/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=DEEPEST --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_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:45:46,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:45:46,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:45:46,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:45:46,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:45:46,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:45:46,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:45:46,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:45:46,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:45:46,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:45:46,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:45:46,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:45:46,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:45:46,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:45:46,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:45:46,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:45:46,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:45:46,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:45:46,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:45:46,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:45:46,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:45:46,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:45:46,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:45:46,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:45:46,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:45:46,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:45:46,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:45:46,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:45:46,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:45:46,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:45:46,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:45:46,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:45:46,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:45:46,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:45:46,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:45:46,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:45:46,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:45:46,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:45:46,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:45:46,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:45:46,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:45:46,454 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 00:45:46,482 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:45:46,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:45:46,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:45:46,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:45:46,484 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:45:46,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:45:46,484 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:45:46,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:45:46,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:45:46,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:45:46,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:45:46,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:45:46,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:45:46,486 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:45:46,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:45:46,486 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:45:46,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:45:46,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:45:46,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:45:46,487 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:45:46,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:45:46,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:45:46,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:45:46,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:45:46,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:45:46,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:45:46,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:45:46,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:45:46,489 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:45:46,489 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:45:46,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:45:47,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:45:47,010 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:45:47,011 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:45:47,012 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:45:47,013 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c [2020-09-25 00:45:47,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b47f92c01/7667edfbef274c3491ed6390d2390bad/FLAGd40c67354 [2020-09-25 00:45:47,674 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:45:47,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c [2020-09-25 00:45:47,689 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b47f92c01/7667edfbef274c3491ed6390d2390bad/FLAGd40c67354 [2020-09-25 00:45:47,979 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b47f92c01/7667edfbef274c3491ed6390d2390bad [2020-09-25 00:45:47,994 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:45:48,001 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:45:48,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:45:48,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:45:48,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:45:48,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:45:47" (1/1) ... [2020-09-25 00:45:48,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@263e4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:48, skipping insertion in model container [2020-09-25 00:45:48,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:45:47" (1/1) ... [2020-09-25 00:45:48,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:45:48,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:45:48,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:45:48,630 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:45:48,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:45:48,769 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:45:48,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:48 WrapperNode [2020-09-25 00:45:48,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:45:48,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:45:48,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:45:48,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:45:48,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:48" (1/1) ... [2020-09-25 00:45:48,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:48" (1/1) ... [2020-09-25 00:45:48,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:48" (1/1) ... [2020-09-25 00:45:48,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:48" (1/1) ... [2020-09-25 00:45:48,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:48" (1/1) ... [2020-09-25 00:45:48,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:48" (1/1) ... [2020-09-25 00:45:48,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:48" (1/1) ... [2020-09-25 00:45:48,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:45:48,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:45:48,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:45:48,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:45:48,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:48" (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 00:45:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:45:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:45:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:45:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:45:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:45:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:45:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:45:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:45:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:45:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:45:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:45:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:45:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:45:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:45:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:45:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:45:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:45:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:45:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:45:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:45:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:45:49,000 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:45:49,000 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:45:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:45:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 00:45:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:45:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:45:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:45:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:45:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:45:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:45:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:45:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:45:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:45:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:45:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:45:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:45:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:45:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 00:45:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:45:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:45:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:45:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:45:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:45:49,005 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:45:49,005 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:45:49,005 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:45:49,005 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:45:49,005 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:45:49,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:45:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:45:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:45:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:45:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:45:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:45:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:45:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:45:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:45:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:45:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:45:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:45:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:45:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:45:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:45:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:45:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 00:45:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:45:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:45:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:45:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:45:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:45:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:45:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:45:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:45:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:45:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:45:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:45:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 00:45:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:45:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:45:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:45:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:45:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:45:49,014 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:45:49,014 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:45:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:45:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:45:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:45:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:45:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:45:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:45:49,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:45:50,218 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:45:50,219 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:45:50,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:45:50 BoogieIcfgContainer [2020-09-25 00:45:50,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:45:50,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:45:50,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:45:50,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:45:50,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:45:47" (1/3) ... [2020-09-25 00:45:50,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c7e228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:45:50, skipping insertion in model container [2020-09-25 00:45:50,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:48" (2/3) ... [2020-09-25 00:45:50,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c7e228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:45:50, skipping insertion in model container [2020-09-25 00:45:50,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:45:50" (3/3) ... [2020-09-25 00:45:50,236 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product39.cil.c [2020-09-25 00:45:50,249 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:45:50,260 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:45:50,283 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:45:50,315 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:45:50,315 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:45:50,315 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:45:50,315 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:45:50,316 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:45:50,316 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:45:50,316 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:45:50,316 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:45:50,344 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2020-09-25 00:45:50,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 00:45:50,362 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:45:50,364 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 00:45:50,364 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:45:50,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:45:50,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1206638140, now seen corresponding path program 1 times [2020-09-25 