/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:09:35,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:09:35,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:09:35,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:09:35,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:09:35,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:09:35,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:09:35,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:09:35,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:09:35,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:09:35,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:09:35,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:09:35,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:09:35,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:09:35,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:09:35,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:09:35,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:09:35,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:09:35,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:09:35,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:09:35,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:09:35,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:09:35,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:09:35,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:09:35,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:09:35,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:09:35,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:09:35,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:09:35,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:09:35,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:09:35,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:09:35,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:09:35,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:09:35,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:09:35,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:09:35,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:09:35,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:09:35,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:09:35,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:09:35,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:09:36,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:09:36,001 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:09:36,042 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:09:36,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:09:36,044 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:09:36,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:09:36,044 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:09:36,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:09:36,045 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:09:36,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:09:36,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:09:36,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:09:36,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:09:36,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:09:36,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:09:36,046 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:09:36,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:09:36,046 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:09:36,047 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:09:36,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:09:36,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:09:36,047 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:09:36,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:09:36,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:09:36,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:09:36,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:09:36,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:09:36,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:09:36,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:09:36,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:09:36,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:09:36,049 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:09:36,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:09:36,562 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:09:36,567 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:09:36,569 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:09:36,570 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:09:36,571 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-09-24 19:09:36,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42b125c0e/609fe576815949fca744513e14bd2184/FLAG2a269e240 [2020-09-24 19:09:37,274 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:09:37,275 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-09-24 19:09:37,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42b125c0e/609fe576815949fca744513e14bd2184/FLAG2a269e240 [2020-09-24 19:09:37,550 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42b125c0e/609fe576815949fca744513e14bd2184 [2020-09-24 19:09:37,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:09:37,571 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:09:37,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:09:37,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:09:37,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:09:37,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:09:37" (1/1) ... [2020-09-24 19:09:37,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1392f113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:09:37, skipping insertion in model container [2020-09-24 19:09:37,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:09:37" (1/1) ... [2020-09-24 19:09:37,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:09:37,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:09:38,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:09:38,216 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:09:38,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:09:38,434 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:09:38,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:09:38 WrapperNode [2020-09-24 19:09:38,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:09:38,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:09:38,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:09:38,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:09:38,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:09:38" (1/1) ... [2020-09-24 19:09:38,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:09:38" (1/1) ... [2020-09-24 19:09:38,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:09:38" (1/1) ... [2020-09-24 19:09:38,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:09:38" (1/1) ... [2020-09-24 19:09:38,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:09:38" (1/1) ... [2020-09-24 19:09:38,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:09:38" (1/1) ... [2020-09-24 19:09:38,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:09:38" (1/1) ... [2020-09-24 19:09:38,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:09:38,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:09:38,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:09:38,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:09:38,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:09:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:09:38,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:09:38,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:09:38,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:09:38,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:09:38,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:09:38,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:09:38,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:09:38,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:09:38,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:09:38,619 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:09:38,619 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:09:38,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:09:38,619 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:09:38,619 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:09:38,619 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:09:38,620 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:09:38,620 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2020-09-24 19:09:38,620 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2020-09-24 19:09:38,620 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2020-09-24 19:09:38,621 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2020-09-24 19:09:38,621 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2020-09-24 19:09:38,621 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2020-09-24 19:09:38,621 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:09:38,621 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2020-09-24 19:09:38,622 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2020-09-24 19:09:38,622 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:09:38,622 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:09:38,622 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:09:38,622 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:09:38,622 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:09:38,623 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:09:38,623 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 19:09:38,623 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 19:09:38,623 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 19:09:38,623 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:09:38,623 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:09:38,624 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:09:38,624 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:09:38,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 19:09:38,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:09:38,624 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:09:38,625 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:09:38,625 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:09:38,625 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:09:38,625 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:09:38,625 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:09:38,625 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:09:38,625 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 19:09:38,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:09:38,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:09:38,626 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:09:38,626 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:09:38,626 