/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:46:13,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:46:13,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:46:13,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:46:13,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:46:13,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:46:13,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:46:13,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:46:13,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:46:13,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:46:13,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:46:13,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:46:13,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:46:13,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:46:13,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:46:13,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:46:13,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:46:13,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:46:13,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:46:13,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:46:13,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:46:13,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:46:13,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:46:13,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:46:13,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:46:13,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:46:13,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:46:13,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:46:13,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:46:13,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:46:13,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:46:13,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:46:13,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:46:13,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:46:13,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:46:13,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:46:13,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:46:13,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:46:13,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:46:13,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:46:13,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:46:13,995 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 15:46:14,032 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:46:14,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:46:14,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:46:14,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:46:14,035 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:46:14,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:46:14,036 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:46:14,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:46:14,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:46:14,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:46:14,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:46:14,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:46:14,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:46:14,038 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:46:14,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:46:14,039 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:46:14,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:46:14,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:46:14,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:46:14,039 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:46:14,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:46:14,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:46:14,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:46:14,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:46:14,041 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:46:14,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:46:14,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:46:14,041 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:46:14,041 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:46:14,042 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:46:14,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:46:14,526 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:46:14,530 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:46:14,531 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:46:14,532 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:46:14,533 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-09-24 15:46:14,607 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7861bc82c/9126ad56f74149039ae46b167b644bdf/FLAGad3ba457c [2020-09-24 15:46:15,159 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:46:15,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-09-24 15:46:15,175 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7861bc82c/9126ad56f74149039ae46b167b644bdf/FLAGad3ba457c [2020-09-24 15:46:15,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7861bc82c/9126ad56f74149039ae46b167b644bdf [2020-09-24 15:46:15,444 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:46:15,449 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:46:15,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:46:15,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:46:15,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:46:15,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:46:15" (1/1) ... [2020-09-24 15:46:15,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28d6e00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:15, skipping insertion in model container [2020-09-24 15:46:15,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:46:15" (1/1) ... [2020-09-24 15:46:15,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:46:15,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:46:15,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:46:15,991 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:46:16,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:46:16,266 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:46:16,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:16 WrapperNode [2020-09-24 15:46:16,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:46:16,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:46:16,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:46:16,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:46:16,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:16" (1/1) ... [2020-09-24 15:46:16,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:16" (1/1) ... [2020-09-24 15:46:16,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:16" (1/1) ... [2020-09-24 15:46:16,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:16" (1/1) ... [2020-09-24 15:46:16,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:16" (1/1) ... [2020-09-24 15:46:16,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:16" (1/1) ... [2020-09-24 15:46:16,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:16" (1/1) ... [2020-09-24 15:46:16,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:46:16,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:46:16,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:46:16,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:46:16,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:46:16,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:46:16,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:46:16,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:46:16,451 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:46:16,451 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:46:16,451 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:46:16,452 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:46:16,452 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:46:16,453 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:46:16,453 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:46:16,453 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:46:16,453 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 15:46:16,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:46:16,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:46:16,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:46:16,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:46:16,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:46:16,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:46:16,456 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:46:16,456 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:46:16,456 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:46:16,456 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:46:16,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:46:16,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:46:16,457 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:46:16,458 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:46:16,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:46:16,458 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:46:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:46:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:46:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:46:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:46:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:46:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:46:16,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:46:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:46:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:46:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:46:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:46:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:46:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 15:46:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:46:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:46:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:46:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:46:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:46:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:46:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:46:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:46:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:46:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:46:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:46:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:46:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:46:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:46:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:46:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:46:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:46:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:46:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:46:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:46:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:46:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:46:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:46:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:46:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:46:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:46:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:46:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:46:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:46:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:46:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:46:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:46:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:46:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:46:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:46:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:46:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:46:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:46:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:46:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:46:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:46:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:46:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:46:17,632 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:46:17,633 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:46:17,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:46:17 BoogieIcfgContainer [2020-09-24 15:46:17,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:46:17,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:46:17,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:46:17,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:46:17,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:46:15" (1/3) ... [2020-09-24 