/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=SHALLOWEST --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_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:36:39,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:36:39,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:36:39,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:36:39,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:36:39,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:36:39,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:36:39,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:36:39,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:36:39,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:36:39,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:36:39,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:36:39,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:36:39,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:36:39,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:36:39,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:36:39,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:36:39,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:36:39,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:36:39,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:36:39,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:36:39,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:36:39,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:36:39,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:36:39,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:36:39,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:36:39,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:36:39,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:36:39,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:36:39,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:36:39,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:36:39,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:36:39,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:36:39,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:36:39,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:36:39,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:36:39,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:36:39,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:36:39,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:36:39,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:36:39,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:36:39,721 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 23:36:39,773 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:36:39,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:36:39,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:36:39,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:36:39,776 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:36:39,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:36:39,777 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:36:39,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:36:39,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:36:39,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:36:39,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:36:39,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:36:39,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:36:39,780 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:36:39,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:36:39,780 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:36:39,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:36:39,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:36:39,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:36:39,781 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:36:39,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:36:39,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:36:39,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:36:39,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:36:39,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:36:39,782 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:36:39,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:36:39,783 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:36:39,783 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:36:39,783 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:36:40,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:36:40,276 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:36:40,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:36:40,282 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:36:40,283 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:36:40,284 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-09-24 23:36:40,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e00121a83/9a9ede3f099549a98e93494f3c099a7b/FLAGfebc57f72 [2020-09-24 23:36:40,969 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:36:40,970 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-09-24 23:36:40,986 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e00121a83/9a9ede3f099549a98e93494f3c099a7b/FLAGfebc57f72 [2020-09-24 23:36:41,183 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e00121a83/9a9ede3f099549a98e93494f3c099a7b [2020-09-24 23:36:41,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:36:41,200 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:36:41,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:36:41,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:36:41,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:36:41,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:36:41" (1/1) ... [2020-09-24 23:36:41,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4365ba2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41, skipping insertion in model container [2020-09-24 23:36:41,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:36:41" (1/1) ... [2020-09-24 23:36:41,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:36:41,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:36:41,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:36:41,712 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:36:41,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:36:41,933 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:36:41,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41 WrapperNode [2020-09-24 23:36:41,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:36:41,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:36:41,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:36:41,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:36:41,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41" (1/1) ... [2020-09-24 23:36:41,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41" (1/1) ... [2020-09-24 23:36:41,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41" (1/1) ... [2020-09-24 23:36:41,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41" (1/1) ... [2020-09-24 23:36:42,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41" (1/1) ... [2020-09-24 23:36:42,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41" (1/1) ... [2020-09-24 23:36:42,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41" (1/1) ... [2020-09-24 23:36:42,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:36:42,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:36:42,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:36:42,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:36:42,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41" (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 23:36:42,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:36:42,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:36:42,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:36:42,133 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:36:42,133 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:36:42,133 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:36:42,134 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:36:42,134 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:36:42,134 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:36:42,134 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:36:42,134 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 23:36:42,135 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:36:42,135 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 23:36:42,135 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:36:42,135 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:36:42,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:36:42,136 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:36:42,136 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:36:42,136 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:36:42,136 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 23:36:42,137 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:36:42,137 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 23:36:42,137 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:36:42,137 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:36:42,137 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:36:42,138 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:36:42,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:36:42,138 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:36:42,138 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:36:42,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:36:42,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 23:36:42,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:36:42,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:36:42,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:36:42,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:36:42,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:36:42,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:36:42,140 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:36:42,140 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:36:42,140 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:36:42,140 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:36:42,140 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:36:42,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:36:42,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 