00:45:50,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:45:50,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1222050134] [2020-09-25 00:45:50,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:45:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:50,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:51,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:52,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:53,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:55,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:55,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 00:45:55,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:45:55,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 00:45:55,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:55,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:45:55,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-25 00:45:55,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:45:55,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 00:45:56,321 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:45:56,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:45:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:56,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:56,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:56,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:45:56,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:56,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 00:45:56,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:56,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:45:56,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:56,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:45:56,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:45:56,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:45:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:56,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:56,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:56,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:45:56,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:56,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:45:56,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:56,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:45:56,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:56,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:45:56,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:45:56,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:45:56,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:56,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:56,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:56,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:45:56,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:56,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:45:56,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:56,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:45:56,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:56,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:45:56,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:45:56,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:45:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:56,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:56,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:56,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:45:56,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:56,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:45:56,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:56,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:45:56,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:56,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:45:56,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:45:56,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:45:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:56,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:56,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:56,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:45:56,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:56,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:45:56,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:56,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:45:56,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:56,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:45:56,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:45:56,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:45:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:56,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:56,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:56,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:45:56,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:56,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:45:56,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:56,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:45:56,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:56,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:45:56,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:45:56,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 00:45:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:56,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:56,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:56,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:45:56,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:56,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:45:56,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:56,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:45:56,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:56,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:45:56,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:45:56,765 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 00:45:56,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1222050134] [2020-09-25 00:45:56,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:45:56,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:45:56,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096623672] [2020-09-25 00:45:56,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:45:56,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:45:56,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:45:56,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:45:56,817 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 8 states. [2020-09-25 00:45:57,876 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:45:59,373 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:45:59,836 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:46:00,260 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:00,606 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:46:00,902 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:01,568 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:46:01,841 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:02,216 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:46:03,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:46:03,540 INFO L93 Difference]: Finished difference Result 604 states and 757 transitions. [2020-09-25 00:46:03,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:46:03,544 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 00:46:03,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:46:03,567 INFO L225 Difference]: With dead ends: 604 [2020-09-25 00:46:03,567 INFO L226 Difference]: Without dead ends: 403 [2020-09-25 00:46:03,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:46:03,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-09-25 00:46:03,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 359. [2020-09-25 00:46:03,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-09-25 00:46:03,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 413 transitions. [2020-09-25 00:46:03,713 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 413 transitions. Word has length 142 [2020-09-25 00:46:03,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:46:03,714 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 413 transitions. [2020-09-25 00:46:03,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:46:03,714 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 413 transitions. [2020-09-25 00:46:03,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-25 00:46:03,720 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:46:03,721 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:46:03,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:46:03,721 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:46:03,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:46:03,722 INFO L82 PathProgramCache]: Analyzing trace with hash -362955272, now seen corresponding path program 1 times [2020-09-25 00:46:03,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:46:03,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309716673] [2020-09-25 00:46:03,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:46:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:03,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:03,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:04,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:04,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:08,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:08,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-25 00:46:08,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:46:08,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-25 00:46:08,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:08,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:46:08,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-25 00:46:08,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:46:08,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:09,176 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:46:09,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:46:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:09,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:09,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:09,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:46:09,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:09,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 00:46:09,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:09,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:09,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:09,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:09,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:09,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:46:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:09,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:09,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:09,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:09,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:09,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:09,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:09,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:09,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:09,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:09,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:09,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:46:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:09,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:09,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:09,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:09,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:09,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:46:09,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:09,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:09,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:09,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:09,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:09,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:46:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:09,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:09,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:09,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:09,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:09,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:46:09,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:09,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:09,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:09,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:09,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:09,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:46:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:09,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:09,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:09,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:09,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:09,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:09,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:09,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:09,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:09,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:09,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:09,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-25 00:46:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:09,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:09,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:09,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 00:46:09,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:09,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:46:09,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:09,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:09,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:09,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:09,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:09,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:09,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:09,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:09,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 00:46:09,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:09,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:46:09,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:09,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:09,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:09,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:09,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:09,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:09,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:09,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:09,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:09,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:09,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:09,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:09,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:09,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:09,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:09,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:09,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:46:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:09,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:09,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:09,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:46:09,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:09,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 