/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:51:51,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:51:51,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:51:51,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:51:51,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:51:51,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:51:51,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:51:51,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:51:51,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:51:51,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:51:51,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:51:51,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:51:51,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:51:51,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:51:51,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:51:51,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:51:51,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:51:51,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:51:51,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:51:51,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:51:51,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:51:51,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:51:51,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:51:51,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:51:51,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:51:51,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:51:51,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:51:51,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:51:51,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:51:51,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:51:51,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:51:51,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:51:51,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:51:51,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:51:51,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:51:51,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:51:51,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:51:51,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:51:51,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:51:51,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:51:51,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:51:51,731 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 10:51:51,756 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:51:51,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:51:51,758 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:51:51,758 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:51:51,758 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:51:51,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:51:51,759 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:51:51,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:51:51,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:51:51,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:51:51,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:51:51,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:51:51,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:51:51,760 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:51:51,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:51:51,761 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:51:51,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:51:51,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:51:51,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:51:51,762 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:51:51,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:51:51,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:51:51,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:51:51,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:51:51,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:51:51,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:51:51,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:51:51,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:51:51,763 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:51:51,764 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 10:51:52,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:51:52,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:51:52,262 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:51:52,264 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:51:52,265 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:51:52,266 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product61.cil.c [2020-09-25 10:51:52,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c1b42f46/4b06b2599a40459c97d12ee1ef7aa88e/FLAGc5015f3b0 [2020-09-25 10:51:53,038 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:51:53,039 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product61.cil.c [2020-09-25 10:51:53,066 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c1b42f46/4b06b2599a40459c97d12ee1ef7aa88e/FLAGc5015f3b0 [2020-09-25 10:51:53,262 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c1b42f46/4b06b2599a40459c97d12ee1ef7aa88e [2020-09-25 10:51:53,279 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:51:53,286 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:51:53,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:51:53,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:51:53,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:51:53,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:51:53" (1/1) ... [2020-09-25 10:51:53,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:53, skipping insertion in model container [2020-09-25 10:51:53,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:51:53" (1/1) ... [2020-09-25 10:51:53,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:51:53,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:51:53,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:51:53,766 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:51:53,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:51:54,033 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:51:54,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:54 WrapperNode [2020-09-25 10:51:54,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:51:54,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:51:54,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:51:54,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:51:54,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:54" (1/1) ... [2020-09-25 10:51:54,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:54" (1/1) ... [2020-09-25 10:51:54,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:54" (1/1) ... [2020-09-25 10:51:54,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:54" (1/1) ... [2020-09-25 10:51:54,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:54" (1/1) ... [2020-09-25 10:51:54,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:54" (1/1) ... [2020-09-25 10:51:54,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:54" (1/1) ... [2020-09-25 10:51:54,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:51:54,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:51:54,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:51:54,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:51:54,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:51:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:51:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:51:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:51:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:51:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:51:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:51:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:51:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:51:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:51:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:51:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:51:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:51:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:51:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 10:51:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 10:51:54,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:51:54,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 10:51:54,233 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:51:54,233 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:51:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:51:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:51:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:51:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:51:54,236 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:51:54,236 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 10:51:54,236 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 10:51:54,236 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:51:54,236 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 10:51:54,237 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:51:54,237 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:51:54,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:51:54,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:51:54,237 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:51:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 10:51:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 10:51:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:51:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:51:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:51:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:51:54,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:51:54,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:51:54,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:51:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:51:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:51:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:51:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:51:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:51:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:51:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:51:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:51:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:51:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:51:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:51:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:51:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:51:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 10:51:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 10:51:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:51:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:51:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:51:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 10:51:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:51:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:51:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:51:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:51:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:51:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:51:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:51:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:51:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:51:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:51:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:51:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:51:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 10:51:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 10:51:54,245 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 10:51:54,245 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 10:51:54,245 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:51:54,245 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 10:51:54,245 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:51:54,245 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:51:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:51:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:51:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:51:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:51:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:51:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:51:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:51:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:51:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:51:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:51:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:51:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:51:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:51:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:51:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:51:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:51:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:51:55,497 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:51:55,498 