15:46:17,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd9f005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:46:17, skipping insertion in model container [2020-09-24 15:46:17,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:16" (2/3) ... [2020-09-24 15:46:17,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd9f005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:46:17, skipping insertion in model container [2020-09-24 15:46:17,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:46:17" (3/3) ... [2020-09-24 15:46:17,650 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product03.cil.c [2020-09-24 15:46:17,662 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:46:17,673 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:46:17,694 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:46:17,723 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:46:17,723 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:46:17,724 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:46:17,724 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:46:17,724 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:46:17,724 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:46:17,724 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:46:17,724 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:46:17,749 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states. [2020-09-24 15:46:17,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 15:46:17,767 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:17,769 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] [2020-09-24 15:46:17,769 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:17,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:17,777 INFO L82 PathProgramCache]: Analyzing trace with hash -995917748, now seen corresponding path program 1 times [2020-09-24 15:46:17,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:17,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056780456] [2020-09-24 15:46:17,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:18,181 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:18,181 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:18,181 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:18,182 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:18,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 15:46:18,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:18,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:46:18,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:18,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:18,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 15:46:18,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:18,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 15:46:18,622 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:18,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:18,648 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:18,649 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:18,649 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:18,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:18,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:18,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:18,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:18,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:18,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:18,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:18,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:18,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:18,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:18,785 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:18,785 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:18,786 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:18,786 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:18,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:18,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:18,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:18,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:18,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:18,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:18,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:18,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:18,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:18,791 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:18,791 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:18,791 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:18,792 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:18,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:18,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:18,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:18,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:18,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:18,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:18,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:18,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:18,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:18,799 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:18,800 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:18,800 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:18,800 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:18,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:18,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:18,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:18,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:18,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:18,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:18,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:18,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:18,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:18,808 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:18,809 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:18,809 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:18,809 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:18,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:18,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:18,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:18,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:18,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:18,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:18,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:18,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:18,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:46:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:18,815 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:18,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:18,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:18,816 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:18,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:18,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:18,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:18,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:18,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:18,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:18,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:18,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:18,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:46:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:18,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:18,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:18,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:18,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:18,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:18,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:18,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:18,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:18,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:18,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:18,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:18,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:18,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:46:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:18,850 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:18,850 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:18,850 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:18,851 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:18,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:18,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:18,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:18,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:18,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:18,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:18,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:18,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:18,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:18,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056780456] [2020-09-24 15:46:18,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:18,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 15:46:18,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234344941] [2020-09-24 15:46:18,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 15:46:18,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:18,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 15:46:18,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:46:18,924 INFO L87 Difference]: Start difference. First operand 267 states. Second operand 3 states. [2020-09-24 15:46:20,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:20,113 INFO L93 Difference]: Finished difference Result 385 states and 461 transitions. [2020-09-24 15:46:20,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 15:46:20,116 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 15:46:20,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:20,137 INFO L225 Difference]: With dead ends: 385 [2020-09-24 15:46:20,137 INFO L226 Difference]: Without dead ends: 249 [2020-09-24 15:46:20,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:46:20,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-09-24 15:46:20,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 210. [2020-09-24 15:46:20,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-09-24 15:46:20,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 225 transitions. [2020-09-24 15:46:20,285 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 225 transitions. Word has length 153 [2020-09-24 15:46:20,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:20,287 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 225 transitions. [2020-09-24 15:46:20,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 15:46:20,287 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 225 transitions. [2020-09-24 15:46:20,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 15:46:20,292 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:20,293 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] [2020-09-24 15:46:20,293 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:46:20,293 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:20,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:20,294 INFO L82 PathProgramCache]: Analyzing trace with hash -580992356, now seen corresponding path program 1 times [2020-09-24 15:46:20,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:20,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489643724] [2020-09-24 15:46:20,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:20,383 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:20,383 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:20,383 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:20,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:20,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 15:46:20,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:20,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:46:20,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:20,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:20,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 15:46:20,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:46:20,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:20,747 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:20,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:20,763 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:20,763 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:20,764 