/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_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:11:32,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:11:32,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:11:32,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:11:32,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:11:32,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:11:32,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:11:32,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:11:32,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:11:32,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:11:32,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:11:32,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:11:32,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:11:32,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:11:32,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:11:32,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:11:32,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:11:32,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:11:32,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:11:32,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:11:32,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:11:32,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:11:32,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:11:32,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:11:32,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:11:32,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:11:32,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:11:32,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:11:32,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:11:32,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:11:32,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:11:32,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:11:32,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:11:32,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:11:32,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:11:32,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:11:32,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:11:32,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:11:32,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:11:32,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:11:32,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:11:32,591 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 13:11:32,639 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:11:32,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:11:32,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:11:32,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:11:32,642 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:11:32,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:11:32,643 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:11:32,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:11:32,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:11:32,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:11:32,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:11:32,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:11:32,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:11:32,645 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:11:32,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:11:32,646 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:11:32,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:11:32,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:11:32,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:11:32,647 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:11:32,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:11:32,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:11:32,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:11:32,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:11:32,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:11:32,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:11:32,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:11:32,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:11:32,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:11:32,649 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 13:11:33,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:11:33,091 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:11:33,095 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:11:33,097 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:11:33,098 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:11:33,099 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-09-25 13:11:33,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4553d7e3b/008319aeb0ae45fb8ace7b47c4e26ee4/FLAG7972602fc [2020-09-25 13:11:33,838 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:11:33,839 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-09-25 13:11:33,854 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4553d7e3b/008319aeb0ae45fb8ace7b47c4e26ee4/FLAG7972602fc [2020-09-25 13:11:34,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4553d7e3b/008319aeb0ae45fb8ace7b47c4e26ee4 [2020-09-25 13:11:34,108 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:11:34,113 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:11:34,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:11:34,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:11:34,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:11:34,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:11:34" (1/1) ... [2020-09-25 13:11:34,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:34, skipping insertion in model container [2020-09-25 13:11:34,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:11:34" (1/1) ... [2020-09-25 13:11:34,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:11:34,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:11:34,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:11:34,592 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:11:34,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:11:34,831 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:11:34,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:34 WrapperNode [2020-09-25 13:11:34,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:11:34,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:11:34,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:11:34,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:11:34,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:34" (1/1) ... [2020-09-25 13:11:34,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:34" (1/1) ... [2020-09-25 13:11:34,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:34" (1/1) ... [2020-09-25 13:11:34,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:34" (1/1) ... [2020-09-25 13:11:34,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:34" (1/1) ... [2020-09-25 13:11:34,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:34" (1/1) ... [2020-09-25 13:11:34,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:34" (1/1) ... [2020-09-25 13:11:34,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:11:34,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:11:34,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:11:34,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:11:34,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:34" (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 13:11:35,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:11:35,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:11:35,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:11:35,038 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:11:35,038 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:11:35,038 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:11:35,038 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:11:35,039 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:11:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:11:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 13:11:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:11:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:11:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:11:35,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:11:35,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:11:35,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:11:35,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:11:35,042 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:11:35,042 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:11:35,043 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:11:35,043 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 13:11:35,044 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:11:35,044 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 13:11:35,044 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:11:35,044 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:11:35,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:11:35,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:11:35,045 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:11:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 13:11:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 13:11:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 13:11:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:11:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:11:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:11:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:11:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:11:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:11:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:11:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:11:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:11:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:11:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:11:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:11:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:11:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:11:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:11:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:11:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:11:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:11:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 