/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --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_spec4_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:53:35,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:53:35,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:53:35,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:53:35,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:53:35,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:53:35,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:53:35,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:53:35,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:53:35,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:53:35,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:53:35,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:53:35,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:53:35,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:53:35,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:53:35,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:53:35,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:53:35,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:53:35,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:53:35,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:53:35,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:53:35,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:53:35,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:53:35,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:53:35,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:53:35,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:53:35,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:53:35,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:53:35,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:53:35,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:53:35,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:53:35,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:53:35,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:53:35,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:53:35,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:53:35,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:53:35,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:53:35,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:53:35,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:53:35,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:53:35,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:53:35,853 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:53:35,904 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:53:35,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:53:35,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:53:35,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:53:35,908 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:53:35,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:53:35,908 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:53:35,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:53:35,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:53:35,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:53:35,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:53:35,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:53:35,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:53:35,911 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:53:35,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:53:35,912 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:53:35,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:53:35,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:53:35,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:53:35,912 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:53:35,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:53:35,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:53:35,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:53:35,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:53:35,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:53:35,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:53:35,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:53:35,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:53:35,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:53:35,914 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:53:36,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:53:36,368 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:53:36,374 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:53:36,377 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:53:36,377 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:53:36,378 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product37.cil.c [2020-09-25 01:53:36,463 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/501c0df41/0c50a1d43113484c8dd7691e7ee8d0cf/FLAGd78e4bebe [2020-09-25 01:53:37,114 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:53:37,115 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product37.cil.c [2020-09-25 01:53:37,131 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/501c0df41/0c50a1d43113484c8dd7691e7ee8d0cf/FLAGd78e4bebe [2020-09-25 01:53:37,337 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/501c0df41/0c50a1d43113484c8dd7691e7ee8d0cf [2020-09-25 01:53:37,351 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:53:37,358 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:53:37,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:53:37,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:53:37,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:53:37,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:53:37" (1/1) ... [2020-09-25 01:53:37,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387f035d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:53:37, skipping insertion in model container [2020-09-25 01:53:37,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:53:37" (1/1) ... [2020-09-25 01:53:37,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:53:37,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:53:37,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:53:37,838 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:53:38,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:53:38,133 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:53:38,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:53:38 WrapperNode [2020-09-25 01:53:38,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:53:38,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:53:38,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:53:38,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:53:38,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:53:38" (1/1) ... [2020-09-25 01:53:38,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:53:38" (1/1) ... [2020-09-25 01:53:38,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:53:38" (1/1) ... [2020-09-25 01:53:38,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:53:38" (1/1) ... [2020-09-25 01:53:38,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:53:38" (1/1) ... [2020-09-25 01:53:38,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:53:38" (1/1) ... [2020-09-25 01:53:38,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:53:38" (1/1) ... [2020-09-25 01:53:38,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:53:38,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:53:38,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:53:38,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:53:38,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:53:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:53:38,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:53:38,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:53:38,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:53:38,330 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:53:38,330 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:53:38,330 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:53:38,330 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:53:38,330 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:53:38,336 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:53:38,336 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:53:38,336 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:53:38,336 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:53:38,337 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:53:38,337 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:53:38,337 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:53:38,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:53:38,338 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:53:38,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:53:38,338 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:53:38,339 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:53:38,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:53:38,339 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:53:38,339 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:53:38,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:53:38,340 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:53:38,340 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:53:38,340 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:53:38,340 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:53:38,340 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:53:38,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:53:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:53:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:53:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:53:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:53:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:53:38,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:53:38,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:53:38,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 01:53:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:53:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:53:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:53:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:53:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:53:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:53:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:53:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:53:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:53:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:53:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:53:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:53:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:53:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:53:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:53:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:53:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:53:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:53:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:53:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:53:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 01:53:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:53:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:53:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:53:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:53:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:53:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:53:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:53:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:53:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:53:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:53:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:53:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:53:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:53:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:53:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:53:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:53:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:53:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:53:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:53:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:53:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:53:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:53:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:53:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:53:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:53:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:53:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:53:38,349 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:53:38,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:53:38,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:53:38,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:53:39,517 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:53:39,517 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:53:39,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:53:39 BoogieIcfgContainer [2020-09-25 01:53:39,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:53:39,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:53:39,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:53:39,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:53:39,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:53:37" (1/3) ... [2020-09-25 01:53:39,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155e47d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:53:39, skipping insertion in model container [2020-09-25 01:53:39,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:53:38" (2/3) ... [2020-09-25 01:53:39,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155e47d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:53:39, skipping insertion in model container [2020-09-25 01:53:39,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:53:39" (3/3) ... [2020-09-25 01:53:39,540 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product37.cil.c [2020-09-25 01:53:39,551 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:53:39,566 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:53:39,586 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:53:39,620 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:53:39,621 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:53:39,621 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:53:39,621 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:53:39,621 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:53:39,621 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:53:39,621 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:53:39,621 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:53:39,647 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-09-25 01:53:39,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 01:53:39,666 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:53:39,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:53:39,668 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:53:39,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:53:39,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1997357688, now seen corresponding path program 1 times [2020-09-25 01:53:39,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:53:39,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478791290] [2020-09-25 