454 [2020-09-25 10:56:57,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:56:57,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2020-09-25 10:56:57,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 406. [2020-09-25 10:56:57,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2020-09-25 10:56:57,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 465 transitions. [2020-09-25 10:56:57,621 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 465 transitions. Word has length 153 [2020-09-25 10:56:57,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:56:57,622 INFO L479 AbstractCegarLoop]: Abstraction has 406 states and 465 transitions. [2020-09-25 10:56:57,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:56:57,622 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 465 transitions. [2020-09-25 10:56:57,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 10:56:57,629 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:56:57,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:56:57,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:56:57,630 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:56:57,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:56:57,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1956789942, now seen corresponding path program 1 times [2020-09-25 10:56:57,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:56:57,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832560584] [2020-09-25 10:56:57,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:56:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:57,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:57,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:58,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:02,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:02,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 10:57:02,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:57:02,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 10:57:02,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:02,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:02,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:57:02,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 10:57:02,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 10:57:02,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:02,967 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:57:02,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:57:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:03,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:03,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:03,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:57:03,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:03,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 10:57:03,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:03,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:03,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:03,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:03,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:57:03,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:57:03,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:57:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:03,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:03,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:03,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:03,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:03,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:03,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:03,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:03,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:03,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:03,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:03,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:03,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:57:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:03,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:03,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:03,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:03,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:03,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:03,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:03,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:03,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:03,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:03,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:03,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:03,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:57:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:03,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:03,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:03,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:03,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:03,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:57:03,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:03,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:03,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:03,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:03,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:03,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:03,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:57:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:03,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:03,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:03,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:03,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:03,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:03,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:03,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:03,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:03,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:03,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:03,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:03,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 10:57:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:03,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:03,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:03,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:57:03,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:03,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:57:03,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:03,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:03,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:03,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:03,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:57:03,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:03,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 10:57:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:03,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:03,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:03,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:03,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:03,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:03,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:03,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:03,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:03,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:03,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:03,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:03,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 10:57:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:03,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:03,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:03,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:03,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:03,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:03,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:03,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:03,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:03,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 10:57:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:03,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:03,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:03,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:03,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:03,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:03,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:03,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:03,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:03,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:03,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:03,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:03,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:57:03,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832560584] [2020-09-25 10:57:03,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:57:03,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 10:57:03,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283506522] [2020-09-25 10:57:03,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:57:03,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:57:03,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:57:03,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:57:03,461 INFO L87 Difference]: Start difference. First operand 406 states and 465 transitions. Second operand 6 states. [2020-09-25 10:57:03,956 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:57:04,841 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:57:07,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:57:07,848 INFO L93 