23:36:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:36:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:36:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:36:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:36:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:36:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:36:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:36:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:36:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:36:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:36:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:36:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 23:36:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:36:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:36:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:36:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:36:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:36:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:36:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 23:36:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 23:36:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:36:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:36:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:36:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:36:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 23:36:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 23:36:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:36:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 23:36:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:36:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:36:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:36:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:36:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:36:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:36:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:36:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:36:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:36:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:36:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:36:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:36:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:36:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:36:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:36:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:36:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:36:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:36:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:36:42,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:36:42,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:36:42,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:36:42,149 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:36:42,149 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:36:42,149 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:36:42,149 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:36:42,150 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:36:42,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:36:42,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:36:42,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:36:43,509 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:36:43,510 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:36:43,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:36:43 BoogieIcfgContainer [2020-09-24 23:36:43,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:36:43,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:36:43,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:36:43,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:36:43,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:36:41" (1/3) ... [2020-09-24 23:36:43,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ef44f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:36:43, skipping insertion in model container [2020-09-24 23:36:43,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41" (2/3) ... [2020-09-24 23:36:43,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ef44f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:36:43, skipping insertion in model container [2020-09-24 23:36:43,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:36:43" (3/3) ... [2020-09-24 23:36:43,539 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2020-09-24 23:36:43,551 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:36:43,567 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:36:43,591 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:36:43,631 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:36:43,632 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:36:43,632 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:36:43,633 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:36:43,633 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:36:43,634 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:36:43,635 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:36:43,635 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:36:43,682 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-24 23:36:43,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 23:36:43,720 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:36:43,723 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 23:36:43,724 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:36:43,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:36:43,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1409886201, now seen corresponding path program 1 times [2020-09-24 23:36:43,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:36:43,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301534205] [2020-09-24 23:36:43,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:36:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:44,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:44,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:46,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:49,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:49,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 23:36:49,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:36:49,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-24 23:36:49,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:49,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:36:49,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:36:49,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 23:36:49,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:36:49,662 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:36:49,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:36:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:49,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:49,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:49,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:36:49,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:49,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-24 23:36:49,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:49,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:49,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:49,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:36:49,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:50,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:36:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:50,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:50,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:50,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:50,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:50,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:36:50,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:50,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:50,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:50,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:50,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:50,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:36:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:50,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:50,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:50,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:50,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:50,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:36:50,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:50,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:50,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:50,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:50,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:50,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:36:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:50,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:50,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:50,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:50,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:50,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:36:50,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:50,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:50,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:50,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:36:50,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:50,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:36:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:50,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:50,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:50,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:50,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:50,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:36:50,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:50,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:50,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:50,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:50,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:50,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 23:36:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:50,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:50,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:50,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:50,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:50,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:50,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:50,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:50,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:50,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:50,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:36:50,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 