01:53:39,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:53:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:40,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:40,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:41,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:42,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:42,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:45,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:45,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 01:53:45,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:53:45,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 01:53:45,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:45,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:45,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:53:45,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:45,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 01:53:45,521 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:53:45,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:53:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:45,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:45,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:45,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:53:45,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:45,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-25 01:53:45,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:45,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:45,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:45,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:45,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:53:45,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:53:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:45,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:45,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:45,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:53:45,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:45,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:53:45,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:45,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:45,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:45,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:45,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:53:45,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:53:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:45,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:45,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:45,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:53:45,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:45,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:53:45,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:45,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:45,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:45,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:45,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:53:45,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:53:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:45,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:45,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:45,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:53:45,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:45,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:53:45,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:45,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:45,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:45,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:45,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:53:45,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:53:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:45,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:45,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:45,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:53:45,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:45,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:53:45,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:45,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:45,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:45,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:45,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:53:45,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:53:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:45,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:45,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:45,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:53:45,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:45,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:53:45,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:45,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:45,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:53:45,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:45,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:53:45,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:53:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:45,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:45,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:45,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:53:45,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:45,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:53:45,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:45,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:45,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:53:45,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:45,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:53:45,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:53:45,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478791290] [2020-09-25 01:53:45,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:53:45,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:53:45,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385442686] [2020-09-25 01:53:45,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:53:45,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:53:46,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:53:46,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:53:46,018 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 3 states. [2020-09-25 01:53:47,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:53:47,628 INFO L93 Difference]: Finished difference Result 477 states and 566 transitions. [2020-09-25 01:53:47,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:53:47,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 01:53:47,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:53:47,651 INFO L225 Difference]: With dead ends: 477 [2020-09-25 01:53:47,651 INFO L226 Difference]: Without dead ends: 296 [2020-09-25 01:53:47,657 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:53:47,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-25 01:53:47,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 255. [2020-09-25 01:53:47,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 01:53:47,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 276 transitions. [2020-09-25 01:53:47,770 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 276 transitions. Word has length 142 [2020-09-25 01:53:47,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:53:47,771 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 276 transitions. [2020-09-25 01:53:47,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:53:47,771 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 276 transitions. [2020-09-25 01:53:47,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 01:53:47,776 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:53:47,776 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:53:47,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:53:47,777 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:53:47,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:53:47,778 INFO L82 PathProgramCache]: Analyzing trace with hash -233302428, now seen corresponding path program 1 times [2020-09-25 01:53:47,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:53:47,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1119038783] [2020-09-25 01:53:47,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:53:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:47,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:47,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:48,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:49,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:49,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:52,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:52,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 01:53:52,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:53:52,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 01:53:52,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:52,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:53:52,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:53:52,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:53:52,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:53:53,270 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:53:53,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:53:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:53,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:53,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:53,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:53:53,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:53,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 01:53:53,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:53,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:53,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:53,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:53,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:53:53,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:53:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:53,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:53,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:53,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:53:53,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:53,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:53:53,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:53,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:53,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:53,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:53,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:53:53,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:53:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:53,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:53,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:53,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:53:53,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:53,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:53:53,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:53,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:53,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:53,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:53,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:53:53,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:53:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:53,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:53,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:53,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:53:53,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:53,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:53:53,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:53,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:53,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:53,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:53,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:53:53,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:53:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:53,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:53,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:53,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:53:53,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:53,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:53:53,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:53,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:53,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:53,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:53,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:53:53,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:53:53,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:53,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:53,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:53,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:53:53,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:53,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:53:53,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:53,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:53,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:53:53,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:53,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:53:53,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:53:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:53,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:53,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:53,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:53:53,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:53,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:53:53,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:53,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:53,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:53:53,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:53,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:53:53,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:53:53,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1119038783] [2020-09-25 01:53:53,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:53:53,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:53:53,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517773188] [2020-09-25 01:53:53,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:53:53,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:53:53,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:53:53,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:53:53,500 INFO L87 Difference]: Start difference. First operand 255 states and 276 transitions. Second operand 4 states. [2020-09-25 01:53:54,135 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:53:55,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:53:55,106 INFO L93 Difference]: Finished difference Result 394 states and 441 transitions. [2020-09-25 01:53:55,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:53:55,109 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 01:53:55,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:53:55,114 INFO L225 Difference]: With dead ends: 394 [2020-09-25 01:53:55,114 INFO L226 Difference]: Without dead ends: 279 [2020-09-25 01:53:55,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:53:55,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-25 01:53:55,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 245. [2020-09-25 01:53:55,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-25 01:53:55,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 263 transitions. [2020-09-25 01:53:55,162 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 263 transitions. Word has length 143 [2020-09-25 01:53:55,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:53:55,163 