/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=HIGHLEXORDER --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_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:28:41,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:28:41,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:28:41,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:28:41,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:28:41,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:28:41,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:28:41,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:28:41,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:28:41,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:28:41,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:28:42,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:28:42,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:28:42,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:28:42,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:28:42,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:28:42,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:28:42,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:28:42,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:28:42,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:28:42,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:28:42,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:28:42,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:28:42,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:28:42,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:28:42,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:28:42,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:28:42,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:28:42,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:28:42,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:28:42,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:28:42,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:28:42,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:28:42,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:28:42,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:28:42,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:28:42,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:28:42,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:28:42,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:28:42,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:28:42,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:28:42,058 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 22:28:42,114 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:28:42,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:28:42,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:28:42,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:28:42,117 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:28:42,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:28:42,118 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:28:42,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:28:42,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:28:42,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:28:42,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:28:42,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:28:42,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:28:42,121 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:28:42,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:28:42,121 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:28:42,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:28:42,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:28:42,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:28:42,122 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:28:42,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:28:42,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:28:42,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:28:42,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:28:42,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:28:42,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:28:42,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:28:42,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:28:42,125 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:28:42,125 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:28:42,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:28:42,635 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:28:42,640 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:28:42,643 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:28:42,643 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:28:42,645 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c [2020-09-24 22:28:42,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5291b2c9b/75a88f7fe421441d91998ff9d3143831/FLAGea74dad8b [2020-09-24 22:28:43,365 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:28:43,366 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c [2020-09-24 22:28:43,395 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5291b2c9b/75a88f7fe421441d91998ff9d3143831/FLAGea74dad8b [2020-09-24 22:28:43,628 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5291b2c9b/75a88f7fe421441d91998ff9d3143831 [2020-09-24 22:28:43,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:28:43,648 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:28:43,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:28:43,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:28:43,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:28:43,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:28:43" (1/1) ... [2020-09-24 22:28:43,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:43, skipping insertion in model container [2020-09-24 22:28:43,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:28:43" (1/1) ... [2020-09-24 22:28:43,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:28:43,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:28:44,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:28:44,342 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:28:44,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:28:44,464 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:28:44,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:44 WrapperNode [2020-09-24 22:28:44,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:28:44,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:28:44,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:28:44,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:28:44,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:44" (1/1) ... [2020-09-24 22:28:44,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:44" (1/1) ... [2020-09-24 22:28:44,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:44" (1/1) ... [2020-09-24 22:28:44,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:44" (1/1) ... [2020-09-24 22:28:44,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:44" (1/1) ... [2020-09-24 22:28:44,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:44" (1/1) ... [2020-09-24 22:28:44,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:44" (1/1) ... [2020-09-24 22:28:44,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:28:44,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:28:44,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:28:44,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:28:44,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:28:44,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:28:44,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:28:44,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:28:44,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:28:44,695 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:28:44,695 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:28:44,695 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 22:28:44,696 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:28:44,696 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:28:44,696 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:28:44,696 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:28:44,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:28:44,697 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:28:44,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 22:28:44,697 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 22:28:44,698 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 22:28:44,698 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:28:44,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:28:44,698 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:28:44,699 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:28:44,699 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:28:44,699 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:28:44,699 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:28:44,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:28:44,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:28:44,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:28:44,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:28:44,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:28:44,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:28:44,701 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:28:44,701 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:28:44,701 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:28:44,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:28:44,701 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:28:44,701 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:28:44,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 22:28:44,702 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:28:44,702 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:28:44,702 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:28:44,702 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:28:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:28:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:28:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:28:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:28:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:28:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:28:44,704 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:28:44,704 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 22:28:44,704 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:28:44,704 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:28:44,704 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:28:44,704 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:28:44,705 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:28:44,705 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 22:28:44,705 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 22:28:44,705 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:28:44,705 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:28:44,706 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:28:44,706 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 22:28:44,706 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 22:28:44,706 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:28:44,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:28:44,706 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:28:44,706 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:28:44,707 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:28:44,707 