/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=0.4 --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_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:11:56,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:11:56,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:11:57,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:11:57,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:11:57,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:11:57,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:11:57,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:11:57,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:11:57,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:11:57,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:11:57,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:11:57,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:11:57,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:11:57,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:11:57,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:11:57,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:11:57,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:11:57,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:11:57,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:11:57,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:11:57,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:11:57,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:11:57,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:11:57,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:11:57,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:11:57,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:11:57,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:11:57,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:11:57,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:11:57,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:11:57,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:11:57,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:11:57,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:11:57,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:11:57,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:11:57,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:11:57,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:11:57,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:11:57,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:11:57,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:11:57,087 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 13:11:57,149 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:11:57,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:11:57,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:11:57,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:11:57,151 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:11:57,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:11:57,152 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:11:57,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:11:57,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:11:57,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:11:57,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:11:57,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:11:57,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:11:57,153 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:11:57,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:11:57,155 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:11:57,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:11:57,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:11:57,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:11:57,156 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:11:57,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:11:57,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:11:57,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:11:57,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:11:57,157 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:11:57,157 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:11:57,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:11:57,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:11:57,158 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:11:57,158 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 13:11:57,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:11:57,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:11:57,698 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:11:57,700 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:11:57,700 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:11:57,701 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-09-25 13:11:57,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dbf35c02e/a3ec188b35364f0889b079d94389a9c8/FLAG670fab367 [2020-09-25 13:11:58,388 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:11:58,389 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-09-25 13:11:58,403 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dbf35c02e/a3ec188b35364f0889b079d94389a9c8/FLAG670fab367 [2020-09-25 13:11:58,673 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dbf35c02e/a3ec188b35364f0889b079d94389a9c8 [2020-09-25 13:11:58,686 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:11:58,693 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:11:58,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:11:58,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:11:58,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:11:58,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:11:58" (1/1) ... [2020-09-25 13:11:58,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c53af82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:58, skipping insertion in model container [2020-09-25 13:11:58,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:11:58" (1/1) ... [2020-09-25 13:11:58,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:11:58,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:11:59,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:11:59,196 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:11:59,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:11:59,467 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:11:59,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:59 WrapperNode [2020-09-25 13:11:59,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:11:59,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:11:59,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:11:59,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:11:59,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:59" (1/1) ... [2020-09-25 13:11:59,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:59" (1/1) ... [2020-09-25 13:11:59,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:59" (1/1) ... [2020-09-25 13:11:59,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:59" (1/1) ... [2020-09-25 13:11:59,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:59" (1/1) ... [2020-09-25 13:11:59,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:59" (1/1) ... [2020-09-25 13:11:59,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:59" (1/1) ... [2020-09-25 13:11:59,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:11:59,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:11:59,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:11:59,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:11:59,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:59" (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 13:11:59,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:11:59,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:11:59,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:11:59,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:11:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:11:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:11:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:11:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:11:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:11:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:11:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:11:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:11:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:11:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:11:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:11:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:11:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:11:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:11:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:11:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:11:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:11:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:11:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 13:11:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:11:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 13:11:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:11:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:11:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:11:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:11:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:11:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 13:11:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 13:11:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:11:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:11:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:11:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:11:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:11:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:11:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 13:11:59,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 13:11:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:11:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:11:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:11:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:11:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:11:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:11:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:11:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:11:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:11:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:11:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:11:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:11:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:11:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:11:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:11:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:11:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:11:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:11:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:11:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:11:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:11:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:11:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:11:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:11:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:11:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:11:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:11:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:11:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:11:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:11:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:11:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:11:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:11:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:11:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:11:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 13:11:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:11:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:11:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:11:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 13:11:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:11:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:11:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:11:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 13:11:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:11:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:11:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 13:11:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 13:11:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:11:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 13:11:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:11:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:11:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:11:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:12:00,988 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:12:00,988 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:12:00,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:12:00 BoogieIcfgContainer [2020-09-25 