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:20,764 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:20,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:20,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:20,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:20,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:20,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:20,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:20,810 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:20,810 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:20,810 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:20,811 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:20,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:20,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:20,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:20,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:20,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:20,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:20,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:20,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:20,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:20,815 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:20,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:20,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:20,816 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:20,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:20,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:20,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:20,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:20,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:20,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:20,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:20,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:20,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:20,821 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:20,821 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:20,821 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:20,821 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:20,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:20,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:20,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:20,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:20,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:20,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:20,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:20,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:20,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:20,827 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:20,827 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:20,827 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:20,828 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:20,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:20,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:20,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:20,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:20,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:20,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 15:46:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:20,832 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:20,833 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:20,833 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:20,833 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:20,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:20,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:20,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:20,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:20,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:20,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:20,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:20,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:20,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:46:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:20,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:20,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:20,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:20,839 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:20,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:20,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:20,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:20,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:20,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:20,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:20,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:20,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:20,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 15:46:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:20,844 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:20,845 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:20,845 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:20,845 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:20,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:20,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:20,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:20,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:20,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:20,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:20,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:20,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489643724] [2020-09-24 15:46:20,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:20,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:46:20,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104342795] [2020-09-24 15:46:20,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:46:20,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:20,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:46:20,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:46:20,881 INFO L87 Difference]: Start difference. First operand 210 states and 225 transitions. Second operand 4 states. [2020-09-24 15:46:21,645 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:46:22,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:22,326 INFO L93 Difference]: Finished difference Result 293 states and 326 transitions. [2020-09-24 15:46:22,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:46:22,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 15:46:22,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:22,330 INFO L225 Difference]: With dead ends: 293 [2020-09-24 15:46:22,330 INFO L226 Difference]: Without dead ends: 232 [2020-09-24 15:46:22,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:46:22,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-09-24 15:46:22,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 200. [2020-09-24 15:46:22,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-09-24 15:46:22,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 212 transitions. [2020-09-24 15:46:22,371 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 212 transitions. Word has length 154 [2020-09-24 15:46:22,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:22,376 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 212 transitions. [2020-09-24 15:46:22,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:46:22,376 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 212 transitions. [2020-09-24 15:46:22,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 15:46:22,385 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:22,385 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] [2020-09-24 15:46:22,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:46:22,386 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:22,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:22,386 INFO L82 PathProgramCache]: Analyzing trace with hash 229202311, now seen corresponding path program 1 times [2020-09-24 15:46:22,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:22,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [110796576] [2020-09-24 15:46:22,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:22,525 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:46:22,525 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:22,525 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:22,525 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:22,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 15:46:22,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:22,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 15:46:22,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:22,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:46:22,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 15:46:22,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-24 15:46:22,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:22,959 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:22,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,012 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,012 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,013 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,013 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:23,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:23,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:23,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:23,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:46:23,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:23,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,080 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,080 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,081 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,081 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:23,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:23,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:23,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:23,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:23,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:23,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,088 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,089 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,089 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,089 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:23,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:23,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:23,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:23,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:23,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:23,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,095 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:23,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:23,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:23,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:23,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:23,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:23,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,104 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,105 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,105 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,106 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:23,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:23,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:23,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:23,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:23,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:23,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:46:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,112 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,112 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,112 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,113 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:23,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:23,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:23,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:23,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:23,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:23,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:46:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,119 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,120 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,120 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,120 