23:36:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:50,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:50,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:50,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:50,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:50,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:50,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:50,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:50,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:50,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:50,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:50,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 23:36:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:50,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:50,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:50,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:50,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:50,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:36:50,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:50,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:50,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:50,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:50,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:50,198 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 23:36:50,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [301534205] [2020-09-24 23:36:50,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:36:50,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 23:36:50,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257199491] [2020-09-24 23:36:50,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 23:36:50,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:36:50,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 23:36:50,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 23:36:50,232 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 4 states. [2020-09-24 23:36:50,865 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:36:53,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:36:53,766 INFO L93 Difference]: Finished difference Result 833 states and 1006 transitions. [2020-09-24 23:36:53,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:36:53,776 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-24 23:36:53,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:36:53,807 INFO L225 Difference]: With dead ends: 833 [2020-09-24 23:36:53,807 INFO L226 Difference]: Without dead ends: 582 [2020-09-24 23:36:53,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:36:53,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2020-09-24 23:36:53,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 502. [2020-09-24 23:36:53,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2020-09-24 23:36:53,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 567 transitions. [2020-09-24 23:36:53,979 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 567 transitions. Word has length 153 [2020-09-24 23:36:53,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:36:53,981 INFO L479 AbstractCegarLoop]: Abstraction has 502 states and 567 transitions. [2020-09-24 23:36:53,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 23:36:53,981 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 567 transitions. [2020-09-24 23:36:53,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 23:36:53,986 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:36:53,986 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 23:36:53,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:36:53,987 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:36:53,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:36:53,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1682778553, now seen corresponding path program 1 times [2020-09-24 23:36:53,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:36:53,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [195642336] [2020-09-24 23:36:53,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:36:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:54,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:54,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:54,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:54,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:54,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:59,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:59,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-24 23:36:59,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:36:59,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-24 23:36:59,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:59,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 23:36:59,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 23:36:59,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 23:36:59,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:59,470 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:36:59,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:36:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:59,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:59,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:59,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:36:59,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:59,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-09-24 23:36:59,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:59,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:59,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 23:36:59,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:59,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:36:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:59,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:59,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:59,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:59,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:59,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:36:59,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:59,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:59,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:59,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:59,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:59,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:36:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:59,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:59,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:59,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:59,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:59,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:59,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:59,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:59,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:59,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:59,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:59,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:36:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:59,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:59,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:59,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:59,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:59,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:36:59,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:59,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:59,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:59,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:36:59,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:59,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:36:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:59,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:59,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:59,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:59,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:59,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:59,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:59,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:59,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:59,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:59,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:59,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 23:36:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:59,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:59,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:59,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:59,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:59,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:36:59,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:36:59,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 23:36:59,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:59,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:36:59,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:36:59,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:36:59,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:59,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:36:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:59,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:59,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:59,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:59,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:36:59,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:36:59,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:36:59,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:59,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:36:59,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:36:59,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 23:36:59,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:59,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:36:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:59,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:59,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:59,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:36:59,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:59,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:36:59,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:59,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:36:59,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:36:59,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:36:59,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:36:59,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:36:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:59,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:59,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:59,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:59,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:59,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:36:59,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:59,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:59,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:59,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:59,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:36:59,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 