13:12:00,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:12:00,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:12:00,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:12:01,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:12:01,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:11:58" (1/3) ... [2020-09-25 13:12:01,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a117d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:12:01, skipping insertion in model container [2020-09-25 13:12:01,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:59" (2/3) ... [2020-09-25 13:12:01,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a117d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:12:01, skipping insertion in model container [2020-09-25 13:12:01,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:12:00" (3/3) ... [2020-09-25 13:12:01,005 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2020-09-25 13:12:01,017 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:12:01,028 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:12:01,051 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:12:01,086 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:12:01,086 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:12:01,086 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:12:01,086 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:12:01,086 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:12:01,087 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:12:01,087 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:12:01,087 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:12:01,118 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states. [2020-09-25 13:12:01,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 13:12:01,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:12:01,139 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 13:12:01,139 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:12:01,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:12:01,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1612013966, now seen corresponding path program 1 times [2020-09-25 13:12:01,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:12:01,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2032845199] [2020-09-25 13:12:01,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:12:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:01,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:01,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:03,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:06,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:06,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:12:06,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:12:06,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 13:12:06,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:06,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:06,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:12:06,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:12:06,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 13:12:06,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 31 [2020-09-25 13:12:06,955 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:12:06,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:12:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:07,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:07,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:07,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:12:07,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:07,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-09-25 13:12:07,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:07,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:07,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:07,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:07,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:12:07,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:07,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:12:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:07,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:07,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:07,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:07,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:07,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:12:07,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:07,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:07,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:07,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:07,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:07,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:07,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:12:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:07,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:07,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:07,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:07,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:07,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:12:07,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:07,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:07,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:07,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:07,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:07,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:07,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:12:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:07,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:07,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:07,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:07,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:07,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:12:07,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:07,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:07,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:07,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:07,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:12:07,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:07,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:12:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:07,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:07,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:07,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:07,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:07,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:12:07,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:07,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:07,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:07,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:07,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:07,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:07,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 13:12:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:07,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:07,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:07,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:07,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:07,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:07,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:07,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:07,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:07,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:12:07,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:07,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:07,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 13:12:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:07,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:07,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:07,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:07,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:07,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:07,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:07,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:07,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:07,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:12:07,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:07,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:07,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 13:12:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:07,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:07,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:07,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:07,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:07,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:07,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:07,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:07,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:07,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:12:07,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:07,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:07,475 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 13:12:07,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2032845199] [2020-09-25 13:12:07,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:12:07,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:12:07,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855104139] [2020-09-25 13:12:07,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:12:07,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:12:07,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:12:07,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:12:07,510 INFO L87 Difference]: Start difference. First operand 327 states. Second operand 4 states. [2020-09-25 13:12:08,158 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:12:10,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:12:10,784 INFO L93 Difference]: Finished difference Result 723 states and 878 transitions. [2020-09-25 13:12:10,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:12:10,787 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-25 13:12:10,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:12:10,809 INFO L225 Difference]: With dead ends: 723 [2020-09-25 13:12:10,809 INFO L226 Difference]: Without dead ends: 507 [2020-09-25 13:12:10,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:12:10,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-09-25 13:12:10,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 436. [2020-09-25 13:12:10,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2020-09-25 13:12:10,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 491 transitions. [2020-09-25 13:12:10,981 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 491 transitions. Word has length 153 [2020-09-25 13:12:10,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:12:10,982 INFO L479 AbstractCegarLoop]: Abstraction has 436 states and 491 transitions. [2020-09-25 13:12:10,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:12:10,983 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 491 transitions. [2020-09-25 13:12:10,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 13:12:10,989 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:12:10,990 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] [2020-09-25 13:12:10,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:12:10,990 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:12:10,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:12:10,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1429121605, now seen corresponding path program 1 times [2020-09-25 13:12:10,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:12:10,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474828465] [2020-09-25 13:12:10,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:12:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:11,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:11,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:11,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:11,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:15,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:16,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:16,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 13:12:16,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:12:16,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 13:12:16,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:16,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:16,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:12:16,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 13:12:16,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 13:12:16,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:16,377 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:12:16,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:12:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:16,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:16,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:16,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:12:16,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:16,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-25 