13:11:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:11:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:11:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:11:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:11:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:11:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:11:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:11:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:11:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:11:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:11:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:11:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:11:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:11:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:11:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:11:35,053 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:11:35,053 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:11:35,053 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:11:35,053 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 13:11:35,054 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:11:35,054 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:11:35,055 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:11:35,056 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:11:35,056 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:11:35,056 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:11:35,056 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:11:35,056 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 13:11:35,057 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:11:35,057 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:11:35,057 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 13:11:35,057 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 13:11:35,057 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:11:35,058 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 13:11:35,058 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:11:35,058 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:11:35,059 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:11:35,059 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:11:35,059 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:11:35,059 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:11:35,059 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:11:35,059 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:11:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:11:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:11:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:11:36,274 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:11:36,274 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:11:36,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:11:36 BoogieIcfgContainer [2020-09-25 13:11:36,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:11:36,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:11:36,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:11:36,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:11:36,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:11:34" (1/3) ... [2020-09-25 13:11:36,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da951bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:11:36, skipping insertion in model container [2020-09-25 13:11:36,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:34" (2/3) ... [2020-09-25 13:11:36,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da951bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:11:36, skipping insertion in model container [2020-09-25 13:11:36,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:11:36" (3/3) ... [2020-09-25 13:11:36,292 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2020-09-25 13:11:36,304 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:11:36,315 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:11:36,336 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:11:36,369 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:11:36,369 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:11:36,369 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:11:36,369 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:11:36,369 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:11:36,369 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:11:36,370 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:11:36,370 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:11:36,399 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-25 13:11:36,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 13:11:36,423 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:36,424 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 13:11:36,424 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:36,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:36,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1392630044, now seen corresponding path program 1 times [2020-09-25 13:11:36,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:36,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144053336] [2020-09-25 13:11:36,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:36,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:37,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:38,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:41,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:41,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:11:41,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:11:41,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 13:11:41,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:41,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:41,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:11:41,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 13:11:41,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 13:11:41,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:11:42,261 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:11:42,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:11:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:42,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:42,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:42,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:11:42,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:42,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-25 13:11:42,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:42,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:11:42,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:42,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:11:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:42,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:42,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:42,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:42,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:42,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:42,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:42,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:42,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:42,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:42,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:42,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:42,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:11:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:42,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:42,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:42,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:42,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:42,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 13:11:42,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:42,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:42,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:42,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:42,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:42,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:42,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:11:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:42,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:42,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:42,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:42,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:42,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:11:42,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:42,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:42,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:42,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:42,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:42,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:42,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:11:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:42,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:42,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:42,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:42,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:42,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:11:42,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:42,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:42,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:42,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:42,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:42,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:42,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 13:11:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:42,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:42,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:42,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:42,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:42,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:42,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:42,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:42,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:42,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:42,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:42,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:42,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 