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:28:44,707 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:28:44,707 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:28:44,707 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:28:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:28:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:28:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:28:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:28:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:28:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:28:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:28:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:28:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:28:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:28:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:28:44,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:28:44,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:28:44,710 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:28:44,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:28:44,710 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:28:44,710 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:28:44,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:28:44,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:28:44,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:28:44,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:28:44,711 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:28:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:28:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:28:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:28:46,018 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:28:46,018 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:28:46,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:28:46 BoogieIcfgContainer [2020-09-24 22:28:46,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:28:46,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:28:46,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:28:46,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:28:46,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:28:43" (1/3) ... [2020-09-24 22:28:46,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b17ddd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:28:46, skipping insertion in model container [2020-09-24 22:28:46,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:44" (2/3) ... [2020-09-24 22:28:46,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b17ddd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:28:46, skipping insertion in model container [2020-09-24 22:28:46,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:28:46" (3/3) ... [2020-09-24 22:28:46,036 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2020-09-24 22:28:46,048 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:28:46,060 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:28:46,085 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:28:46,123 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:28:46,123 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:28:46,123 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:28:46,123 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:28:46,124 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:28:46,124 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:28:46,124 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:28:46,124 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:28:46,156 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-24 22:28:46,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 22:28:46,177 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:46,179 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] [2020-09-24 22:28:46,179 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:46,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:46,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1912594641, now seen corresponding path program 1 times [2020-09-24 22:28:46,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:46,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700009640] [2020-09-24 22:28:46,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:46,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:46,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:48,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:51,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:51,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 22:28:51,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:28:51,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-24 22:28:51,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:51,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:51,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 22:28:51,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:51,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 22:28:52,059 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:28:52,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:28:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:52,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:52,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:52,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:28:52,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:52,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-24 22:28:52,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:52,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:52,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:52,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:28:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:52,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:52,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:52,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:52,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:52,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:52,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:52,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:52,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:52,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:52,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:52,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:28:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:52,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:52,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:52,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:52,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:52,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:52,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:52,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:52,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:52,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:52,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:52,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:28:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:52,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:52,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:52,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:52,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:52,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:28:52,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:52,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:52,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:52,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:52,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:52,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:28:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:52,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:52,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:52,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:52,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:52,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:52,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:52,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:52,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:52,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:52,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:52,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 22:28:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:52,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:52,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:52,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:52,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:52,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:52,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:52,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:52,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:52,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:52,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:52,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:28:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:52,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:52,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:52,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:52,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:52,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:52,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:52,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:52,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:52,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:52,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:52,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 22:28:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:52,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:52,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:52,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:52,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:52,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:52,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:52,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:52,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:52,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:52,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:52,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:28:52,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700009640] [2020-09-24 22:28:52,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:28:52,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:28:52,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312116962] [2020-09-24 22:28:52,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:28:52,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:28:52,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:28:52,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:28:52,454 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 3 states. [2020-09-24 22:28:53,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:28:53,849 INFO L93 Difference]: Finished difference Result 500 states and 599 transitions. [2020-09-24 22:28:53,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:28:53,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 22:28:53,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:28:53,886 INFO L225 Difference]: With dead ends: 500 [2020-09-24 22:28:53,887 INFO L226 Difference]: Without dead ends: 309 [2020-09-24 22:28:53,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:28:53,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-09-24 