00:46:09,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:09,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:46:09,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:46:09,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:46:09,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:09,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:09,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:09,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:09,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:46:09,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:09,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 00:46:09,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:09,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:46:09,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:46:09,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:46:09,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:09,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:09,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:09,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:09,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:46:09,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:09,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 00:46:09,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:09,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:46:09,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:09,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:46:09,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:09,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:46:09,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:09,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:09,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:09,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:46:09,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:09,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:46:09,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:09,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:09,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:09,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:46:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:09,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:09,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:09,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:46:09,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:09,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:46:09,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:09,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:09,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:46:09,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:09,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:09,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 00:46:09,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:09,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:09,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:09,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:09,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:09,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:46:09,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:09,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:09,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:46:09,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:09,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:09,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-25 00:46:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:09,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:09,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:09,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:09,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:09,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:46:09,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:09,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:09,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:46:09,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:09,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:09,878 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 00:46:09,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309716673] [2020-09-25 00:46:09,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:46:09,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 00:46:09,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557247276] [2020-09-25 00:46:09,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:46:09,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:46:09,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:46:09,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:46:09,887 INFO L87 Difference]: Start difference. First operand 359 states and 413 transitions. Second operand 10 states. [2020-09-25 00:46:11,625 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:46:11,884 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:46:12,140 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:46:12,390 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:46:12,643 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:46:12,887 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:46:13,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:46:13,989 INFO L93 Difference]: Finished difference Result 722 states and 904 transitions. [2020-09-25 00:46:13,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:46:13,990 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 205 [2020-09-25 00:46:13,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:46:14,001 INFO L225 Difference]: With dead ends: 722 [2020-09-25 00:46:14,006 INFO L226 Difference]: Without dead ends: 473 [2020-09-25 00:46:14,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:46:14,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-09-25 00:46:14,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 370. [2020-09-25 00:46:14,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-09-25 00:46:14,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 424 transitions. [2020-09-25 00:46:14,080 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 424 transitions. Word has length 205 [2020-09-25 00:46:14,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:46:14,081 INFO L479 AbstractCegarLoop]: Abstraction has 370 states and 424 transitions. [2020-09-25 00:46:14,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:46:14,082 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 424 transitions. [2020-09-25 00:46:14,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 00:46:14,085 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:46:14,085 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 00:46:14,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:46:14,086 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:46:14,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:46:14,086 INFO L82 PathProgramCache]: Analyzing trace with hash -853023050, now seen corresponding path program 1 times [2020-09-25 00:46:14,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:46:14,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2012117739] [2020-09-25 00:46:14,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:46:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:14,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:14,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:19,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:19,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 00:46:19,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:46:19,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 00:46:19,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:19,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:46:19,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 00:46:19,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:46:19,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:19,428 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:46:19,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:46:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:19,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:19,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:19,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:46:19,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:19,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 00:46:19,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:19,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:19,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:19,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:19,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:19,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:46:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:19,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:19,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:19,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:19,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:19,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:19,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:19,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:19,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:19,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:19,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:19,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:46:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:19,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:19,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:19,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:19,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:19,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:19,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:19,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:19,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:19,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:19,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:19,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:46:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:19,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:19,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:19,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:19,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:19,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:46:19,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:19,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:19,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:46:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:19,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:19,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:19,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:19,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:19,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:46:19,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:19,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:19,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:19,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:19,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:19,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 00:46:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:19,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:19,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:19,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:46:19,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:19,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 00:46:19,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:19,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:46:19,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:46:19,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:46:19,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:19,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:19,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:19,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:19,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:46:19,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:19,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 00:46:19,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:19,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:46:19,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:46:19,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:46:19,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:19,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:19,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:19,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:19,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:46:19,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:19,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 00:46:19,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:19,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:46:19,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:46:19,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:46:19,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:19,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:46:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:19,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:19,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:19,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:46:19,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:19,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:46:19,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:19,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:46:19,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:19,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:46:19,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:19,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:46:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:19,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:19,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:19,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:46:19,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:19,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:19,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:19,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:19,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:46:19,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:19,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:19,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 00:46:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:19,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:19,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:19,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:19,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:19,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:19,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:19,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:19,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:46:19,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:19,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:19,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 