13:11:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:42,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:42,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:42,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:42,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:42,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:42,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:42,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:42,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:42,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:42,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:42,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:42,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 13:11:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:42,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:42,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:42,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:42,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:42,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:11:42,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:42,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:42,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:42,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:42,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:42,851 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 13:11:42,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [144053336] [2020-09-25 13:11:42,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:11:42,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:11:42,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676547213] [2020-09-25 13:11:42,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:11:42,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:11:42,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:11:42,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:11:42,890 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 4 states. [2020-09-25 13:11:43,464 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:11:45,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:11:45,721 INFO L93 Difference]: Finished difference Result 674 states and 823 transitions. [2020-09-25 13:11:45,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:11:45,724 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-25 13:11:45,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:11:45,746 INFO L225 Difference]: With dead ends: 674 [2020-09-25 13:11:45,746 INFO L226 Difference]: Without dead ends: 473 [2020-09-25 13:11:45,753 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 13:11:45,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-09-25 13:11:45,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 406. [2020-09-25 13:11:45,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2020-09-25 13:11:45,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 457 transitions. [2020-09-25 13:11:45,921 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 457 transitions. Word has length 153 [2020-09-25 13:11:45,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:11:45,922 INFO L479 AbstractCegarLoop]: Abstraction has 406 states and 457 transitions. [2020-09-25 13:11:45,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:11:45,922 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 457 transitions. [2020-09-25 13:11:45,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 13:11:45,929 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:45,929 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] [2020-09-25 13:11:45,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:11:45,930 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:45,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:45,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1070517093, now seen corresponding path program 1 times [2020-09-25 13:11:45,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:45,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1249549128] [2020-09-25 13:11:45,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:46,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:48,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:48,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 13:11:48,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:48,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2249 [2020-09-25 13:11:48,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:48,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:48,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 13:11:48,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:11:48,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-25 13:11:48,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:48,620 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:11:48,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:11:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:48,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:48,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:48,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:11:48,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:48,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-25 13:11:48,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:48,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:48,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:48,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:48,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:11:48,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:48,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:11:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:48,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:48,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:48,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:48,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:48,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:48,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:48,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:48,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:48,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:48,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:48,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:11:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:48,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:48,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:48,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:48,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:48,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:48,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:48,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:48,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:48,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:48,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:48,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:48,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:11:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:48,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:48,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:48,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:48,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:48,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:11:48,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:48,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:48,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:48,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:48,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:48,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:48,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:11:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:48,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:48,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:48,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:48,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:48,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:48,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:48,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:48,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:48,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:48,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:48,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:49,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 13:11:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:49,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:49,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:49,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:11:49,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:49,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:11:49,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:49,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:49,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:49,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:49,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:11:49,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:49,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:11:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:49,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:49,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:49,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:11:49,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:49,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:49,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:49,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:49,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:49,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:49,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:49,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:49,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:11:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:49,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:49,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:49,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:49,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:49,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:49,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:49,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:49,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:49,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:49,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:49,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:49,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 