22:28:54,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 265. [2020-09-24 22:28:54,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-09-24 22:28:54,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 290 transitions. [2020-09-24 22:28:54,117 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 290 transitions. Word has length 153 [2020-09-24 22:28:54,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:28:54,120 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 290 transitions. [2020-09-24 22:28:54,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:28:54,120 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 290 transitions. [2020-09-24 22:28:54,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 22:28:54,126 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:54,126 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] [2020-09-24 22:28:54,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:28:54,127 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:54,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:54,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1080326154, now seen corresponding path program 1 times [2020-09-24 22:28:54,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:54,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [362984789] [2020-09-24 22:28:54,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:54,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:54,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:55,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:59,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:59,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 22:28:59,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:28:59,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 22:28:59,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:59,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:59,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 22:28:59,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:28:59,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:59,613 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:28:59,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:28:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:59,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:59,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:59,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:28:59,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:59,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 22:28:59,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:59,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:59,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:59,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:59,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:59,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:28:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:59,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:59,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:59,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:59,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:59,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:59,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:59,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:59,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:59,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:59,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:59,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:28:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:59,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:59,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:59,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:59,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:59,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:28:59,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:59,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:59,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:59,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:59,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:59,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:28:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:59,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:59,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:59,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:59,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:59,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:59,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:59,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:59,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:59,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:59,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:59,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:28:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:59,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:59,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:59,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:59,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:59,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:28:59,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:59,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:59,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:59,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:59,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:59,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 22:28:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:59,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:59,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:59,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:59,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:59,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:59,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:59,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:59,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:59,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:59,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:59,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 22:28:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:59,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:59,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:59,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:59,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:59,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:59,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:59,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:59,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:59,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:59,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:59,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:28:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:59,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:59,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:59,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:59,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:59,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:59,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:59,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:59,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:59,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:59,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:59,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:28:59,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [362984789] [2020-09-24 22:28:59,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:28:59,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 22:28:59,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234188524] [2020-09-24 22:28:59,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 22:28:59,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:28:59,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 22:28:59,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 22:28:59,833 INFO L87 Difference]: Start difference. First operand 265 states and 290 transitions. Second operand 4 states. [2020-09-24 22:29:00,562 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:29:01,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:01,689 INFO L93 Difference]: Finished difference Result 407 states and 462 transitions. [2020-09-24 22:29:01,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:29:01,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 22:29:01,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:01,695 INFO L225 Difference]: With dead ends: 407 [2020-09-24 22:29:01,695 INFO L226 Difference]: Without dead ends: 292 [2020-09-24 22:29:01,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:29:01,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-09-24 22:29:01,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 255. [2020-09-24 22:29:01,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-24 22:29:01,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 277 transitions. [2020-09-24 22:29:01,742 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 277 transitions. Word has length 154 [2020-09-24 22:29:01,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:01,742 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 277 transitions. [2020-09-24 22:29:01,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 22:29:01,743 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 277 transitions. [2020-09-24 22:29:01,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 22:29:01,746 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:01,746 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] [2020-09-24 22:29:01,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:29:01,747 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:01,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:01,747 INFO L82 PathProgramCache]: Analyzing trace with hash 240826418, now seen corresponding path program 1 times [2020-09-24 22:29:01,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:01,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359758686] [2020-09-24 22:29:01,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:01,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:02,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:04,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:04,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 22:29:04,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:29:04,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3055 [2020-09-24 22:29:04,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:04,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:04,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 22:29:04,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:29:04,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:05,188 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:05,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:05,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:05,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:05,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:05,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:05,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 