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 263 transitions. [2020-09-25 01:53:55,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:53:55,163 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 263 transitions. [2020-09-25 01:53:55,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 01:53:55,165 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:53:55,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:53:55,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:53:55,166 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:53:55,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:53:55,166 INFO L82 PathProgramCache]: Analyzing trace with hash -577490639, now seen corresponding path program 1 times [2020-09-25 01:53:55,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:53:55,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1089160280] [2020-09-25 01:53:55,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:53:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:55,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:55,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:56,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:56,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:00,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:00,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 01:54:00,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:54:00,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 01:54:00,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:00,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:54:00,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:54:00,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:54:00,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:00,604 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:54:00,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:54:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:00,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:00,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:00,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:54:00,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:00,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 01:54:00,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:00,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:00,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:00,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:00,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:00,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:54:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:00,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:00,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:00,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:00,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:00,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:54:00,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:00,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:00,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:00,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:00,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:00,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:54:00,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:00,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:00,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:00,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:00,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:00,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:54:00,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:00,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:00,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:00,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:00,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:54:00,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:54:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:00,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:00,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:00,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:00,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:00,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:54:00,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:00,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:00,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:00,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:00,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:54:00,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:54:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:00,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:00,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:00,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:00,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:00,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:54:00,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:00,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:00,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:00,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:00,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:54:00,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:54:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:00,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:00,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:00,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:00,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:00,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:54:00,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:00,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:54:00,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:00,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:54:00,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:00,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 01:54:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:00,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:00,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:00,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:00,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:00,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:54:00,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:00,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:54:00,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:00,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:54:00,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:54:00,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:54:00,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1089160280] [2020-09-25 01:54:00,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:54:00,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:54:00,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135825807] [2020-09-25 01:54:00,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:54:00,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:54:00,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:54:00,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:54:00,907 INFO L87 Difference]: Start difference. First operand 245 states and 263 transitions. Second operand 8 states. [2020-09-25 01:54:01,458 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:54:02,650 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:54:03,013 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:54:03,357 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:54:03,688 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:54:04,006 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:54:04,650 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:54:04,953 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:54:05,289 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:54:06,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:54:06,087 INFO L93 Difference]: Finished difference Result 495 states and 572 transitions. [2020-09-25 01:54:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 01:54:06,087 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-09-25 01:54:06,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:54:06,093 INFO L225 Difference]: With dead ends: 495 [2020-09-25 01:54:06,093 INFO L226 Difference]: Without dead ends: 360 [2020-09-25 01:54:06,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 01:54:06,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-09-25 01:54:06,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 331. [2020-09-25 01:54:06,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-09-25 01:54:06,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 368 transitions. [2020-09-25 01:54:06,180 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 368 transitions. Word has length 152 [2020-09-25 01:54:06,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:54:06,182 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 368 transitions. [2020-09-25 01:54:06,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:54:06,182 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 368 transitions. [2020-09-25 01:54:06,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 01:54:06,185 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:54:06,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:54:06,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:54:06,186 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:54:06,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:54:06,186 INFO L82 PathProgramCache]: Analyzing trace with hash -971340205, now seen corresponding path program 1 times [2020-09-25 01:54:06,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:54:06,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771143564] [2020-09-25 01:54:06,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:54:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:06,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:06,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:11,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:11,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 01:54:11,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:54:11,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 01:54:11,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:11,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:54:11,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-25 01:54:11,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:54:11,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:11,552 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:54:11,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:54:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:11,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:11,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:11,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:54:11,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:11,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 01:54:11,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:11,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:11,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:11,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:11,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:11,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:54:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:11,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:11,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:11,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:11,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:11,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:54:11,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:11,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:11,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:11,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:11,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:11,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:54:11,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:11,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:11,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:11,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:11,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:11,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:54:11,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:11,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:11,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:11,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:11,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:11,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:54:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:11,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:11,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:11,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:11,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:11,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:54:11,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:11,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:11,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:11,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:11,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:11,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:54:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:11,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:11,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:11,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:11,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:11,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:54:11,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:11,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:11,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:11,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:11,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:11,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 01:54:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:11,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:11,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:11,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 01:54:11,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:11,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 01:54:11,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:11,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:54:11,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 01:54:11,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:54:11,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:11,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:54:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:11,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:11,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:11,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 01:54:11,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:11,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 01:54:11,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:11,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:54:11,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 01:54:11,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:54:11,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:11,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:54:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:11,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:11,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:11,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:54:11,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:11,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 