Difference]: Finished difference Result 1264 states and 1585 transitions. [2020-09-25 10:57:07,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 10:57:07,849 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 159 [2020-09-25 10:57:07,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:57:07,860 INFO L225 Difference]: With dead ends: 1264 [2020-09-25 10:57:07,860 INFO L226 Difference]: Without dead ends: 968 [2020-09-25 10:57:07,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:57:07,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2020-09-25 10:57:08,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 859. [2020-09-25 10:57:08,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 859 states. [2020-09-25 10:57:08,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1021 transitions. [2020-09-25 10:57:08,036 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1021 transitions. Word has length 159 [2020-09-25 10:57:08,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:57:08,037 INFO L479 AbstractCegarLoop]: Abstraction has 859 states and 1021 transitions. [2020-09-25 10:57:08,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:57:08,038 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1021 transitions. [2020-09-25 10:57:08,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 10:57:08,043 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:57:08,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:57:08,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:57:08,044 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:57:08,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:57:08,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1411260612, now seen corresponding path program 1 times [2020-09-25 10:57:08,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:57:08,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424134214] [2020-09-25 10:57:08,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:57:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:08,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:08,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:08,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:13,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:13,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-25 10:57:13,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:57:13,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 10:57:13,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:13,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:13,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:57:13,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 10:57:13,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 10:57:13,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:13,510 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:57:13,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:57:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:13,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:13,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:13,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:57:13,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:13,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-09-25 10:57:13,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:13,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:13,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:13,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:13,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 10:57:13,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:13,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:57:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:13,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:13,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:13,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:13,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:13,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:13,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:13,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:13,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:13,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:13,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:13,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:13,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:57:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:13,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:13,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:13,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:13,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:13,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:13,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:13,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:13,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:13,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:13,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 10:57:13,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:57:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:13,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:13,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:13,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:13,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:13,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:57:13,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:13,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:13,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:13,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:13,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:13,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:57:13,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:57:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:13,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:13,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:13,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:13,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:13,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:13,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:13,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:13,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:13,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:13,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:13,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:13,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 10:57:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:13,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:13,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:13,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:57:13,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:13,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:57:13,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:13,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:13,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:13,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:57:13,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:13,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:13,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 10:57:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:13,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:13,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:13,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 10:57:13,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:13,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:57:13,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:13,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:13,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:13,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 10:57:13,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:13,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:13,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:57:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:13,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:13,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:13,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:57:13,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:13,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:13,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:13,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:13,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:13,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:13,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:13,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:13,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:57:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:13,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:13,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:13,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:13,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:13,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:13,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:13,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:13,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:13,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:13,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:13,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:13,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 