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:09:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:09:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:09:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:09:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:09:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:09:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:09:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:09:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:09:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:09:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:09:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:09:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:09:38,629 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:09:38,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:09:38,629 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:09:38,629 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:09:38,629 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:09:38,630 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:09:38,630 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:09:38,630 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:09:38,630 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:09:38,630 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:09:38,630 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:09:38,631 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:09:38,631 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:09:38,631 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:09:38,631 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:09:38,631 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:09:38,631 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 19:09:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 19:09:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:09:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:09:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:09:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:09:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 19:09:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:09:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:09:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:09:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 19:09:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:09:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2020-09-24 19:09:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:09:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2020-09-24 19:09:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2020-09-24 19:09:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 19:09:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2020-09-24 19:09:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2020-09-24 19:09:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:09:38,635 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2020-09-24 19:09:38,635 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2020-09-24 19:09:38,635 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2020-09-24 19:09:38,635 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:09:38,635 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:09:38,635 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:09:38,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:09:38,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:09:38,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:09:39,908 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:09:39,909 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:09:39,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:09:39 BoogieIcfgContainer [2020-09-24 19:09:39,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:09:39,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:09:39,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:09:39,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:09:39,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:09:37" (1/3) ... [2020-09-24 19:09:39,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4c0656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:09:39, skipping insertion in model container [2020-09-24 19:09:39,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:09:38" (2/3) ... [2020-09-24 19:09:39,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4c0656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:09:39, skipping insertion in model container [2020-09-24 19:09:39,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:09:39" (3/3) ... [2020-09-24 19:09:39,926 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c [2020-09-24 19:09:39,939 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:09:39,951 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:09:39,976 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:09:40,013 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:09:40,013 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:09:40,014 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:09:40,014 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:09:40,014 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:09:40,014 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:09:40,014 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:09:40,015 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:09:40,051 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states. [2020-09-24 19:09:40,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-24 19:09:40,076 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:09:40,078 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:09:40,079 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:09:40,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:09:40,088 INFO L82 PathProgramCache]: Analyzing trace with hash 103979020, now seen corresponding path program 1 times [2020-09-24 19:09:40,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:09:40,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753176810] [2020-09-24 19:09:40,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:40,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:40,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:41,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:41,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-24 19:09:41,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:09:41,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1030 [2020-09-24 19:09:41,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:41,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:41,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-09-24 19:09:41,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:41,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:09:42,107 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 19:09:42,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:42,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:42,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:42,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 19:09:42,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:42,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-24 19:09:42,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:42,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:42,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:42,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:42,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:42,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 19:09:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:42,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:42,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:42,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:09:42,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:42,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:42,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:42,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:42,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:42,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:42,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:42,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 19:09:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:42,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:42,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:42,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 19:09:42,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:42,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 19:09:42,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:42,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:42,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:42,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:42,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:42,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:09:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:42,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:42,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:42,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:09:42,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:42,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:42,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:42,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:42,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:42,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:42,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:42,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 19:09:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:42,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:42,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:42,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:09:42,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:42,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:42,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:42,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:42,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:42,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:42,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:42,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 19:09:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:42,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:42,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:42,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:09:42,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:42,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:42,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:42,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:42,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:42,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:42,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:42,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 19:09:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:42,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:42,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:42,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:09:42,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:42,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:42,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:42,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:42,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:42,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:42,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:42,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 19:09:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:42,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:42,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:42,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:09:42,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:42,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:42,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:42,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:42,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 19:09:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:42,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:42,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:42,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:09:42,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:42,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:42,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:42,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:42,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:42,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:42,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:42,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 19:09:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:42,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:42,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:42,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:42,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:42,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:42,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:42,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:42,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:42,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:42,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:42,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 19:09:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:42,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:42,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:42,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:42,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:42,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:42,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:42,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:42,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:42,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:42,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:42,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-24 19:09:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:42,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:42,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:42,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:42,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:42,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:42,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:42,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:42,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-09-24 19:09:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:42,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:42,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:42,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:42,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:42,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:42,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:42,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:42,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:42,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:42,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:42,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-09-24 19:09:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:42,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:42,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:42,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:42,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:42,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:42,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:42,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:42,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:42,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:42,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:42,663 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-24 19:09:42,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753176810] [2020-09-24 19:09:42,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:09:42,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:09:42,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292585789] [2020-09-24 19:09:42,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:09:42,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:09:42,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:09:42,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:09:42,696 INFO L87 Difference]: Start difference. First operand 426 states. Second operand 5 states. [2020-09-24 19:09:45,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:09:45,514 INFO L93 Difference]: Finished difference Result 688 states and 831 transitions. [2020-09-24 19:09:45,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:09:45,516 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2020-09-24 19:09:45,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:09:45,551 INFO L225 Difference]: With dead ends: 688 [2020-09-24 19:09:45,551 INFO L226 Difference]: Without dead ends: 433 [2020-09-24 19:09:45,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:09:45,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-09-24 19:09:45,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 375. [2020-09-24 19:09:45,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-24 19:09:45,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 422 transitions. [2020-09-24 19:09:45,710 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 422 transitions. Word has length 235 [2020-09-24 19:09:45,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:09:45,711 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 422 transitions. [2020-09-24 19:09:45,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:09:45,712 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 422 transitions. [2020-09-24 19:09:45,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-09-24 19:09:45,720 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:09:45,721 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:09:45,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:09:45,721 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:09:45,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:09:45,722 INFO L82 PathProgramCache]: Analyzing trace with hash 820894340, now seen corresponding path program 1 times [2020-09-24 19:09:45,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:09:45,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047204683] [2020-09-24 19:09:45,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:45,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:46,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:46,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:46,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-24 19:09:46,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:09:46,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-09-24 19:09:46,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:46,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:46,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-24 19:09:46,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:09:46,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:47,229 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 19:09:47,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:47,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:47,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:47,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 19:09:47,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:47,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-24 19:09:47,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:47,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:47,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:47,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:47,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:47,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 19:09:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:47,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:47,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:47,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:09:47,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:47,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:47,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:47,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:47,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:47,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:47,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:47,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 19:09:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:47,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:47,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:47,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 19:09:47,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:47,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 19:09:47,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:47,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:47,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:47,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:47,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:47,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:09:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:47,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:47,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:47,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:09:47,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:47,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:47,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:47,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:47,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 19:09:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:47,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:47,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:47,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:09:47,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:47,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:47,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:47,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:47,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:47,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:47,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:47,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 19:09:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:47,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:47,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:47,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:09:47,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:47,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:47,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:47,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:47,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:47,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:47,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:47,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 19:09:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:47,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:47,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:47,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:09:47,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:47,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:47,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:47,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:47,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:47,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:47,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:47,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 19:09:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:47,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:47,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:47,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:09:47,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:47,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:47,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:47,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:47,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:47,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:47,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:47,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 19:09:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:47,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:47,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:47,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:09:47,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:47,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:47,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:47,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:47,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:47,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:47,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:47,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 19:09:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:47,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:47,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:47,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:47,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:47,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:47,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:47,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:47,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:47,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:47,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:47,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 19:09:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:47,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:47,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:47,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:47,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:47,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:47,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:47,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:47,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:47,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:47,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:47,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 19:09:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:47,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:47,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:47,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:47,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:47,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:47,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:47,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:47,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:47,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:47,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:47,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-24 19:09:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:47,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:47,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:47,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:47,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:47,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:47,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:47,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:47,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:47,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:47,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:47,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-24 19:09:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:47,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:47,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:47,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:47,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:47,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:47,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:47,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:47,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:47,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:47,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:47,699 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-24 19:09:47,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047204683] [2020-09-24 19:09:47,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:09:47,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:09:47,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183153732] [2020-09-24 19:09:47,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:09:47,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:09:47,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:09:47,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:09:47,704 INFO L87 Difference]: Start difference. First operand 375 states and 422 transitions. Second operand 6 states. [2020-09-24 19:09:48,747 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-24 19:09:50,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:09:50,908 INFO L93 Difference]: Finished difference Result 597 states and 694 transitions. [2020-09-24 19:09:50,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 19:09:50,908 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 236 [2020-09-24 19:09:50,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:09:50,916 INFO L225 Difference]: With dead ends: 597 [2020-09-24 19:09:50,916 INFO L226 Difference]: Without dead ends: 416 [2020-09-24 19:09:50,918 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:09:50,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-24 19:09:50,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 365. [2020-09-24 19:09:50,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-24 19:09:50,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 409 transitions. [2020-09-24 19:09:50,994 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 409 transitions. Word has length 236 [2020-09-24 19:09:50,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:09:50,995 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 409 transitions. [2020-09-24 19:09:50,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:09:50,995 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 409 transitions. [2020-09-24 19:09:50,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-09-24 19:09:50,999 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:09:51,000 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:09:51,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:09:51,000 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:09:51,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:09:51,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1884524892, now seen corresponding path program 1 times [2020-09-24 19:09:51,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:09:51,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608662262] [2020-09-24 19:09:51,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:51,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:51,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:52,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:52,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-09-24 19:09:52,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:09:52,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1066 [2020-09-24 19:09:52,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:52,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:09:52,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-24 19:09:52,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-09-24 19:09:52,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:52,657 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 19:09:52,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:52,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:52,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:52,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 19:09:52,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:52,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-09-24 19:09:52,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:52,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:52,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:52,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-24 19:09:52,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:53,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 19:09:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:53,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:53,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:53,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:09:53,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:53,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:09:53,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:53,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:53,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:53,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:09:53,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:53,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 19:09:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:53,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:53,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:53,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 19:09:53,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:53,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 19:09:53,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:53,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:53,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:53,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-24 19:09:53,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:53,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:09:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:53,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:53,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:53,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:09:53,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:53,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:53,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:53,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:53,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:53,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:53,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:53,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 19:09:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:53,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:53,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:53,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:09:53,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:53,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:53,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:53,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:53,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:53,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:53,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:53,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 19:09:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:53,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:53,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:53,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:09:53,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:53,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:53,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:53,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:53,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:53,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:53,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:53,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 19:09:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:53,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:53,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:53,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:09:53,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:53,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:53,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:53,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:53,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:53,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:53,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:53,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 19:09:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:53,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:53,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:53,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:09:53,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:53,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:09:53,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:53,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:53,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:53,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:53,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:53,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 19:09:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:53,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:53,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:53,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:09:53,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:53,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:53,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:53,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:53,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:53,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:53,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:53,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 19:09:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:53,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:53,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:53,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:53,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:53,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:09:53,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:53,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:53,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:53,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:09:53,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:53,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 19:09:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:53,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:53,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:53,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:53,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:53,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:53,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:53,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:53,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:53,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:09:53,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:53,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-24 19:09:53,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:53,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:53,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:53,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:53,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:53,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:53,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:53,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:53,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:53,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:53,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:53,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-24 19:09:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:53,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:53,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:53,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:53,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:53,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:53,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:53,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:53,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:53,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:53,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:53,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-24 19:09:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:53,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:53,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:53,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:53,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:53,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:53,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:53,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:53,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:53,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:53,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:53,363 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-24 19:09:53,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608662262] [2020-09-24 19:09:53,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:09:53,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:09:53,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046145016] [2020-09-24 19:09:53,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:09:53,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:09:53,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:09:53,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:09:53,368 INFO L87 Difference]: Start difference. First operand 365 states and 409 transitions. Second operand 6 states. [2020-09-24 19:09:54,044 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-24 19:09:57,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:09:57,920 INFO L93 Difference]: Finished difference Result 864 states and 1019 transitions. [2020-09-24 19:09:57,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 19:09:57,921 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 246 [2020-09-24 19:09:57,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:09:57,929 INFO L225 Difference]: With dead ends: 864 [2020-09-24 19:09:57,929 INFO L226 Difference]: Without dead ends: 651 [2020-09-24 19:09:57,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:09:57,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2020-09-24 19:09:58,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 568. [2020-09-24 19:09:58,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2020-09-24 19:09:58,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 652 transitions. [2020-09-24 19:09:58,025 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 652 transitions. Word has length 246 [2020-09-24 19:09:58,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:09:58,026 INFO L479 AbstractCegarLoop]: Abstraction has 568 states and 652 transitions. [2020-09-24 19:09:58,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:09:58,027 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 652 transitions. [2020-09-24 19:09:58,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-09-24 19:09:58,032 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:09:58,032 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:09:58,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:09:58,033 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:09:58,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:09:58,033 INFO L82 PathProgramCache]: Analyzing trace with hash 544054283, now seen corresponding path program 1 times [2020-09-24 19:09:58,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:09:58,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466308363] [2020-09-24 19:09:58,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:58,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:58,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:59,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:59,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-09-24 19:09:59,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:59,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1056 [2020-09-24 19:09:59,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:59,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 19:09:59,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-09-24 19:09:59,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-09-24 19:09:59,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:59,588 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 19:09:59,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:59,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:59,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:59,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 19:09:59,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:59,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-09-24 19:09:59,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:59,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:59,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:59,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-24 19:09:59,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:59,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 19:09:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:59,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:59,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:59,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:09:59,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:59,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:09:59,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:09:59,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:10:00,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 19:10:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:10:00,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:10:00,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:10:00,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 19:10:00,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:10:00,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 19:10:00,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:10:00,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:10:00,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:10:00,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-24 19:10:00,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:10:00,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:10:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:10:00,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:10:00,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:10:00,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:10:00,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:10:00,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:10:00,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:10:00,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:10:00,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:10:00,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:10:00,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:10:00,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 19:10:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:10:00,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:10:00,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:10:00,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:10:00,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:10:00,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:10:00,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:10:00,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:10:00,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:10:00,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:10:00,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:10:00,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 19:10:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:10:00,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:10:00,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:10:00,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:10:00,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:10:00,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:10:00,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:10:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:10:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:10:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:10:00,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:10:00,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 19:10:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:10:00,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:10:00,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:10:00,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:10:00,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:10:00,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:10:00,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:10:00,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:10:00,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:10:00,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:10:00,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:10:00,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 19:10:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:10:00,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:10:00,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:10:00,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:10:00,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:10:00,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:10:00,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:10:00,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:10:00,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:10:00,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:10:00,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:10:00,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 19:10:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:10:00,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:10:00,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:10:00,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:10:00,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:10:00,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:10:00,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:10:00,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:10:00,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:10:00,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:10:00,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:10:00,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 19:10:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:10:00,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:10:00,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:10:00,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:10:00,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:10:00,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:10:00,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:10:00,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:10:00,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:10:00,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:10:00,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:10:00,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 19:10:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:10:00,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:10:00,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:10:00,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:10:00,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:10:00,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:10:00,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:10:00,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:10:00,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:10:00,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:10:00,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:10:00,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-24 19:10:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:10:00,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:10:00,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:10:00,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:10:00,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:10:00,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:10:00,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:10:00,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:10:00,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:10:00,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:10:00,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:10:00,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-09-24 19:10:00,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:10:00,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:10:00,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:10:00,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:10:00,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:10:00,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:10:00,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:10:00,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:10:00,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:10:00,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:10:00,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:10:00,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-09-24 19:10:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:10:00,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:10:00,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:10:00,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:10:00,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:10:00,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:10:00,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:10:00,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:10:00,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:10:00,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:10:00,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:10:00,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-09-24 19:10:00,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:10:00,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:10:00,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:10:00,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:10:00,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:10:00,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:10:00,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:10:00,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:10:00,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:10:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:10:00,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:10:00,343 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-24 19:10:00,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466308363] [2020-09-24 19:10:00,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:10:00,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:10:00,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082673598] [2020-09-24 19:10:00,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:10:00,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:10:00,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:10:00,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:10:00,348 INFO L87 Difference]: Start difference. First operand 568 states and 652 transitions. Second operand 11 states. [2020-09-24 19:10:01,006 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-24 19:10:04,525 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-24 19:10:04,913 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-24 19:10:05,342 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-24 19:10:05,792 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-24 19:10:06,192 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-24 19:10:06,573 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-24 19:10:07,024 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-24 19:10:09,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:10:09,399 INFO L93 Difference]: Finished difference Result 1540 states and 1898 transitions. [2020-09-24 19:10:09,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 19:10:09,400 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 255 [2020-09-24 19:10:09,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:10:09,407 INFO L225 Difference]: With dead ends: 1540 [2020-09-24 19:10:09,408 INFO L226 Difference]: Without dead ends: 1124 [2020-09-24 19:10:09,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702 [2020-09-24 19:10:09,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2020-09-24 19:10:09,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 995. [2020-09-24 19:10:09,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 995 states. [2020-09-24 19:10:09,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1170 transitions. [2020-09-24 19:10:09,568 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1170 transitions. Word has length 255 [2020-09-24 19:10:09,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:10:09,568 INFO L479 AbstractCegarLoop]: Abstraction has 995 states and 1170 transitions. [2020-09-24 19:10:09,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:10:09,569 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1170 transitions. [2020-09-24 19:10:09,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-09-24 19:10:09,575 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:10:09,576 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:10:09,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:10:09,576 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:10:09,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:10:09,577 INFO L82 PathProgramCache]: Analyzing trace with hash -522870887, now seen corresponding path program 1 times [2020-09-24 19:10:09,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:10:09,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [475994158] [2020-09-24 19:10:09,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:10:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 19:10:09,691 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 19:10:09,691 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 19:10:09,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:10:09,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:10:09 BoogieIcfgContainer [2020-09-24 19:10:09,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:10:09,730 INFO L168 Benchmark]: Toolchain (without parser) took 32163.89 ms. Allocated memory was 146.3 MB in the beginning and 720.4 MB in the end (delta: 574.1 MB). Free memory was 101.2 MB in the beginning and 84.8 MB in the end (delta: 16.4 MB). Peak memory consumption was 590.5 MB. Max. memory is 7.1 GB. [2020-09-24 19:10:09,731 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 146.3 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 19:10:09,732 INFO L168 Benchmark]: CACSL2BoogieTranslator took 865.45 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 100.5 MB in the beginning and 165.1 MB in the end (delta: -64.5 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2020-09-24 19:10:09,733 INFO L168 Benchmark]: Boogie Preprocessor took 98.57 ms. Allocated memory is still 202.9 MB. Free memory was 165.1 MB in the beginning and 160.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-09-24 19:10:09,734 INFO L168 Benchmark]: RCFGBuilder took 1380.51 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 160.4 MB in the beginning and 155.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 77.5 MB. Max. memory is 7.1 GB. [2020-09-24 19:10:09,735 INFO L168 Benchmark]: TraceAbstraction took 29810.43 ms. Allocated memory was 235.9 MB in the beginning and 720.4 MB in the end (delta: 484.4 MB). Free memory was 155.7 MB in the beginning and 84.8 MB in the end (delta: 70.9 MB). Peak memory consumption was 555.4 MB. Max. memory is 7.1 GB. [2020-09-24 19:10:09,739 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 146.3 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 865.45 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 100.5 MB in the beginning and 165.1 MB in the end (delta: -64.5 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.57 ms. Allocated memory is still 202.9 MB. Free memory was 165.1 MB in the beginning and 160.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1380.51 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 160.4 MB in the beginning and 155.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 77.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29810.43 ms. Allocated memory was 235.9 MB in the beginning and 720.4 MB in the end (delta: 484.4 MB). Free memory was 155.7 MB in the beginning and 84.8 MB in the end (delta: 70.9 MB). Peak memory consumption was 555.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1022]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L510] int __SELECTED_FEATURE_base ; [L511] int __SELECTED_FEATURE_highWaterSensor ; [L512] int __SELECTED_FEATURE_lowWaterSensor ; [L513] int __SELECTED_FEATURE_methaneQuery ; [L514] int __SELECTED_FEATURE_methaneAlarm ; [L515] int __SELECTED_FEATURE_stopCommand ; [L516] int __SELECTED_FEATURE_startCommand ; [L517] int __GUIDSL_ROOT_PRODUCTION ; [L605] int pumpRunning = 0; [L606] int systemActive = 1; [L1027] int waterLevel = 1; [L1028] int methaneLevelCritical = 0; [L487] int retValue_acc ; [L488] int tmp ; [L492] CALL select_helpers() [L968] __GUIDSL_ROOT_PRODUCTION = 1 [L492] RET select_helpers() [L493] CALL select_features() [L953] __SELECTED_FEATURE_base = 1 [L954] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L954] RET, EXPR select_one() [L954] __SELECTED_FEATURE_highWaterSensor = select_one() [L955] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L955] RET, EXPR select_one() [L955] __SELECTED_FEATURE_lowWaterSensor = select_one() [L956] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L956] RET, EXPR select_one() [L956] __SELECTED_FEATURE_methaneQuery = select_one() [L957] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L957] RET, EXPR select_one() [L957] __SELECTED_FEATURE_methaneAlarm = select_one() [L958] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L958] RET, EXPR select_one() [L958] __SELECTED_FEATURE_stopCommand = select_one() [L959] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L959] RET, EXPR select_one() [L959] __SELECTED_FEATURE_startCommand = select_one() [L493] RET select_features() [L494] CALL, EXPR valid_product() [L973] int retValue_acc ; [L976] retValue_acc = __SELECTED_FEATURE_base [L977] return (retValue_acc); [L494] RET, EXPR valid_product() [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L498] FCALL setup() [L499] CALL runTest() [L478] CALL test() [L521] int splverifierCounter ; [L522] int tmp ; [L523] int tmp___0 ; [L524] int tmp___1 ; [L525] int tmp___2 ; [L528] splverifierCounter = 0 [L530] COND TRUE 1 [L532] COND TRUE splverifierCounter < 4 [L538] tmp = __VERIFIER_nondet_int() [L540] COND TRUE \read(tmp) [L542] CALL waterRise() [L1045] COND TRUE waterLevel < 2 [L1046] waterLevel = waterLevel + 1 [L542] RET waterRise() [L548] tmp___0 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___0)) [L558] tmp___2 = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp___2)) [L570] tmp___1 = __VERIFIER_nondet_int() [L572] COND TRUE \read(tmp___1) [L573] COND TRUE \read(__SELECTED_FEATURE_stopCommand) [L575] CALL stopSystem() [L917] COND FALSE !(\read(pumpRunning)) [L924] systemActive = 0 [L575] RET stopSystem() [L585] CALL timeShift() [L613] COND FALSE !(\read(pumpRunning)) [L620] COND FALSE !(\read(systemActive)) [L628] CALL __utac_acc__Specification3_spec__1() [L985] int tmp ; [L986] int tmp___0 ; [L987] int tmp___1 ; [L991] CALL, EXPR isMethaneLevelCritical() [L1066] int retValue_acc ; [L1069] retValue_acc = methaneLevelCritical [L1070] return (retValue_acc); [L991] RET, EXPR isMethaneLevelCritical() [L991] tmp = isMethaneLevelCritical() [L993] COND FALSE !(\read(tmp)) [L997] CALL, EXPR getWaterLevel() [L1098] int retValue_acc ; [L1101] retValue_acc = waterLevel [L1102] return (retValue_acc); [L997] RET, EXPR getWaterLevel() [L997] tmp___0 = getWaterLevel() [L999] COND TRUE tmp___0 == 2 [L1001] CALL, EXPR isPumpRunning() [L831] int retValue_acc ; [L834] retValue_acc = pumpRunning [L835] return (retValue_acc); [L1001] RET, EXPR isPumpRunning() [L1001] tmp___1 = isPumpRunning() [L1003] COND FALSE !(\read(tmp___1)) [L1007] CALL __automaton_fail() [L1022] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 48 procedures, 730 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.6s, OverallIterations: 5, TraceHistogramMax: 6, AutomataDifference: 19.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1373 SDtfs, 2904 SDslu, 902 SDs, 0 SdLazy, 4015 SolverSat, 1150 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=995occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 321 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 1232 NumberOfCodeBlocks, 1232 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 968 ConstructedInterpolants, 0 QuantifiedInterpolants, 511212 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 480/480 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...