23:36:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:59,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:59,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:59,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:59,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:59,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:36:59,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:59,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:59,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:59,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:59,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:37:00,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 23:37:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:00,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:00,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:00,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:37:00,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:00,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:37:00,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:00,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:37:00,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:37:00,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:37:00,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:37:00,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 23:37:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:00,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:00,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:00,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:37:00,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:00,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:37:00,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:00,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:37:00,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:37:00,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:37:00,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:37:00,056 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 23:37:00,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [195642336] [2020-09-24 23:37:00,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:37:00,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 23:37:00,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897766366] [2020-09-24 23:37:00,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:37:00,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:37:00,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:37:00,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:37:00,062 INFO L87 Difference]: Start difference. First operand 502 states and 567 transitions. Second operand 7 states. [2020-09-24 23:37:00,585 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:37:02,379 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:37:04,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:37:04,223 INFO L93 Difference]: Finished difference Result 1374 states and 1684 transitions. [2020-09-24 23:37:04,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 23:37:04,224 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-09-24 23:37:04,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:37:04,234 INFO L225 Difference]: With dead ends: 1374 [2020-09-24 23:37:04,234 INFO L226 Difference]: Without dead ends: 982 [2020-09-24 23:37:04,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:37:04,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2020-09-24 23:37:04,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 837. [2020-09-24 23:37:04,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2020-09-24 23:37:04,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 949 transitions. [2020-09-24 23:37:04,390 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 949 transitions. Word has length 172 [2020-09-24 23:37:04,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:37:04,391 INFO L479 AbstractCegarLoop]: Abstraction has 837 states and 949 transitions. [2020-09-24 23:37:04,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:37:04,391 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 949 transitions. [2020-09-24 23:37:04,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 23:37:04,394 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:37:04,394 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 23:37:04,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:37:04,395 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:37:04,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:37:04,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1733471064, now seen corresponding path program 1 times [2020-09-24 23:37:04,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:37:04,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484757444] [2020-09-24 23:37:04,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:37:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:04,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:06,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:06,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 23:37:06,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:06,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1967 [2020-09-24 23:37:06,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:06,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:37:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:37:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 23:37:06,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:37:06,715 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:37:06,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:37:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:06,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:06,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:06,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:37:06,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:06,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-24 23:37:06,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:06,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:37:06,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:37:06,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:37:06,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:37:07,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:37:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:07,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:07,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:07,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:37:07,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:07,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:37:07,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:07,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:37:07,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:37:07,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:37:07,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:37:07,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:37:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:07,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:07,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:07,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:37:07,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:07,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:37:07,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:07,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:37:07,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:37:07,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:37:07,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:37:07,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:37:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:07,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:07,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:07,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:37:07,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:07,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:37:07,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:07,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:37:07,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:37:07,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:37:07,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:37:07,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:37:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:07,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:07,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:07,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:37:07,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:07,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:37:07,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:07,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:37:07,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:37:07,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:37:07,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:37:07,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 23:37:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:07,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:07,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:07,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:37:07,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:07,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:37:07,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:07,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:37:07,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:37:07,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:37:07,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:37:07,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 