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:51:55,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:51:55 BoogieIcfgContainer [2020-09-25 10:51:55,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:51:55,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:51:55,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:51:55,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:51:55,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:51:53" (1/3) ... [2020-09-25 10:51:55,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7939affa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:51:55, skipping insertion in model container [2020-09-25 10:51:55,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:54" (2/3) ... [2020-09-25 10:51:55,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7939affa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:51:55, skipping insertion in model container [2020-09-25 10:51:55,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:51:55" (3/3) ... [2020-09-25 10:51:55,516 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product61.cil.c [2020-09-25 10:51:55,528 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:51:55,539 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:51:55,561 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:51:55,597 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:51:55,598 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:51:55,598 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:51:55,598 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:51:55,598 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:51:55,598 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:51:55,598 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:51:55,599 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:51:55,643 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states. [2020-09-25 10:51:55,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 10:51:55,681 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:51:55,685 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] [2020-09-25 10:51:55,686 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:51:55,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:51:55,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1532916738, now seen corresponding path program 1 times [2020-09-25 10:51:55,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:51:55,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898722346] [2020-09-25 10:51:55,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:51:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:56,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:56,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:57,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:58,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:58,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:01,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:01,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 10:52:01,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:52:01,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 10:52:01,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:01,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:01,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:52:01,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 10:52:01,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 10:52:01,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 10:52:01,651 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:52:01,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:52:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:01,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:01,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:01,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:52:01,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:01,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-09-25 10:52:01,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:01,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:01,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 10:52:01,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:02,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:52:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:02,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:02,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:02,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:02,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:02,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:02,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:02,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:02,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:02,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:02,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:02,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:02,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:52:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:02,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:02,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:02,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:02,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:02,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:52:02,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:02,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:02,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:02,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:02,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:02,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:02,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:52:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:02,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:02,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:02,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:02,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:02,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:52:02,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:02,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:52:02,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:02,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:52:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:02,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:02,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:02,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:02,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:02,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:02,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:02,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:02,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:02,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:02,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:02,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:52:02,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:52:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:02,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:02,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:02,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:02,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:02,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:52:02,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:02,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:52:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:52:02,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:02,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 10:52:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:02,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:02,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:02,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:02,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:02,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:02,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:02,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:02,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:02,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:52:02,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:02,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:02,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:52:02,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [898722346] [2020-09-25 10:52:02,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:52:02,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:52:02,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153783960] [2020-09-25 10:52:02,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:52:02,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:52:02,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:52:02,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:52:02,226 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 8 states. [2020-09-25 10:52:02,924 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:52:04,073 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:04,358 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:04,670 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:05,068 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:05,397 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:06,153 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:52:06,494 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:07,074 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:52:09,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:52:09,051 INFO L93 Difference]: Finished difference Result 755 states and 918 transitions. [2020-09-25 10:52:09,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 10:52:09,055 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 10:52:09,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:52:09,079 INFO L225 Difference]: With dead ends: 755 [2020-09-25 10:52:09,080 INFO L226 Difference]: Without dead ends: 508 [2020-09-25 10:52:09,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 10:52:09,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-09-25 10:52:09,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 445. [2020-09-25 10:52:09,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2020-09-25 10:52:09,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 499 transitions. [2020-09-25 10:52:09,286 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 499 transitions. Word has length 142 [2020-09-25 10:52:09,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:52:09,287 INFO L479 AbstractCegarLoop]: Abstraction has 445 states and 499 transitions. [2020-09-25 10:52:09,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:52:09,287 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 499 transitions. [2020-09-25 10:52:09,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 10:52:09,293 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:52:09,295 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] [2020-09-25 10:52:09,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:52:09,296 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:52:09,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:52:09,297 INFO L82 PathProgramCache]: Analyzing trace with hash -198344158, now seen corresponding path program 1 times [2020-09-25 10:52:09,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:52:09,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1193746113] [2020-09-25 10:52:09,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:52:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:09,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:09,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:09,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:13,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:13,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-25 10:52:13,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:52:13,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4103 [2020-09-25 10:52:13,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:13,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:13,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 10:52:13,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 10:52:13,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-09-25 10:52:13,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:13,807 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:52:13,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:52:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:13,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:14,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:14,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:52:14,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:14,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-09-25 10:52:14,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:14,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:14,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:14,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:14,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 