13:11:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:49,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:49,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:49,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:49,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:49,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:49,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:49,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:49,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:49,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:49,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:49,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:49,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 13:11:49,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:49,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:49,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:49,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:49,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:49,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:11:49,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:49,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:49,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:11:49,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:49,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:49,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:49,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 13:11:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:49,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:49,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:49,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:49,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:49,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:49,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:49,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:49,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:49,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:49,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:49,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:49,124 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 13:11:49,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1249549128] [2020-09-25 13:11:49,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:11:49,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:11:49,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857124777] [2020-09-25 13:11:49,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:11:49,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:11:49,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:11:49,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:11:49,129 INFO L87 Difference]: Start difference. First operand 406 states and 457 transitions. Second operand 9 states. [2020-09-25 13:11:49,666 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:11:51,844 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:11:52,212 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:11:52,570 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:11:52,928 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:11:53,232 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:11:53,597 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:11:53,925 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:11:55,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:11:55,408 INFO L93 Difference]: Finished difference Result 1198 states and 1544 transitions. [2020-09-25 13:11:55,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 13:11:55,409 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2020-09-25 13:11:55,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:11:55,422 INFO L225 Difference]: With dead ends: 1198 [2020-09-25 13:11:55,422 INFO L226 Difference]: Without dead ends: 855 [2020-09-25 13:11:55,428 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 13:11:55,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2020-09-25 13:11:55,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 679. [2020-09-25 13:11:55,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2020-09-25 13:11:55,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 785 transitions. [2020-09-25 13:11:55,565 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 785 transitions. Word has length 176 [2020-09-25 13:11:55,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:11:55,566 INFO L479 AbstractCegarLoop]: Abstraction has 679 states and 785 transitions. [2020-09-25 13:11:55,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:11:55,567 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 785 transitions. [2020-09-25 13:11:55,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 13:11:55,574 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:55,574 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 13:11:55,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:11:55,575 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:55,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:55,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1677643238, now seen corresponding path program 1 times [2020-09-25 13:11:55,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:55,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1735143658] [2020-09-25 13:11:55,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 13:11:55,677 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 13:11:55,677 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 13:11:55,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:11:55,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:11:55 BoogieIcfgContainer [2020-09-25 13:11:55,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:11:55,718 INFO L168 Benchmark]: Toolchain (without parser) took 21607.98 ms. Allocated memory was 141.6 MB in the beginning and 561.5 MB in the end (delta: 420.0 MB). Free memory was 103.6 MB in the beginning and 509.6 MB in the end (delta: -406.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:55,719 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:11:55,720 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.63 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 102.9 MB in the beginning and 173.3 MB in the end (delta: -70.3 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:55,721 INFO L168 Benchmark]: Boogie Preprocessor took 103.55 ms. Allocated memory is still 205.5 MB. Free memory was 173.3 MB in the beginning and 169.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:55,722 INFO L168 Benchmark]: RCFGBuilder took 1344.01 ms. Allocated memory was 205.5 MB in the beginning and 234.9 MB in the end (delta: 29.4 MB). Free memory was 169.3 MB in the beginning and 170.5 MB in the end (delta: -1.2 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:55,722 INFO L168 Benchmark]: TraceAbstraction took 19431.83 ms. Allocated memory was 234.9 MB in the beginning and 561.5 MB in the end (delta: 326.6 MB). Free memory was 170.5 MB in the beginning and 509.6 MB in the end (delta: -339.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:11:55,727 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.63 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 102.9 MB in the beginning and 173.3 MB in the end (delta: -70.3 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.55 ms. Allocated memory is still 205.5 MB. Free memory was 173.3 MB in the beginning and 169.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1344.01 ms. Allocated memory was 205.5 MB in the beginning and 234.9 MB in the end (delta: 29.4 MB). Free memory was 169.3 MB in the beginning and 170.5 MB in the end (delta: -1.2 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19431.83 ms. Allocated memory was 234.9 MB in the beginning and 561.5 MB in the end (delta: 326.6 MB). Free memory was 170.5 MB in the beginning and 509.6 MB in the end (delta: -339.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 140]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L314] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L585] int pumpRunning = 0; [L586] int systemActive = 1; [L868] int cleanupTimeShifts = 4; [L941] int retValue_acc ; [L942] int tmp ; [L946] FCALL select_helpers() [L947] FCALL select_features() [L948] CALL, EXPR valid_product() [L859] int retValue_acc ; [L862] retValue_acc = 1 [L863] return (retValue_acc); [L948] RET, EXPR valid_product() [L948] tmp = valid_product() [L950] COND TRUE \read(tmp) [L952] FCALL setup() [L953] CALL runTest() [L935] CALL test() [L515] int splverifierCounter ; [L516] int tmp ; [L517] int tmp___0 ; [L518] int tmp___1 ; [L519] int tmp___2 ; [L522] splverifierCounter = 0 [L524] COND TRUE 1 [L526] COND TRUE splverifierCounter < 4 [L532] tmp = __VERIFIER_nondet_int() [L534] COND TRUE \read(tmp) [L536] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L536] RET waterRise() [L542] tmp___0 = __VERIFIER_nondet_int() [L544] COND FALSE !(\read(tmp___0)) [L552] tmp___2 = __VERIFIER_nondet_int() [L554] COND FALSE !(\read(tmp___2)) [L558] tmp___1 = __VERIFIER_nondet_int() [L560] COND TRUE \read(tmp___1) [L562] CALL stopSystem() [L784] COND FALSE !(\read(pumpRunning)) [L791] systemActive = 0 [L562] RET stopSystem() [L569] CALL timeShift() [L593] COND FALSE !(\read(pumpRunning)) [L600] COND FALSE !(\read(systemActive)) [L608] CALL __utac_acc__Specification3_spec__1() [L797] int tmp ; [L798] int tmp___0 ; [L799] int tmp___1 ; [L803] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L803] RET, EXPR isMethaneLevelCritical() [L803] tmp = isMethaneLevelCritical() [L805] COND FALSE !(\read(tmp)) [L809] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L809] RET, EXPR getWaterLevel() [L809] tmp___0 = getWaterLevel() [L811] COND TRUE tmp___0 == 2 [L813] CALL, EXPR isPumpRunning() [L717] int retValue_acc ; [L720] retValue_acc = pumpRunning [L721] return (retValue_acc); [L813] RET, EXPR isPumpRunning() [L813] tmp___1 = isPumpRunning() [L815] COND FALSE !(\read(tmp___1)) [L819] CALL __automaton_fail() [L140] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 636 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 540 SDtfs, 936 SDslu, 696 SDs, 0 SdLazy, 1854 SolverSat, 340 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=679occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 243 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 506 NumberOfCodeBlocks, 506 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 327 ConstructedInterpolants, 0 QuantifiedInterpolants, 144436 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...