23:37:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:07,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:07,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:07,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:37:07,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:07,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:37:07,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:07,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:37:07,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:37:07,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:37:07,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:37:07,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 23:37:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:07,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:07,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:07,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:37:07,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:07,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:37:07,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:07,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:37:07,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:37:07,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:37:07,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:37:07,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 23:37:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:07,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:07,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:07,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:37:07,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:07,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:37:07,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:37:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:37:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:37:07,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:37:07,189 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 23:37:07,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484757444] [2020-09-24 23:37:07,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:37:07,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:37:07,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362854072] [2020-09-24 23:37:07,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:37:07,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:37:07,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:37:07,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:37:07,192 INFO L87 Difference]: Start difference. First operand 837 states and 949 transitions. Second operand 9 states. [2020-09-24 23:37:07,644 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:37:09,291 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:37:09,890 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 23:37:10,276 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:37:10,636 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:37:10,905 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:37:11,236 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:37:11,524 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:37:13,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:37:13,753 INFO L93 Difference]: Finished difference Result 2148 states and 2599 transitions. [2020-09-24 23:37:13,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 23:37:13,754 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-24 23:37:13,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:37:13,764 INFO L225 Difference]: With dead ends: 2148 [2020-09-24 23:37:13,764 INFO L226 Difference]: Without dead ends: 1421 [2020-09-24 23:37:13,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 23:37:13,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2020-09-24 23:37:13,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1295. [2020-09-24 23:37:13,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1295 states. [2020-09-24 23:37:13,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1499 transitions. [2020-09-24 23:37:13,952 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1499 transitions. Word has length 172 [2020-09-24 23:37:13,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:37:13,953 INFO L479 AbstractCegarLoop]: Abstraction has 1295 states and 1499 transitions. [2020-09-24 23:37:13,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:37:13,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1499 transitions. [2020-09-24 23:37:13,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 23:37:13,957 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:37:13,958 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 23:37:13,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:37:13,958 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:37:13,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:37:13,959 INFO L82 PathProgramCache]: Analyzing trace with hash 102633961, now seen corresponding path program 1 times [2020-09-24 23:37:13,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:37:13,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1614438546] [2020-09-24 23:37:13,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:37:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 23:37:14,030 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 23:37:14,030 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 23:37:14,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:37:14,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 11:37:14 BoogieIcfgContainer [2020-09-24 23:37:14,074 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 23:37:14,076 INFO L168 Benchmark]: Toolchain (without parser) took 32878.97 ms. Allocated memory was 139.5 MB in the beginning and 632.3 MB in the end (delta: 492.8 MB). Free memory was 101.6 MB in the beginning and 310.4 MB in the end (delta: -208.9 MB). Peak memory consumption was 284.0 MB. Max. memory is 7.1 GB. [2020-09-24 23:37:14,077 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 23:37:14,078 INFO L168 Benchmark]: CACSL2BoogieTranslator took 733.03 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.9 MB in the beginning and 172.4 MB in the end (delta: -71.5 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. [2020-09-24 23:37:14,080 INFO L168 Benchmark]: Boogie Preprocessor took 115.96 ms. Allocated memory is still 203.4 MB. Free memory was 172.4 MB in the beginning and 167.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-09-24 23:37:14,087 INFO L168 Benchmark]: RCFGBuilder took 1474.52 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 167.5 MB in the beginning and 171.7 MB in the end (delta: -4.2 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. [2020-09-24 23:37:14,088 INFO L168 Benchmark]: TraceAbstraction took 30546.87 ms. Allocated memory was 236.5 MB in the beginning and 632.3 MB in the end (delta: 395.8 MB). Free memory was 171.7 MB in the beginning and 310.4 MB in the end (delta: -138.7 MB). Peak memory consumption was 257.1 MB. Max. memory is 7.1 GB. [2020-09-24 23:37:14,099 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 733.03 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.9 MB in the beginning and 172.4 MB in the end (delta: -71.5 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.96 ms. Allocated memory is still 203.4 MB. Free memory was 172.4 MB in the beginning and 167.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1474.52 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 167.5 MB in the beginning and 171.7 MB in the end (delta: -4.2 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30546.87 ms. Allocated memory was 236.5 MB in the beginning and 632.3 MB in the end (delta: 395.8 MB). Free memory was 171.7 MB in the beginning and 310.4 MB in the end (delta: -138.7 MB). Peak memory consumption was 257.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 996]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L90] int pumpRunning = 0; [L91] int systemActive = 1; [L427] int waterLevel = 1; [L428] int methaneLevelCritical = 0; [L699] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L896] int cleanupTimeShifts = 4; [L969] int retValue_acc ; [L970] int tmp ; [L974] FCALL select_helpers() [L975] FCALL select_features() [L976] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L976] RET, EXPR valid_product() [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) [L980] FCALL setup() [L981] CALL runTest() [L963] CALL test() [L358] int splverifierCounter ; [L359] int tmp ; [L360] int tmp___0 ; [L361] int tmp___1 ; [L362] int tmp___2 ; [L365] splverifierCounter = 0 [L367] COND TRUE 1 [L369] COND TRUE splverifierCounter < 4 [L375] tmp = __VERIFIER_nondet_int() [L377] COND TRUE \read(tmp) [L379] CALL waterRise() [L445] COND TRUE waterLevel < 2 [L446] waterLevel = waterLevel + 1 [L379] RET waterRise() [L385] tmp___0 = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp___0)) [L395] tmp___2 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___2)) [L403] tmp___1 = __VERIFIER_nondet_int() [L405] COND TRUE \read(tmp___1) [L407] CALL stopSystem() [L334] COND FALSE !(\read(pumpRunning)) [L341] systemActive = 0 [L407] RET stopSystem() [L414] CALL timeShift() [L98] COND FALSE !(\read(pumpRunning)) [L105] COND FALSE !(\read(systemActive)) [L113] CALL __utac_acc__Specification3_spec__1() [L1002] int tmp ; [L1003] int tmp___0 ; [L1004] int tmp___1 ; [L1008] CALL, EXPR isMethaneLevelCritical() [L466] int retValue_acc ; [L469] retValue_acc = methaneLevelCritical [L470] return (retValue_acc); [L1008] RET, EXPR isMethaneLevelCritical() [L1008] tmp = isMethaneLevelCritical() [L1010] COND FALSE !(\read(tmp)) [L1014] CALL, EXPR getWaterLevel() [L498] int retValue_acc ; [L501] retValue_acc = waterLevel [L502] return (retValue_acc); [L1014] RET, EXPR getWaterLevel() [L1014] tmp___0 = getWaterLevel() [L1016] COND TRUE tmp___0 == 2 [L1018] CALL, EXPR isPumpRunning() [L248] int retValue_acc ; [L251] retValue_acc = pumpRunning [L252] return (retValue_acc); [L1018] RET, EXPR isPumpRunning() [L1018] tmp___1 = isPumpRunning() [L1020] COND FALSE !(\read(tmp___1)) [L1024] CALL __automaton_fail() [L996] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 674 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 14.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1037 SDtfs, 1709 SDslu, 1148 SDs, 0 SdLazy, 3023 SolverSat, 618 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1295occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 351 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 14.7s InterpolantComputationTime, 674 NumberOfCodeBlocks, 674 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 494 ConstructedInterpolants, 0 QuantifiedInterpolants, 224637 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...