10:52:14,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:52:14,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:52:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:14,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:14,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:14,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:14,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:14,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:14,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:14,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:14,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:14,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:14,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:14,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:14,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:52:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:14,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:14,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:14,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:14,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:14,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:14,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:14,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:14,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:14,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:14,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:14,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:14,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:52:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:14,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:14,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:14,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:14,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:14,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:52:14,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:14,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:14,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:14,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:14,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:52:14,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:52:14,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:52:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:14,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:14,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:14,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:14,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:14,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:14,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:14,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:14,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:14,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:14,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:14,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:52:14,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:52:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:14,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:14,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:14,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:52:14,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:14,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:52:14,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:14,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:14,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:14,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:14,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:52:14,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:14,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 10:52:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:14,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:14,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:14,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:14,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:14,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:52:14,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:14,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:14,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:52:14,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:14,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 10:52:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:14,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:14,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:14,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:14,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:14,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:52:14,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:14,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:52:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:52:14,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:14,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:52:14,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1193746113] [2020-09-25 10:52:14,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:52:14,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 10:52:14,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410399508] [2020-09-25 10:52:14,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 10:52:14,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:52:14,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 10:52:14,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:52:14,473 INFO L87 Difference]: Start difference. First operand 445 states and 499 transitions. Second operand 9 states. [2020-09-25 10:52:14,972 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:52:16,061 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:16,396 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:16,710 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:17,059 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:17,361 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:18,643 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:52:18,962 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:19,308 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:52:20,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:52:20,458 INFO L93 Difference]: Finished difference Result 1073 states and 1302 transitions. [2020-09-25 10:52:20,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 10:52:20,459 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2020-09-25 10:52:20,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:52:20,469 INFO L225 Difference]: With dead ends: 1073 [2020-09-25 10:52:20,469 INFO L226 Difference]: Without dead ends: 738 [2020-09-25 10:52:20,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 10:52:20,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2020-09-25 10:52:20,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 651. [2020-09-25 10:52:20,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2020-09-25 10:52:20,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 755 transitions. [2020-09-25 10:52:20,601 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 755 transitions. Word has length 157 [2020-09-25 10:52:20,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:52:20,602 INFO L479 AbstractCegarLoop]: Abstraction has 651 states and 755 transitions. [2020-09-25 10:52:20,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 10:52:20,602 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 755 transitions. [2020-09-25 10:52:20,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-25 10:52:20,606 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:52:20,606 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:52:20,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:52:20,607 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:52:20,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:52:20,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1400692561, now seen corresponding path program 1 times [2020-09-25 10:52:20,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:52:20,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865607250] [2020-09-25 10:52:20,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:52:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:20,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:20,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:25,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:25,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:25,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-09-25 10:52:25,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:52:25,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 10:52:25,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:25,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:25,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:52:25,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-25 10:52:25,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 10:52:25,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:52:26,014 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:52:26,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:52:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:26,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:26,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:26,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:52:26,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:26,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 10:52:26,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:26,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:26,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:26,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:26,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:26,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:26,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:52:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:26,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:26,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:26,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:26,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:26,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:52:26,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:26,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:26,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:26,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:26,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:26,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:52:26,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:52:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:26,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:26,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:26,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:26,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:26,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:52:26,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:26,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:26,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:26,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:26,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:26,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:26,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:52:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:26,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:26,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:26,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:26,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:26,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:26,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:26,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:26,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:26,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:26,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:26,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:26,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:52:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:26,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:26,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:26,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:26,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:26,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:52:26,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:26,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:26,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:26,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:26,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:26,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:52:26,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:52:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:26,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:26,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:26,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:52:26,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:26,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:52:26,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:26,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:26,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:26,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:26,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 