00:46:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:19,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:19,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:19,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:19,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:19,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:19,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:19,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:19,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:46:19,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:19,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:19,915 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 00:46:19,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2012117739] [2020-09-25 00:46:19,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:46:19,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:46:19,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572436853] [2020-09-25 00:46:19,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:46:19,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:46:19,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:46:19,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:46:19,920 INFO L87 Difference]: Start difference. First operand 370 states and 424 transitions. Second operand 8 states. [2020-09-25 00:46:21,616 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:46:21,949 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:46:22,234 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:46:22,512 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:46:22,798 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:46:23,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:46:23,768 INFO L93 Difference]: Finished difference Result 721 states and 914 transitions. [2020-09-25 00:46:23,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 00:46:23,770 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 190 [2020-09-25 00:46:23,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:46:23,776 INFO L225 Difference]: With dead ends: 721 [2020-09-25 00:46:23,777 INFO L226 Difference]: Without dead ends: 461 [2020-09-25 00:46:23,779 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-25 00:46:23,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2020-09-25 00:46:23,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 376. [2020-09-25 00:46:23,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-09-25 00:46:23,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 430 transitions. [2020-09-25 00:46:23,835 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 430 transitions. Word has length 190 [2020-09-25 00:46:23,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:46:23,836 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 430 transitions. [2020-09-25 00:46:23,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:46:23,836 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 430 transitions. [2020-09-25 00:46:23,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-25 00:46:23,839 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:46:23,839 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:46:23,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:46:23,840 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:46:23,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:46:23,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1317847867, now seen corresponding path program 1 times [2020-09-25 00:46:23,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:46:23,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1261496487] [2020-09-25 00:46:23,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:46:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:23,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:24,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:24,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:24,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:28,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:28,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-25 00:46:28,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:46:28,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 00:46:28,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:28,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:46:28,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-09-25 00:46:28,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:46:28,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:29,208 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:46:29,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:46:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:29,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:29,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:29,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:46:29,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:29,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 00:46:29,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:29,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:29,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:29,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:29,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:29,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:46:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:29,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:29,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:29,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:29,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:29,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:29,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:29,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:29,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:29,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:29,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:29,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:46:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:29,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:29,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:29,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:29,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:29,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:46:29,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:29,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:29,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:46:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:29,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:29,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:29,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:29,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:29,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:29,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:29,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:29,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:29,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:29,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:29,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:46:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:29,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:29,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:29,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:29,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:29,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:46:29,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:29,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:29,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:29,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:29,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:29,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-25 00:46:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:29,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:29,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:29,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 00:46:29,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:29,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:46:29,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:29,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:46:29,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:29,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:46:29,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:29,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:29,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:29,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:29,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 00:46:29,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:29,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 00:46:29,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:29,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:46:29,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:29,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:46:29,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:29,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:29,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:29,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:29,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:29,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:29,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:46:29,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:29,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:29,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:46:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:29,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:29,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:29,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:46:29,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:29,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:46:29,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:29,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:29,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-25 00:46:29,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:29,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:29,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:29,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:29,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:29,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:46:29,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:29,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:46:29,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:29,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:29,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:29,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:29,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:29,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:29,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:29,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:29,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:46:29,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:29,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:46:29,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:29,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:29,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:29,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:29,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:29,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:46:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:29,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:29,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:29,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:46:29,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:29,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:46:29,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:29,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:29,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:29,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:29,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:29,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:46:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:29,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:29,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:29,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:46:29,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:29,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:29,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:29,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:29,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:29,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:29,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:29,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 00:46:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:29,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:29,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:29,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:29,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:29,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:29,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:29,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:29,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:46:29,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:29,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:29,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-25 00:46:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:29,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:29,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:29,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:29,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:29,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:29,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:29,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:29,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:46:29,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:29,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:29,580 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 00:46:29,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1261496487] [2020-09-25 00:46:29,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:46:29,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 00:46:29,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102280753] [2020-09-25 00:46:29,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:46:29,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:46:29,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:46:29,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:46:29,584 INFO L87 Difference]: Start difference. First operand 376 states and 430 transitions. Second operand 6 states. [2020-09-25 00:46:30,326 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186