01:54:11,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:11,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:54:11,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:11,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 01:54:11,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:12,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:54:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:12,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:12,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:12,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:54:12,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:12,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:54:12,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:12,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:12,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:54:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:12,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:12,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:12,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:54:12,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:12,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:54:12,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:12,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:12,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 01:54:12,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:12,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:12,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 01:54:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:12,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:12,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:12,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:12,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:12,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:54:12,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:54:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:12,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:12,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 01:54:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:12,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:12,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:12,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:12,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:12,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:54:12,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:12,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:12,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:54:12,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:12,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:12,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:54:12,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771143564] [2020-09-25 01:54:12,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:54:12,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:54:12,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313587092] [2020-09-25 01:54:12,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:54:12,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:54:12,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:54:12,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:54:12,088 INFO L87 Difference]: Start difference. First operand 331 states and 368 transitions. Second operand 9 states. [2020-09-25 01:54:13,752 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:54:14,060 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:54:14,347 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:54:14,662 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:54:14,971 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:54:15,285 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:54:16,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:54:16,080 INFO L93 Difference]: Finished difference Result 612 states and 716 transitions. [2020-09-25 01:54:16,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 01:54:16,080 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-09-25 01:54:16,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:54:16,086 INFO L225 Difference]: With dead ends: 612 [2020-09-25 01:54:16,086 INFO L226 Difference]: Without dead ends: 391 [2020-09-25 01:54:16,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-25 01:54:16,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-09-25 01:54:16,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 339. [2020-09-25 01:54:16,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-09-25 01:54:16,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 376 transitions. [2020-09-25 01:54:16,136 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 376 transitions. Word has length 190 [2020-09-25 01:54:16,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:54:16,137 INFO L479 AbstractCegarLoop]: Abstraction has 339 states and 376 transitions. [2020-09-25 01:54:16,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:54:16,137 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 376 transitions. [2020-09-25 01:54:16,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 01:54:16,140 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:54:16,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:54:16,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:54:16,141 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:54:16,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:54:16,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1945210381, now seen corresponding path program 1 times [2020-09-25 01:54:16,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:54:16,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [434743884] [2020-09-25 01:54:16,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:54:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:16,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:16,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:21,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:21,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 01:54:21,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:54:21,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4924 [2020-09-25 01:54:21,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:21,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:54:21,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 01:54:21,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:54:21,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:21,432 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:54:21,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:54:21,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:21,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:21,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:21,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:54:21,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:21,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 01:54:21,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:21,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:21,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:21,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:21,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:21,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:54:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:21,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:21,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:21,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:21,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:21,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:54:21,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:21,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:21,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:21,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:21,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:21,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:54:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:21,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:21,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:21,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:21,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:21,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:54:21,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:21,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:21,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:21,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:21,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:21,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:54:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:21,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:21,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:21,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:21,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:21,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:54:21,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:21,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:21,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:21,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:21,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:21,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:54:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:21,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:21,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:21,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:21,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:21,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:54:21,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:21,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:21,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:21,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:21,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:21,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 01:54:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:21,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:21,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:21,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 01:54:21,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:21,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 01:54:21,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:21,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:54:21,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 01:54:21,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:54:21,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:21,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:54:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:21,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:21,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:21,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 01:54:21,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:21,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 01:54:21,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:21,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:54:21,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:54:21,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:54:21,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:21,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:54:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:21,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:21,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:21,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:54:21,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:21,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 01:54:21,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:21,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:54:21,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 01:54:21,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:54:21,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:21,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:54:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:21,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:21,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:21,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:54:21,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:21,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:54:21,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:21,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:54:21,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:21,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:54:21,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:21,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:54:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:21,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:21,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:21,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:54:21,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:21,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:54:21,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:21,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:21,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 01:54:21,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:21,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:21,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 01:54:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:21,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:21,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:21,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:21,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:21,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:54:21,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:21,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:21,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:54:21,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:21,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:21,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 01:54:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:21,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:21,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:21,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:21,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:21,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:54:21,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:21,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:21,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:54:21,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:21,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:21,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:54:21,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [434743884] [2020-09-25 01:54:21,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:54:21,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:54:21,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771671038] [2020-09-25 01:54:21,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:54:21,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:54:21,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:54:21,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:54:21,848 INFO L87 Difference]: Start difference. First operand 339 states and 376 transitions. Second operand 8 states. [2020-09-25 01:54:23,069 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187