22:29:05,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:05,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:05,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:05,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:05,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:05,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:05,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:05,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:05,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:05,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:05,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:05,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:05,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:05,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:05,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:05,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:05,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:05,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:05,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:05,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:05,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:05,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:05,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:05,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:05,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:05,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:05,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 22:29:05,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:05,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:05,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:05,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:05,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:05,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:05,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:05,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:05,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:05,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:05,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:05,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:05,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:05,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:05,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:05,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:05,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:05,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:05,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:05,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:05,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:05,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:05,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:29:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:05,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:05,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:05,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:29:05,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:05,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:05,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:05,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:05,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:05,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 22:29:05,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:05,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 22:29:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:05,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:05,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:05,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:05,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:05,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:05,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:05,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:05,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:05,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:05,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:05,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 22:29:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:05,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:05,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:05,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:05,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:05,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:29:05,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:05,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:05,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:05,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:05,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:05,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 22:29:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:05,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:05,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:05,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:05,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:05,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:05,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:05,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:05,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:05,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:05,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:05,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:29:05,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359758686] [2020-09-24 22:29:05,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:05,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:29:05,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477255752] [2020-09-24 22:29:05,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:29:05,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:05,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:29:05,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:29:05,466 INFO L87 Difference]: Start difference. First operand 255 states and 277 transitions. Second operand 5 states. [2020-09-24 22:29:05,922 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:29:07,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:07,909 INFO L93 Difference]: Finished difference Result 615 states and 718 transitions. [2020-09-24 22:29:07,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:29:07,909 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 22:29:07,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:07,914 INFO L225 Difference]: With dead ends: 615 [2020-09-24 22:29:07,915 INFO L226 Difference]: Without dead ends: 470 [2020-09-24 22:29:07,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:29:07,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-09-24 22:29:07,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 390. [2020-09-24 22:29:07,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-09-24 22:29:07,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 435 transitions. [2020-09-24 22:29:08,000 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 435 transitions. Word has length 167 [2020-09-24 22:29:08,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:08,000 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 435 transitions. [2020-09-24 22:29:08,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:29:08,001 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 435 transitions. [2020-09-24 22:29:08,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 22:29:08,004 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:08,005 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] [2020-09-24 22:29:08,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:29:08,005 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:08,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:08,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1420890141, now seen corresponding path program 1 times [2020-09-24 22:29:08,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:08,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1920887573] [2020-09-24 22:29:08,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:08,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:09,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:09,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 22:29:09,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:09,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1912 [2020-09-24 22:29:09,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:09,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 22:29:09,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 22:29:09,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 22:29:09,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:10,330 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:10,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:10,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:10,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:10,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:10,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:10,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-24 22:29:10,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:10,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:10,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:10,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 22:29:10,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:10,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:10,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:10,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:10,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:10,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:10,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:10,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:10,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:10,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:10,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:10,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:10,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:10,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:10,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:10,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:10,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:10,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:10,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:10,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:10,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:10,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:10,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:10,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:10,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:10,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:10,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:10,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:10,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:29:10,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:10,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:10,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:10,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:10,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:10,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:10,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:10,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:10,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:10,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:10,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:10,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:10,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:10,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:10,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:10,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:10,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 