13:12:16,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:16,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:16,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:16,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:16,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:12:16,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:16,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:12:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:16,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:16,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:16,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:16,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:16,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:16,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:16,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:16,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:16,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:16,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:16,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:16,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:12:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:16,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:16,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:16,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:16,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:16,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:12:16,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:16,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:16,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:16,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:16,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:16,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:16,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:12:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:16,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:16,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:16,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:16,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:16,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:12:16,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:16,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:16,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:16,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:16,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:12:16,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:16,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:12:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:16,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:16,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:16,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:16,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:16,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:16,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:16,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:16,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:16,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:16,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:16,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:16,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:12:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:16,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:16,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:16,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:16,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:12:16,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:12:16,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:12:16,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:16,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:16,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:12:16,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:12:16,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:12:16,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:16,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:12:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:16,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:16,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:16,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:12:16,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:16,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:12:16,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:16,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:16,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:12:16,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:12:16,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:12:16,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:16,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:12:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:16,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:16,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:16,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:16,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:16,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:16,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:16,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:16,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:16,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:16,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:16,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:16,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 13:12:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:16,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:16,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:16,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:16,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:16,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:16,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:16,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:16,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:16,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:12:16,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:16,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:16,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 13:12:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:16,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:16,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:16,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:16,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:16,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:16,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:16,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:16,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:16,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:12:16,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:16,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:16,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 13:12:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:16,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:16,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:16,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:16,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:16,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:12:16,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:16,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:16,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:16,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:12:16,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:16,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:16,948 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 13:12:16,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474828465] [2020-09-25 13:12:16,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:12:16,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 13:12:16,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861607581] [2020-09-25 13:12:16,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:12:16,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:12:16,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:12:16,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:12:16,953 INFO L87 Difference]: Start difference. First operand 436 states and 491 transitions. Second operand 6 states. [2020-09-25 13:12:17,445 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:12:19,260 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:12:20,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:12:20,858 INFO L93 Difference]: Finished difference Result 1220 states and 1504 transitions. [2020-09-25 13:12:20,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 13:12:20,858 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 13:12:20,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:12:20,868 INFO L225 Difference]: With dead ends: 1220 [2020-09-25 13:12:20,868 INFO L226 Difference]: Without dead ends: 894 [2020-09-25 13:12:20,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:12:20,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-09-25 13:12:20,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 751. [2020-09-25 13:12:20,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2020-09-25 13:12:20,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 857 transitions. [2020-09-25 13:12:20,987 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 857 transitions. Word has length 167 [2020-09-25 13:12:20,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:12:20,988 INFO L479 AbstractCegarLoop]: Abstraction has 751 states and 857 transitions. [2020-09-25 13:12:20,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:12:20,988 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 857 transitions. [2020-09-25 13:12:20,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 13:12:20,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:12:20,992 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] [2020-09-25 13:12:20,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:12:20,992 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:12:20,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:12:20,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1334837787, now seen corresponding path program 1 times [2020-09-25 13:12:20,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:12:20,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874409024] [2020-09-25 13:12:20,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:12:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:21,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:22,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:22,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 13:12:22,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:22,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1913 [2020-09-25 13:12:22,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:22,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:22,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 13:12:22,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 13:12:22,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 13:12:22,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:23,320 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:12:23,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:12:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:23,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:23,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:23,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:12:23,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:23,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-25 