10:52:26,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:52:26,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 10:52:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:26,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:26,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:26,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:26,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 10:52:26,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:52:26,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 628 [2020-09-25 10:52:26,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:26,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:26,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:52:26,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 10:52:26,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:52:26,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:26,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:52:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:26,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:26,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:27,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:27,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 10:52:27,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:52:27,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 992 [2020-09-25 10:52:27,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:27,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:27,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:52:27,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:27,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 10:52:27,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:27,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:52:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:27,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:27,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:28,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:28,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 10:52:28,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:52:28,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 749 [2020-09-25 10:52:28,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:28,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:28,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:52:28,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:28,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 10:52:28,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:28,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:52:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:28,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:28,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:28,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:52:28,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:28,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:52:28,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:28,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:28,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:28,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:28,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:28,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:28,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:52:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:28,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:28,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:28,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:52:28,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:28,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:28,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:28,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:28,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:28,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:28,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:28,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:28,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 10:52:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:28,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:28,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:28,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 10:52:28,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:28,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 10:52:28,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:28,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:28,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:52:28,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:28,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 10:52:28,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:28,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:52:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:28,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:28,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:28,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:52:28,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:28,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:52:28,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:28,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:28,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:52:28,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:28,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 10:52:28,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:28,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:52:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:28,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:28,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:28,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:28,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:28,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:52:28,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:28,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:28,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:52:28,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:28,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:52:28,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:28,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 10:52:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:28,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:28,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:28,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:52:28,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:28,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:52:28,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:28,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:28,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:28,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:28,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:52:28,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:28,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-25 10:52:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:28,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:28,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:28,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:28,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:28,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:52:28,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:28,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:28,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:28,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:52:28,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:28,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:28,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-09-25 10:52:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:28,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:28,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:28,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:28,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:28,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:52:28,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:28,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:28,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:28,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:52:28,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:28,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:28,992 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 10:52:28,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865607250] [2020-09-25 10:52:28,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:52:28,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 10:52:28,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685801620] [2020-09-25 10:52:28,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 10:52:28,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:52:28,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 10:52:28,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-25 10:52:28,996 INFO L87 Difference]: Start difference. First operand 651 states and 755 transitions. Second operand 14 states. [2020-09-25 10:52:29,571 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:52:30,767 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:52:31,162 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:31,464 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:31,930 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:32,273 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:34,205 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:34,534 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:34,845 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:35,169 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:35,501 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:35,828 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:36,144 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:37,152 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:37,466 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:37,757 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:38,053 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:38,362 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:38,697 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:38,987 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:40,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:52:40,489 INFO L93 Difference]: Finished difference Result 1340 states and 1647 transitions. [2020-09-25 10:52:40,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-25 10:52:40,490 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 222 [2020-09-25 10:52:40,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:52:40,499 INFO L225 Difference]: With dead ends: 1340 [2020-09-25 10:52:40,500 INFO L226 Difference]: Without dead ends: 776 [2020-09-25 10:52:40,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=328, Invalid=1394, Unknown=0, NotChecked=0, Total=1722 [2020-09-25 10:52:40,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-09-25 10:52:40,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 624. [2020-09-25 10:52:40,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2020-09-25 10:52:40,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 705 transitions. [2020-09-25 10:52:40,588 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 705 transitions. Word has length 222 [2020-09-25 10:52:40,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:52:40,589 INFO L479 AbstractCegarLoop]: Abstraction has 624 states and 705 transitions. [2020-09-25 10:52:40,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 10:52:40,589 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 705 transitions. [2020-09-25 10:52:40,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-09-25 10:52:40,594 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:52:40,595 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:52:40,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:52:40,595 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:52:40,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:52:40,596 INFO L82 PathProgramCache]: Analyzing trace with hash 2002748721, now seen corresponding path program 1 times [2020-09-25 10:52:40,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:52:40,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [325916093] [2020-09-25 10:52:40,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:52:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:40,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:40,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:41,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:41,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking...