/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 interpolation-heuristic=FIRST --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 15:47:45,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:47:45,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:47:45,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:47:45,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:47:45,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:47:45,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:47:45,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:47:45,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:47:45,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:47:45,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:47:45,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:47:45,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:47:45,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:47:45,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:47:45,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:47:45,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:47:45,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:47:45,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:47:45,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:47:45,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:47:45,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:47:45,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:47:45,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:47:45,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:47:45,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:47:45,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:47:45,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:47:45,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:47:45,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:47:45,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:47:45,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:47:45,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:47:45,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:47:45,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:47:45,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:47:45,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:47:45,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:47:45,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:47:45,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:47:45,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:47:45,374 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 15:47:45,399 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:47:45,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:47:45,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:47:45,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:47:45,401 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:47:45,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:47:45,401 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:47:45,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:47:45,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:47:45,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:47:45,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:47:45,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:47:45,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:47:45,403 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:47:45,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:47:45,403 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:47:45,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:47:45,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:47:45,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:47:45,404 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:47:45,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:47:45,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:47:45,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:47:45,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:47:45,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:47:45,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:47:45,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:47:45,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:47:45,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:47:45,406 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:47:45,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:47:45,904 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:47:45,913 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:47:45,915 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:47:45,917 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:47:45,918 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-09-24 15:47:46,001 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f52be805d/20a96db81f304e91b2c43a80ceb8393d/FLAGd8aa86908 [2020-09-24 15:47:46,653 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:47:46,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-09-24 15:47:46,679 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f52be805d/20a96db81f304e91b2c43a80ceb8393d/FLAGd8aa86908 [2020-09-24 15:47:46,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f52be805d/20a96db81f304e91b2c43a80ceb8393d [2020-09-24 15:47:46,873 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:47:46,879 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:47:46,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:47:46,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:47:46,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:47:46,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:47:46" (1/1) ... [2020-09-24 15:47:46,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:46, skipping insertion in model container [2020-09-24 15:47:46,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:47:46" (1/1) ... [2020-09-24 15:47:46,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:47:46,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:47:47,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:47:47,395 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:47:47,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:47:47,673 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:47:47,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:47 WrapperNode [2020-09-24 15:47:47,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:47:47,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:47:47,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:47:47,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:47:47,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:47" (1/1) ... [2020-09-24 15:47:47,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:47" (1/1) ... [2020-09-24 15:47:47,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:47" (1/1) ... [2020-09-24 15:47:47,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:47" (1/1) ... [2020-09-24 15:47:47,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:47" (1/1) ... [2020-09-24 15:47:47,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:47" (1/1) ... [2020-09-24 15:47:47,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:47" (1/1) ... [2020-09-24 15:47:47,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:47:47,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:47:47,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:47:47,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:47:47,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:47" (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 15:47:47,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:47:47,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:47:47,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:47:47,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:47:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:47:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:47:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:47:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:47:47,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:47:47,905 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:47:47,905 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:47:47,905 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:47:47,905 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:47:47,906 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:47:47,906 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:47:47,907 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:47:47,907 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2020-09-24 15:47:47,907 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2020-09-24 15:47:47,907 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2020-09-24 15:47:47,908 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2020-09-24 15:47:47,908 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2020-09-24 15:47:47,908 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2020-09-24 15:47:47,908 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:47:47,909 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2020-09-24 15:47:47,909 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2020-09-24 15:47:47,910 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:47:47,910 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:47:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:47:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:47:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:47:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 15:47:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 15:47:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 15:47:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 15:47:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:47:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:47:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:47:47,913 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:47:47,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:47:47,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:47:47,913 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:47:47,915 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:47:47,915 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:47:47,915 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:47:47,916 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:47:47,917 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:47:47,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 15:47:47,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 15:47:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:47:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:47:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:47:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:47:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:47:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:47:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:47:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:47:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:47:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:47:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:47:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:47:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:47:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:47:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:47:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:47:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:47:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:47:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:47:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:47:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:47:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:47:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:47:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:47:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:47:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:47:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:47:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:47:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:47:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:47:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:47:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:47:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:47:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 15:47:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 15:47:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:47:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:47:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:47:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 15:47:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 15:47:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:47:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:47:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:47:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:47:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:47:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2020-09-24 15:47:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 15:47:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2020-09-24 15:47:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2020-09-24 15:47:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 15:47:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2020-09-24 15:47:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2020-09-24 15:47:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:47:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2020-09-24 15:47:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2020-09-24 15:47:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2020-09-24 15:47:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:47:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:47:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:47:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:47:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:47:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:47:49,412 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:47:49,412 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:47:49,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:47:49 BoogieIcfgContainer [2020-09-24 15:47:49,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:47:49,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:47:49,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:47:49,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:47:49,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:47:46" (1/3) ... [2020-09-24 15:47:49,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2414447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:47:49, skipping insertion in model container [2020-09-24 15:47:49,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:47" (2/3) ... [2020-09-24 15:47:49,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2414447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:47:49, skipping insertion in model container [2020-09-24 15:47:49,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:47:49" (3/3) ... [2020-09-24 15:47:49,431 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c [2020-09-24 15:47:49,445 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:47:49,457 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:47:49,481 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:47:49,518 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:47:49,518 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:47:49,519 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:47:49,519 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:47:49,519 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:47:49,519 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:47:49,519 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:47:49,519 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:47:49,554 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states. [2020-09-24 15:47:49,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-24 15:47:49,579 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:47:49,581 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 15:47:49,582 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:47:49,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:47:49,591 INFO L82 PathProgramCache]: Analyzing trace with hash 103979020, now seen corresponding path program 1 times [2020-09-24 15:47:49,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:47:49,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469672492] [2020-09-24 15:47:49,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:47:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:50,051 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:50,051 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:50,051 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:50,052 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:50,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-24 15:47:50,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:50,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:47:50,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:50,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:50,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-09-24 15:47:50,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:50,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:50,666 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 15:47:50,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:47:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:50,685 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:50,686 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:50,686 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:50,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:50,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 15:47:50,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:50,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:50,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:50,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:50,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:50,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:50,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:50,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 15:47:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:50,790 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:50,790 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:50,790 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:50,790 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:50,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:47:50,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:50,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:50,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:50,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:50,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:50,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:50,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:47:50,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 15:47:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:50,821 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:50,821 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:50,821 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:50,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:50,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 15:47:50,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:50,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:50,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:50,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:50,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:47:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:50,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:50,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:50,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:50,839 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:50,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:47:50,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:50,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:50,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:50,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:50,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:50,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 15:47:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:50,846 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:50,848 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:50,848 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:50,849 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:50,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:47:50,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:50,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:47:50,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:50,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:50,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:50,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:50,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:50,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:47:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:50,858 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:50,858 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:50,859 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:50,859 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:50,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:47:50,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:50,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:50,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:50,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:50,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:50,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:50,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:50,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 15:47:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:50,877 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:50,878 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:50,878 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:50,878 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:50,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:47:50,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:50,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:47:50,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:50,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:50,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:50,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:50,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:50,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 15:47:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:50,892 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:50,892 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:50,893 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:50,893 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:50,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:47:50,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:50,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:47:50,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:50,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:50,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:50,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:50,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:50,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 15:47:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:50,907 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:50,907 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:50,908 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:50,910 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:50,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:47:50,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:50,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:47:50,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:50,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:50,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:50,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:50,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:50,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 15:47:50,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:50,924 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:50,924 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:50,925 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:50,927 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:50,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:50,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:50,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:47:50,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:50,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:50,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:50,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:50,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:50,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 15:47:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:50,934 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:50,934 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:50,934 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:50,935 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:50,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:47:50,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:50,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:50,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:50,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:50,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-24 15:47:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:50,947 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:50,947 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:50,947 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:50,947 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:50,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:50,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:50,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:47:50,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:50,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:50,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:50,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:50,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:50,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-09-24 15:47:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:50,953 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:50,953 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:50,954 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:50,954 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:50,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:50,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:50,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:50,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:50,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:50,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:50,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:50,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:47:50,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-09-24 15:47:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:50,962 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:50,962 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:50,962 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:50,962 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:50,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:50,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:50,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:50,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:50,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:50,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:50,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:50,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:51,052 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 15:47:51,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469672492] [2020-09-24 15:47:51,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:47:51,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:47:51,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014209266] [2020-09-24 15:47:51,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:47:51,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:47:51,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:47:51,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:47:51,088 INFO L87 Difference]: Start difference. First operand 426 states. Second operand 5 states. [2020-09-24 15:47:53,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:47:53,848 INFO L93 Difference]: Finished difference Result 688 states and 831 transitions. [2020-09-24 15:47:53,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 15:47:53,850 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2020-09-24 15:47:53,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:47:53,875 INFO L225 Difference]: With dead ends: 688 [2020-09-24 15:47:53,875 INFO L226 Difference]: Without dead ends: 433 [2020-09-24 15:47:53,882 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 15:47:53,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-09-24 15:47:54,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 375. [2020-09-24 15:47:54,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-24 15:47:54,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 422 transitions. [2020-09-24 15:47:54,019 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 422 transitions. Word has length 235 [2020-09-24 15:47:54,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:47:54,021 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 422 transitions. [2020-09-24 15:47:54,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:47:54,021 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 422 transitions. [2020-09-24 15:47:54,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-09-24 15:47:54,027 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:47:54,030 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 15:47:54,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:47:54,031 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:47:54,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:47:54,031 INFO L82 PathProgramCache]: Analyzing trace with hash 820894340, now seen corresponding path program 1 times [2020-09-24 15:47:54,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:47:54,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972704285] [2020-09-24 15:47:54,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:47:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:54,137 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:54,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:54,138 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:54,138 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:54,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-24 15:47:54,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:54,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:47:54,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:54,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:54,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-24 15:47:54,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:47:54,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:54,494 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 15:47:54,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:47:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:54,506 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:54,506 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:54,506 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:54,506 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:54,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 15:47:54,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:54,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:54,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:54,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:54,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:54,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:54,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:47:54,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 15:47:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:54,652 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:54,653 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:54,654 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:54,654 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:54,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:47:54,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:54,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:47:54,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:54,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:54,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:54,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:54,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:54,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 15:47:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:54,684 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:54,686 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:54,686 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:54,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:54,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 15:47:54,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:54,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:47:54,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:54,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:54,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:54,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:54,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:54,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:47:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:54,701 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:54,701 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:54,702 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:54,702 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:54,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:47:54,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:54,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:54,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:54,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:54,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:54,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:54,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:54,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 15:47:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:54,707 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:54,708 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:54,708 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:54,708 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:54,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:47:54,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:54,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:54,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:54,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:54,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:54,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:54,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:54,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:47:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:54,714 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:54,714 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:54,715 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:54,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:54,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:47:54,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:54,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:54,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:54,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:54,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:54,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:54,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:54,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 15:47:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:54,723 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:54,723 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:54,723 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:54,724 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:54,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:47:54,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:54,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:54,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:54,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:54,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 15:47:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:54,729 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:54,730 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:54,730 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:54,730 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:54,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:47:54,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:54,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:54,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:54,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:54,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 15:47:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:54,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:54,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:54,738 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:54,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:54,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:47:54,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:54,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:54,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:54,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:54,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:54,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:54,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:54,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 15:47:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:54,748 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:54,748 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:54,748 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:54,749 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:54,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:54,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:54,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:54,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:54,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:54,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:54,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:54,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:54,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 15:47:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:54,754 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:54,754 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:54,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:54,755 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:54,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:47:54,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:54,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:54,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:54,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:54,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 15:47:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:54,762 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:54,762 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:54,762 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:54,762 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:54,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:54,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:54,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:54,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:54,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:54,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:54,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:54,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:47:54,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-24 15:47:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:54,768 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:54,769 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:54,769 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:54,769 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:54,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:54,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:54,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:54,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:54,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:54,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:54,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:54,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:54,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-24 15:47:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:54,774 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:54,774 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:54,775 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:54,777 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:54,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:54,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:54,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:47:54,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:54,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:54,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:54,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:54,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:54,831 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 15:47:54,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972704285] [2020-09-24 15:47:54,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:47:54,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:47:54,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028811508] [2020-09-24 15:47:54,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:47:54,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:47:54,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:47:54,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:47:54,839 INFO L87 Difference]: Start difference. First operand 375 states and 422 transitions. Second operand 6 states. [2020-09-24 15:47:55,906 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-24 15:47:58,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:47:58,139 INFO L93 Difference]: Finished difference Result 597 states and 694 transitions. [2020-09-24 15:47:58,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 15:47:58,140 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 236 [2020-09-24 15:47:58,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:47:58,147 INFO L225 Difference]: With dead ends: 597 [2020-09-24 15:47:58,148 INFO L226 Difference]: Without dead ends: 416 [2020-09-24 15:47:58,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:47:58,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-24 15:47:58,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 365. [2020-09-24 15:47:58,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-24 15:47:58,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 409 transitions. [2020-09-24 15:47:58,208 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 409 transitions. Word has length 236 [2020-09-24 15:47:58,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:47:58,209 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 409 transitions. [2020-09-24 15:47:58,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:47:58,209 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 409 transitions. [2020-09-24 15:47:58,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-09-24 15:47:58,214 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:47:58,214 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 15:47:58,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:47:58,215 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:47:58,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:47:58,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1884524892, now seen corresponding path program 1 times [2020-09-24 15:47:58,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:47:58,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930077845] [2020-09-24 15:47:58,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:47:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:58,330 FATAL L256 erpolLogProxyWrapper]: Difference in size: 6 [2020-09-24 15:47:58,331 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:58,331 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:58,331 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:58,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-09-24 15:47:58,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:58,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 15:47:58,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:58,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:47:58,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-24 15:47:58,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-09-24 15:47:58,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:58,837 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 15:47:58,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:47:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:58,886 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:58,887 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:58,887 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:58,887 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:58,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 15:47:58,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:58,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:47:58,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:58,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:58,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:58,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-24 15:47:58,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:47:58,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 15:47:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:58,986 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:58,989 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:58,990 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:58,990 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:58,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:47:58,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:58,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:47:58,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:58,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:58,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:58,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:47:58,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:47:59,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 15:47:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:59,042 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:59,042 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:59,043 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:59,043 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:59,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 15:47:59,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:59,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:47:59,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:59,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:59,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:59,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-24 15:47:59,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:47:59,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:47:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:59,063 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:59,063 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:59,064 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:59,064 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:59,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:47:59,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:59,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:59,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:59,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:59,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:59,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:59,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:47:59,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 15:47:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:59,072 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:59,073 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:59,073 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:59,073 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:59,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:47:59,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:59,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:59,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:59,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:59,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:59,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:59,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:47:59,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:47:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:59,082 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:59,082 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:59,082 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:59,083 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:59,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:47:59,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:59,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:59,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:59,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:47:59,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 15:47:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:59,091 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:59,091 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:59,092 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:59,092 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:59,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:47:59,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:59,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:59,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:59,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:59,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:59,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:59,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:47:59,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 15:47:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:59,100 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:59,101 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:59,101 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:59,102 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:59,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:47:59,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:59,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:59,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:59,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:59,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:59,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:59,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:47:59,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 15:47:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:59,110 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:59,110 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:59,110 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:59,111 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:59,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:47:59,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:59,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:59,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:59,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:59,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:59,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:59,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:47:59,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 15:47:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:59,127 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:59,128 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:59,128 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:59,128 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:59,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:59,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:59,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:47:59,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:59,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:59,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:59,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:47:59,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:47:59,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 15:47:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:59,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:59,139 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:59,139 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:59,139 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:59,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:47:59,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:59,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:47:59,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:59,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:59,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:59,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:47:59,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:47:59,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-24 15:47:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:59,147 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:59,147 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:59,147 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:59,148 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:59,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:59,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:59,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:59,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:59,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:59,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:59,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:59,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:47:59,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-24 15:47:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:59,155 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:59,156 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:59,156 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:59,156 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:59,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:59,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:59,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:59,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:59,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:59,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:59,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:59,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:47:59,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-24 15:47:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:59,165 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:59,165 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:59,165 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:59,166 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:59,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:59,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:59,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:59,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:59,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:59,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:59,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:59,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:59,276 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 15:47:59,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930077845] [2020-09-24 15:47:59,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:47:59,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:47:59,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212607061] [2020-09-24 15:47:59,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:47:59,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:47:59,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:47:59,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:47:59,279 INFO L87 Difference]: Start difference. First operand 365 states and 409 transitions. Second operand 6 states. [2020-09-24 15:48:00,178 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-24 15:48:04,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:48:04,106 INFO L93 Difference]: Finished difference Result 864 states and 1019 transitions. [2020-09-24 15:48:04,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 15:48:04,107 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 246 [2020-09-24 15:48:04,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:48:04,113 INFO L225 Difference]: With dead ends: 864 [2020-09-24 15:48:04,113 INFO L226 Difference]: Without dead ends: 651 [2020-09-24 15:48:04,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:48:04,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2020-09-24 15:48:04,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 568. [2020-09-24 15:48:04,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2020-09-24 15:48:04,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 652 transitions. [2020-09-24 15:48:04,238 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 652 transitions. Word has length 246 [2020-09-24 15:48:04,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:48:04,241 INFO L479 AbstractCegarLoop]: Abstraction has 568 states and 652 transitions. [2020-09-24 15:48:04,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:48:04,242 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 652 transitions. [2020-09-24 15:48:04,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-09-24 15:48:04,250 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:48:04,250 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 15:48:04,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:48:04,251 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:48:04,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:48:04,251 INFO L82 PathProgramCache]: Analyzing trace with hash 544054283, now seen corresponding path program 1 times [2020-09-24 15:48:04,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:48:04,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1056949492] [2020-09-24 15:48:04,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:48:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:48:04,413 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:48:04,414 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:48:04,414 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:48:04,414 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:48:04,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-09-24 15:48:04,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:48:04,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 15:48:04,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:48:04,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:48:04,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-09-24 15:48:04,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-09-24 15:48:04,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:48:04,877 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 15:48:04,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:48:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:48:04,914 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:48:04,915 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:48:04,915 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:48:04,915 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:48:04,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 15:48:04,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:48:04,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:48:04,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:48:04,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:48:04,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:48:04,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-24 15:48:04,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:48:04,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 15:48:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:48:04,981 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:48:04,982 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:48:04,982 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:48:04,982 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:48:04,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:48:04,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:48:04,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:48:04,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:48:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:48:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:48:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:48:04,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:48:05,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 15:48:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:48:05,021 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:48:05,021 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:48:05,021 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:48:05,021 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:48:05,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 15:48:05,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:48:05,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:48:05,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:48:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:48:05,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:48:05,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-24 15:48:05,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:48:05,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:48:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:48:05,035 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:48:05,035 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:48:05,035 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:48:05,036 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:48:05,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:48:05,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:48:05,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:48:05,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:48:05,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:48:05,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:48:05,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:48:05,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:48:05,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 15:48:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:48:05,041 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:48:05,041 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:48:05,041 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:48:05,042 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:48:05,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:48:05,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:48:05,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:48:05,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:48:05,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:48:05,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:48:05,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:48:05,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:48:05,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:48:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:48:05,047 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:48:05,047 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:48:05,047 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:48:05,048 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:48:05,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:48:05,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:48:05,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:48:05,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:48:05,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:48:05,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:48:05,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:48:05,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:48:05,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 15:48:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:48:05,053 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:48:05,053 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:48:05,053 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:48:05,054 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:48:05,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:48:05,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:48:05,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:48:05,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:48:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:48:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:48:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:48:05,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:48:05,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 15:48:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:48:05,059 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:48:05,059 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:48:05,059 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:48:05,060 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:48:05,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:48:05,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:48:05,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:48:05,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:48:05,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:48:05,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:48:05,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:48:05,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:48:05,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 15:48:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:48:05,065 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:48:05,065 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:48:05,066 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:48:05,066 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:48:05,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 15:48:05,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:48:05,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:48:05,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:48:05,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:48:05,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:48:05,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:48:05,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:48:05,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 15:48:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:48:05,075 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:48:05,075 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:48:05,075 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:48:05,075 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:48:05,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:48:05,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:48:05,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:48:05,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:48:05,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:48:05,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:48:05,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:48:05,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:48:05,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 15:48:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:48:05,081 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:48:05,081 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:48:05,081 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:48:05,081 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:48:05,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:48:05,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:48:05,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:48:05,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:48:05,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:48:05,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:48:05,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:48:05,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:48:05,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-24 15:48:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:48:05,100 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:48:05,101 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:48:05,101 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:48:05,101 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:48:05,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:48:05,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:48:05,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:48:05,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:48:05,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:48:05,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:48:05,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:48:05,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:48:05,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-09-24 15:48:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:48:05,107 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:48:05,107 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:48:05,107 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:48:05,108 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:48:05,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:48:05,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:48:05,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:48:05,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:48:05,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:48:05,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:48:05,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:48:05,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:48:05,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-09-24 15:48:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:48:05,117 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:48:05,117 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:48:05,117 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:48:05,117 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:48:05,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:48:05,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:48:05,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:48:05,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:48:05,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:48:05,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:48:05,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:48:05,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:48:05,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-09-24 15:48:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:48:05,147 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:48:05,148 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:48:05,148 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:48:05,148 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:48:05,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:48:05,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:48:05,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:48:05,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:48:05,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:48:05,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:48:05,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:48:05,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:48:05,212 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 15:48:05,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1056949492] [2020-09-24 15:48:05,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:48:05,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 15:48:05,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019083443] [2020-09-24 15:48:05,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:48:05,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:48:05,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:48:05,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:48:05,215 INFO L87 Difference]: Start difference. First operand 568 states and 652 transitions. Second operand 11 states. [2020-09-24 15:48:05,924 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-24 15:48:09,507 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-24 15:48:09,903 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-24 15:48:10,364 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-24 15:48:10,772 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-24 15:48:11,171 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-24 15:48:11,567 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-24 15:48:11,987 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-24 15:48:15,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:48:15,168 INFO L93 Difference]: Finished difference Result 1548 states and 1971 transitions. [2020-09-24 15:48:15,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 15:48:15,169 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 255 [2020-09-24 15:48:15,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:48:15,179 INFO L225 Difference]: With dead ends: 1548 [2020-09-24 15:48:15,179 INFO L226 Difference]: Without dead ends: 1132 [2020-09-24 15:48:15,181 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 15:48:15,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2020-09-24 15:48:15,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 955. [2020-09-24 15:48:15,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 955 states. [2020-09-24 15:48:15,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1141 transitions. [2020-09-24 15:48:15,364 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1141 transitions. Word has length 255 [2020-09-24 15:48:15,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:48:15,365 INFO L479 AbstractCegarLoop]: Abstraction has 955 states and 1141 transitions. [2020-09-24 15:48:15,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:48:15,365 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1141 transitions. [2020-09-24 15:48:15,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-09-24 15:48:15,371 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:48:15,371 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 15:48:15,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:48:15,372 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:48:15,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:48:15,372 INFO L82 PathProgramCache]: Analyzing trace with hash -522870887, now seen corresponding path program 1 times [2020-09-24 15:48:15,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:48:15,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [899555593] [2020-09-24 15:48:15,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:48:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:48:15,479 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:48:15,479 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:48:15,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:48:15,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:48:15 BoogieIcfgContainer [2020-09-24 15:48:15,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:48:15,518 INFO L168 Benchmark]: Toolchain (without parser) took 28642.95 ms. Allocated memory was 140.5 MB in the beginning and 702.5 MB in the end (delta: 562.0 MB). Free memory was 103.0 MB in the beginning and 533.2 MB in the end (delta: -430.2 MB). Peak memory consumption was 131.9 MB. Max. memory is 7.1 GB. [2020-09-24 15:48:15,519 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 15:48:15,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 793.19 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 102.3 MB in the beginning and 171.7 MB in the end (delta: -69.4 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2020-09-24 15:48:15,521 INFO L168 Benchmark]: Boogie Preprocessor took 102.71 ms. Allocated memory is still 205.0 MB. Free memory was 171.7 MB in the beginning and 167.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-24 15:48:15,521 INFO L168 Benchmark]: RCFGBuilder took 1644.22 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 167.6 MB in the beginning and 163.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2020-09-24 15:48:15,522 INFO L168 Benchmark]: TraceAbstraction took 26093.15 ms. Allocated memory was 238.6 MB in the beginning and 702.5 MB in the end (delta: 464.0 MB). Free memory was 163.1 MB in the beginning and 533.2 MB in the end (delta: -370.1 MB). Peak memory consumption was 93.9 MB. Max. memory is 7.1 GB. [2020-09-24 15:48:15,526 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 793.19 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 102.3 MB in the beginning and 171.7 MB in the end (delta: -69.4 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.71 ms. Allocated memory is still 205.0 MB. Free memory was 171.7 MB in the beginning and 167.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1644.22 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 167.6 MB in the beginning and 163.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26093.15 ms. Allocated memory was 238.6 MB in the beginning and 702.5 MB in the end (delta: 464.0 MB). Free memory was 163.1 MB in the beginning and 533.2 MB in the end (delta: -370.1 MB). Peak memory consumption was 93.9 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: 25.9s, OverallIterations: 5, TraceHistogramMax: 6, AutomataDifference: 20.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1372 SDtfs, 2915 SDslu, 902 SDs, 0 SdLazy, 4091 SolverSat, 1195 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=955occurred 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, 369 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.2s 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...