22:29:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:10,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:10,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:10,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:29:10,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:10,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:10,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:10,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:10,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:10,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:29:10,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:10,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 22:29:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:10,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:10,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:10,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:10,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:10,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:10,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:10,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:10,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:10,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:10,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:10,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 22:29:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:10,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:10,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:10,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:10,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:10,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:29:10,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:10,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:29:10,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:10,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:10,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:10,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 22:29:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:10,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:10,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:10,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:10,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:10,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:10,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:10,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:10,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:10,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:10,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:10,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:29:10,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1920887573] [2020-09-24 22:29:10,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:10,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:29:10,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547779871] [2020-09-24 22:29:10,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:29:10,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:10,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:29:10,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:29:10,825 INFO L87 Difference]: Start difference. First operand 390 states and 435 transitions. Second operand 10 states. [2020-09-24 22:29:11,432 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:29:13,622 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:29:14,250 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-24 22:29:14,637 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:29:14,999 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:29:15,342 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:29:15,673 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:29:15,988 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:29:16,412 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:29:17,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:17,366 INFO L93 Difference]: Finished difference Result 1056 states and 1281 transitions. [2020-09-24 22:29:17,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 22:29:17,367 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-24 22:29:17,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:17,373 INFO L225 Difference]: With dead ends: 1056 [2020-09-24 22:29:17,373 INFO L226 Difference]: Without dead ends: 776 [2020-09-24 22:29:17,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 22:29:17,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-09-24 22:29:17,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 667. [2020-09-24 22:29:17,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2020-09-24 22:29:17,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 767 transitions. [2020-09-24 22:29:17,492 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 767 transitions. Word has length 172 [2020-09-24 22:29:17,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:17,493 INFO L479 AbstractCegarLoop]: Abstraction has 667 states and 767 transitions. [2020-09-24 22:29:17,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:29:17,493 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 767 transitions. [2020-09-24 22:29:17,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 22:29:17,498 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:17,499 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] [2020-09-24 22:29:17,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:29:17,499 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:17,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:17,499 INFO L82 PathProgramCache]: Analyzing trace with hash -557067660, now seen corresponding path program 1 times [2020-09-24 22:29:17,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:17,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302241558] [2020-09-24 22:29:17,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 22:29:17,568 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 22:29:17,568 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 22:29:17,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:29:17,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:29:17 BoogieIcfgContainer [2020-09-24 22:29:17,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 22:29:17,604 INFO L168 Benchmark]: Toolchain (without parser) took 33960.55 ms. Allocated memory was 145.2 MB in the beginning and 655.4 MB in the end (delta: 510.1 MB). Free memory was 100.4 MB in the beginning and 89.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 520.6 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:17,605 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 22:29:17,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 815.90 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 99.8 MB in the beginning and 170.2 MB in the end (delta: -70.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:17,607 INFO L168 Benchmark]: Boogie Preprocessor took 124.49 ms. Allocated memory is still 202.4 MB. Free memory was 170.2 MB in the beginning and 166.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:17,608 INFO L168 Benchmark]: RCFGBuilder took 1435.67 ms. Allocated memory was 202.4 MB in the beginning and 232.8 MB in the end (delta: 30.4 MB). Free memory was 166.0 MB in the beginning and 175.5 MB in the end (delta: -9.6 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:17,609 INFO L168 Benchmark]: TraceAbstraction took 31574.71 ms. Allocated memory was 232.8 MB in the beginning and 655.4 MB in the end (delta: 422.6 MB). Free memory was 174.1 MB in the beginning and 89.9 MB in the end (delta: 84.1 MB). Peak memory consumption was 506.7 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:17,613 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 815.90 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 99.8 MB in the beginning and 170.2 MB in the end (delta: -70.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.49 ms. Allocated memory is still 202.4 MB. Free memory was 170.2 MB in the beginning and 166.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1435.67 ms. Allocated memory was 202.4 MB in the beginning and 232.8 MB in the end (delta: 30.4 MB). Free memory was 166.0 MB in the beginning and 175.5 MB in the end (delta: -9.6 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31574.71 ms. Allocated memory was 232.8 MB in the beginning and 655.4 MB in the end (delta: 422.6 MB). Free memory was 174.1 MB in the beginning and 89.9 MB in the end (delta: 84.1 MB). Peak memory consumption was 506.7 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: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L369] int cleanupTimeShifts = 4; [L637] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; [L445] int retValue_acc ; [L446] int tmp ; [L450] FCALL select_helpers() [L451] FCALL select_features() [L452] CALL, EXPR valid_product() [L949] int retValue_acc ; [L952] retValue_acc = 1 [L953] return (retValue_acc); [L452] RET, EXPR valid_product() [L452] tmp = valid_product() [L454] COND TRUE \read(tmp) [L456] FCALL setup() [L457] CALL runTest() [L436] CALL test() [L266] int splverifierCounter ; [L267] int tmp ; [L268] int tmp___0 ; [L269] int tmp___1 ; [L270] int tmp___2 ; [L273] splverifierCounter = 0 [L275] COND TRUE 1 [L277] COND TRUE splverifierCounter < 4 [L283] tmp = __VERIFIER_nondet_int() [L285] COND TRUE \read(tmp) [L287] CALL waterRise() [L852] COND TRUE waterLevel < 2 [L853] waterLevel = waterLevel + 1 [L287] RET waterRise() [L293] tmp___0 = __VERIFIER_nondet_int() [L295] COND FALSE !(\read(tmp___0)) [L303] tmp___2 = __VERIFIER_nondet_int() [L305] COND FALSE !(\read(tmp___2)) [L311] tmp___1 = __VERIFIER_nondet_int() [L313] COND TRUE \read(tmp___1) [L315] CALL stopSystem() [L242] COND FALSE !(\read(pumpRunning)) [L249] systemActive = 0 [L315] RET stopSystem() [L322] CALL timeShift() [L68] COND FALSE !(\read(pumpRunning)) [L75] COND FALSE !(\read(systemActive)) [L83] CALL __utac_acc__Specification3_spec__1() [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L342] CALL, EXPR isMethaneLevelCritical() [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] return (retValue_acc); [L342] RET, EXPR isMethaneLevelCritical() [L342] tmp = isMethaneLevelCritical() [L344] COND FALSE !(\read(tmp)) [L348] CALL, EXPR getWaterLevel() [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] return (retValue_acc); [L348] RET, EXPR getWaterLevel() [L348] tmp___0 = getWaterLevel() [L350] COND TRUE tmp___0 == 2 [L352] CALL, EXPR isPumpRunning() [L175] int retValue_acc ; [L178] retValue_acc = pumpRunning [L179] return (retValue_acc); [L352] RET, EXPR isPumpRunning() [L352] tmp___1 = isPumpRunning() [L354] COND FALSE !(\read(tmp___1)) [L358] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 631 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 31.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1028 SDtfs, 1437 SDslu, 893 SDs, 0 SdLazy, 2242 SolverSat, 528 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=667occurred in iteration=4, 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, 4 MinimizatonAttempts, 270 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.8s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 256403 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...