10:57:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:13,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:13,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:13,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:13,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:14,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:14,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:14,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:14,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:14,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:14,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:14,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:14,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 10:57:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:14,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:14,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:14,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:14,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:14,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:14,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:14,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:14,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:14,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-25 10:57:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:14,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:14,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:14,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:14,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:14,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:14,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:14,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:14,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:14,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:14,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:14,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:14,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:57:14,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424134214] [2020-09-25 10:57:14,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:57:14,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 10:57:14,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365412197] [2020-09-25 10:57:14,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:57:14,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:57:14,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:57:14,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:57:14,091 INFO L87 Difference]: Start difference. First operand 859 states and 1021 transitions. Second operand 6 states. [2020-09-25 10:57:14,754 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:57:15,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:57:15,460 INFO L93 Difference]: Finished difference Result 1402 states and 1732 transitions. [2020-09-25 10:57:15,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 10:57:15,461 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 181 [2020-09-25 10:57:15,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:57:15,467 INFO L225 Difference]: With dead ends: 1402 [2020-09-25 10:57:15,467 INFO L226 Difference]: Without dead ends: 622 [2020-09-25 10:57:15,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:57:15,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2020-09-25 10:57:15,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 592. [2020-09-25 10:57:15,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-09-25 10:57:15,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 654 transitions. [2020-09-25 10:57:15,586 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 654 transitions. Word has length 181 [2020-09-25 10:57:15,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:57:15,587 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 654 transitions. [2020-09-25 10:57:15,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:57:15,587 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 654 transitions. [2020-09-25 10:57:15,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 10:57:15,591 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:57:15,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:57:15,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:57:15,592 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:57:15,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:57:15,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1677643238, now seen corresponding path program 1 times [2020-09-25 10:57:15,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:57:15,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998945247] [2020-09-25 10:57:15,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:57:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 10:57:15,656 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 10:57:15,656 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 10:57:15,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:57:15,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:57:15 BoogieIcfgContainer [2020-09-25 10:57:15,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 10:57:15,696 INFO L168 Benchmark]: Toolchain (without parser) took 33428.68 ms. Allocated memory was 141.6 MB in the beginning and 643.8 MB in the end (delta: 502.3 MB). Free memory was 103.6 MB in the beginning and 575.5 MB in the end (delta: -471.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:15,697 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 10:57:15,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.81 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 103.0 MB in the beginning and 174.2 MB in the end (delta: -71.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:15,702 INFO L168 Benchmark]: Boogie Preprocessor took 97.38 ms. Allocated memory is still 205.5 MB. Free memory was 174.2 MB in the beginning and 169.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:15,704 INFO L168 Benchmark]: RCFGBuilder took 1505.53 ms. Allocated memory was 205.5 MB in the beginning and 235.4 MB in the end (delta: 29.9 MB). Free memory was 169.5 MB in the beginning and 171.9 MB in the end (delta: -2.4 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:15,705 INFO L168 Benchmark]: TraceAbstraction took 31084.88 ms. Allocated memory was 235.4 MB in the beginning and 643.8 MB in the end (delta: 408.4 MB). Free memory was 170.5 MB in the beginning and 575.5 MB in the end (delta: -405.0 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:15,709 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 730.81 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 103.0 MB in the beginning and 174.2 MB in the end (delta: -71.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.38 ms. Allocated memory is still 205.5 MB. Free memory was 174.2 MB in the beginning and 169.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1505.53 ms. Allocated memory was 205.5 MB in the beginning and 235.4 MB in the end (delta: 29.9 MB). Free memory was 169.5 MB in the beginning and 171.9 MB in the end (delta: -2.4 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31084.88 ms. Allocated memory was 235.4 MB in the beginning and 643.8 MB in the end (delta: 408.4 MB). Free memory was 170.5 MB in the beginning and 575.5 MB in the end (delta: -405.0 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 140]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L314] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L585] int pumpRunning = 0; [L586] int systemActive = 1; [L868] int cleanupTimeShifts = 4; [L941] int retValue_acc ; [L942] int tmp ; [L946] FCALL select_helpers() [L947] FCALL select_features() [L948] CALL, EXPR valid_product() [L859] int retValue_acc ; [L862] retValue_acc = 1 [L863] return (retValue_acc); [L948] RET, EXPR valid_product() [L948] tmp = valid_product() [L950] COND TRUE \read(tmp) [L952] FCALL setup() [L953] CALL runTest() [L935] CALL test() [L515] int splverifierCounter ; [L516] int tmp ; [L517] int tmp___0 ; [L518] int tmp___1 ; [L519] int tmp___2 ; [L522] splverifierCounter = 0 [L524] COND TRUE 1 [L526] COND TRUE splverifierCounter < 4 [L532] tmp = __VERIFIER_nondet_int() [L534] COND TRUE \read(tmp) [L536] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L536] RET waterRise() [L542] tmp___0 = __VERIFIER_nondet_int() [L544] COND FALSE !(\read(tmp___0)) [L552] tmp___2 = __VERIFIER_nondet_int() [L554] COND FALSE !(\read(tmp___2)) [L558] tmp___1 = __VERIFIER_nondet_int() [L560] COND TRUE \read(tmp___1) [L562] CALL stopSystem() [L784] COND FALSE !(\read(pumpRunning)) [L791] systemActive = 0 [L562] RET stopSystem() [L569] CALL timeShift() [L593] COND FALSE !(\read(pumpRunning)) [L600] COND FALSE !(\read(systemActive)) [L608] CALL __utac_acc__Specification3_spec__1() [L797] int tmp ; [L798] int tmp___0 ; [L799] int tmp___1 ; [L803] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L803] RET, EXPR isMethaneLevelCritical() [L803] tmp = isMethaneLevelCritical() [L805] COND FALSE !(\read(tmp)) [L809] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L809] RET, EXPR getWaterLevel() [L809] tmp___0 = getWaterLevel() [L811] COND TRUE tmp___0 == 2 [L813] CALL, EXPR isPumpRunning() [L717] int retValue_acc ; [L720] retValue_acc = pumpRunning [L721] return (retValue_acc); [L813] RET, EXPR isPumpRunning() [L813] tmp___1 = isPumpRunning() [L815] COND FALSE !(\read(tmp___1)) [L819] CALL __automaton_fail() [L140] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 636 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 11.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 746 SDtfs, 1722 SDslu, 1016 SDs, 0 SdLazy, 2233 SolverSat, 605 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=859occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 187 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.8s InterpolantComputationTime, 670 NumberOfCodeBlocks, 670 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 490 ConstructedInterpolants, 0 QuantifiedInterpolants, 214994 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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...