13:12:23,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:23,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:23,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:23,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:23,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:12:23,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:23,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:12:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:23,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:23,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:23,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:23,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:23,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:23,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:23,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:23,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:23,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:23,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:23,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:23,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:12:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:23,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:23,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:23,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:23,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:23,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:23,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:23,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:23,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:23,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:23,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:12:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:23,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:23,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:23,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:23,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:23,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:12:23,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:23,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:23,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:23,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:23,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:12:23,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:12:23,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:12:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:23,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:23,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:23,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:23,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:23,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:23,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:23,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:23,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:23,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:23,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:23,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:23,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 13:12:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:23,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:23,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:23,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:12:23,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:23,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:23,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:23,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:23,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:23,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:23,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:12:23,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:23,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 13:12:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:23,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:23,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:23,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:23,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:23,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:23,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:23,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:23,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:23,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:23,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:12:23,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:12:23,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 13:12:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:23,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:23,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:23,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:23,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:23,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:12:23,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:23,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:23,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:12:23,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:23,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:12:23,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:12:23,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 13:12:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:23,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:23,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:23,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:23,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:23,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:12:23,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:23,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:23,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:23,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:12:23,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:23,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:23,813 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 13:12:23,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874409024] [2020-09-25 13:12:23,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:12:23,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:12:23,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291403525] [2020-09-25 13:12:23,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:12:23,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:12:23,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:12:23,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:12:23,816 INFO L87 Difference]: Start difference. First operand 751 states and 857 transitions. Second operand 10 states. [2020-09-25 13:12:24,351 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:12:26,082 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:12:26,447 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:12:26,819 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:12:27,149 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:12:27,493 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:12:27,822 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:12:28,143 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:12:28,633 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:12:30,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:12:30,848 INFO L93 Difference]: Finished difference Result 2101 states and 2668 transitions. [2020-09-25 13:12:30,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:12:30,849 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-25 13:12:30,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:12:30,860 INFO L225 Difference]: With dead ends: 2101 [2020-09-25 13:12:30,860 INFO L226 Difference]: Without dead ends: 1380 [2020-09-25 13:12:30,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 13:12:30,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-09-25 13:12:31,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1277. [2020-09-25 13:12:31,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1277 states. [2020-09-25 13:12:31,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1477 transitions. [2020-09-25 13:12:31,063 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1477 transitions. Word has length 172 [2020-09-25 13:12:31,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:12:31,064 INFO L479 AbstractCegarLoop]: Abstraction has 1277 states and 1477 transitions. [2020-09-25 13:12:31,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:12:31,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1477 transitions. [2020-09-25 13:12:31,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 13:12:31,069 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:12:31,070 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 13:12:31,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:12:31,070 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:12:31,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:12:31,071 INFO L82 PathProgramCache]: Analyzing trace with hash 654753658, now seen corresponding path program 1 times [2020-09-25 13:12:31,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:12:31,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [976723700] [2020-09-25 13:12:31,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:12:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 13:12:31,155 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 13:12:31,155 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 13:12:31,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:12:31,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:12:31 BoogieIcfgContainer [2020-09-25 13:12:31,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:12:31,200 INFO L168 Benchmark]: Toolchain (without parser) took 32512.05 ms. Allocated memory was 138.9 MB in the beginning and 611.3 MB in the end (delta: 472.4 MB). Free memory was 101.1 MB in the beginning and 271.1 MB in the end (delta: -170.1 MB). Peak memory consumption was 302.3 MB. Max. memory is 7.1 GB. [2020-09-25 13:12:31,201 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 13:12:31,203 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.45 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.4 MB in the beginning and 171.9 MB in the end (delta: -71.5 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2020-09-25 13:12:31,206 INFO L168 Benchmark]: Boogie Preprocessor took 100.52 ms. Allocated memory is still 202.9 MB. Free memory was 171.9 MB in the beginning and 167.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-09-25 13:12:31,212 INFO L168 Benchmark]: RCFGBuilder took 1425.84 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 167.1 MB in the beginning and 176.2 MB in the end (delta: -9.0 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2020-09-25 13:12:31,213 INFO L168 Benchmark]: TraceAbstraction took 30201.17 ms. Allocated memory was 234.9 MB in the beginning and 611.3 MB in the end (delta: 376.4 MB). Free memory was 174.8 MB in the beginning and 271.1 MB in the end (delta: -96.4 MB). Peak memory consumption was 280.1 MB. Max. memory is 7.1 GB. [2020-09-25 13:12:31,225 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 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 774.45 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.4 MB in the beginning and 171.9 MB in the end (delta: -71.5 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.52 ms. Allocated memory is still 202.9 MB. Free memory was 171.9 MB in the beginning and 167.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1425.84 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 167.1 MB in the beginning and 176.2 MB in the end (delta: -9.0 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30201.17 ms. Allocated memory was 234.9 MB in the beginning and 611.3 MB in the end (delta: 376.4 MB). Free memory was 174.8 MB in the beginning and 271.1 MB in the end (delta: -96.4 MB). Peak memory consumption was 280.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L629] int pumpRunning = 0; [L630] int systemActive = 1; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; [L130] int retValue_acc ; [L131] int tmp ; [L135] FCALL select_helpers() [L136] FCALL select_features() [L137] CALL, EXPR valid_product() [L179] int retValue_acc ; [L182] retValue_acc = 1 [L183] return (retValue_acc); [L137] RET, EXPR valid_product() [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) [L141] FCALL setup() [L142] CALL runTest() [L121] CALL test() [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 [L565] COND TRUE 1 [L567] COND TRUE splverifierCounter < 4 [L573] tmp = __VERIFIER_nondet_int() [L575] COND TRUE \read(tmp) [L577] CALL waterRise() [L859] COND TRUE waterLevel < 2 [L860] waterLevel = waterLevel + 1 [L577] RET waterRise() [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND FALSE !(\read(tmp___2)) [L599] tmp___1 = __VERIFIER_nondet_int() [L601] COND TRUE \read(tmp___1) [L603] CALL stopSystem() [L828] COND FALSE !(\read(pumpRunning)) [L835] systemActive = 0 [L603] RET stopSystem() [L610] CALL timeShift() [L637] COND FALSE !(\read(pumpRunning)) [L644] COND FALSE !(\read(systemActive)) [L652] CALL __utac_acc__Specification3_spec__1() [L936] int tmp ; [L937] int tmp___0 ; [L938] int tmp___1 ; [L942] CALL, EXPR isMethaneLevelCritical() [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); [L942] RET, EXPR isMethaneLevelCritical() [L942] tmp = isMethaneLevelCritical() [L944] COND FALSE !(\read(tmp)) [L948] CALL, EXPR getWaterLevel() [L912] int retValue_acc ; [L915] retValue_acc = waterLevel [L916] return (retValue_acc); [L948] RET, EXPR getWaterLevel() [L948] tmp___0 = getWaterLevel() [L950] COND TRUE tmp___0 == 2 [L952] CALL, EXPR isPumpRunning() [L761] int retValue_acc ; [L764] retValue_acc = pumpRunning [L765] return (retValue_acc); [L952] RET, EXPR isPumpRunning() [L952] tmp___1 = isPumpRunning() [L954] COND FALSE !(\read(tmp___1)) [L958] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 639 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 14.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 930 SDtfs, 1631 SDslu, 1191 SDs, 0 SdLazy, 2931 SolverSat, 583 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1277occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 317 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 14.5s InterpolantComputationTime, 669 NumberOfCodeBlocks, 669 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 489 ConstructedInterpolants, 0 QuantifiedInterpolants, 224907 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...