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:23,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:23,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:23,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:23,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:23,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:23,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 15:46:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,127 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,128 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,128 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,128 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:23,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:23,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:23,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:23,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:23,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:23,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:23,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [110796576] [2020-09-24 15:46:23,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:23,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:46:23,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107309943] [2020-09-24 15:46:23,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:46:23,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:23,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:46:23,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:46:23,187 INFO L87 Difference]: Start difference. First operand 200 states and 212 transitions. Second operand 4 states. [2020-09-24 15:46:23,777 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:24,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:24,899 INFO L93 Difference]: Finished difference Result 420 states and 475 transitions. [2020-09-24 15:46:24,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:46:24,901 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 15:46:24,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:24,905 INFO L225 Difference]: With dead ends: 420 [2020-09-24 15:46:24,906 INFO L226 Difference]: Without dead ends: 330 [2020-09-24 15:46:24,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:46:24,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-09-24 15:46:24,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 278. [2020-09-24 15:46:24,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-09-24 15:46:24,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 301 transitions. [2020-09-24 15:46:24,980 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 301 transitions. Word has length 163 [2020-09-24 15:46:24,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:24,982 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 301 transitions. [2020-09-24 15:46:24,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:46:24,982 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 301 transitions. [2020-09-24 15:46:24,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-24 15:46:24,986 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:24,986 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] [2020-09-24 15:46:24,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:46:24,987 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:24,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:24,987 INFO L82 PathProgramCache]: Analyzing trace with hash -63137044, now seen corresponding path program 1 times [2020-09-24 15:46:24,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:24,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144030484] [2020-09-24 15:46:24,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,104 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,104 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,104 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,104 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 15:46:25,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 15:46:25,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:46:25,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 15:46:25,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-24 15:46:25,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:25,453 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:25,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,496 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,496 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:25,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:25,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:25,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:25,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 15:46:25,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:25,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,557 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,558 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,558 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,558 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:25,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:25,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:25,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:25,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:25,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:25,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,565 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,565 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,565 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:25,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:25,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:25,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:25,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:25,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:25,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,572 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,572 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,572 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,573 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:25,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:25,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:25,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:25,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:25,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:25,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,579 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,579 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,580 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,580 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:25,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:25,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:25,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:25,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:25,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:25,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:46:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,585 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,585 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,585 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:25,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:25,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:25,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:25,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:25,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:25,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 15:46:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,591 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,591 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,591 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:25,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:25,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:25,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:25,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:25,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:25,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 15:46:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,620 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,624 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,624 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,624 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:25,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:46:25,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:46:25,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:25,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:25,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 15:46:25,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 15:46:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,667 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,667 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,668 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,668 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:25,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:25,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:25,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:25,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:25,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:25,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:25,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [144030484] [2020-09-24 15:46:25,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:25,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:46:25,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490685675] [2020-09-24 15:46:25,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:46:25,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:25,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:46:25,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:46:25,740 INFO L87 Difference]: Start difference. First operand 278 states and 301 transitions. Second operand 8 states. [2020-09-24 15:46:26,287 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:27,730 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:28,064 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:28,387 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:28,715 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:29,018 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:29,328 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:29,657 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:30,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:30,194 INFO L93 Difference]: Finished difference Result 641 states and 748 transitions. [2020-09-24 15:46:30,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 15:46:30,195 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-09-24 15:46:30,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:30,201 INFO L225 Difference]: With dead ends: 641 [2020-09-24 15:46:30,201 INFO L226 Difference]: Without dead ends: 473 [2020-09-24 15:46:30,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 15:46:30,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-09-24 15:46:30,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 435. [2020-09-24 15:46:30,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2020-09-24 15:46:30,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 487 transitions. [2020-09-24 15:46:30,260 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 487 transitions. Word has length 166 [2020-09-24 15:46:30,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:30,260 INFO L479 AbstractCegarLoop]: Abstraction has 435 states and 487 transitions. [2020-09-24 15:46:30,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:46:30,261 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 487 transitions. [2020-09-24 15:46:30,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 15:46:30,264 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:30,264 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] [2020-09-24 15:46:30,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:46:30,265 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:30,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:30,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1257129521, now seen corresponding path program 1 times [2020-09-24 15:46:30,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:30,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572195687] [2020-09-24 15:46:30,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:46:30,358 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:46:30,358 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:46:30,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:46:30,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:46:30 BoogieIcfgContainer [2020-09-24 15:46:30,392 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:46:30,394 INFO L168 Benchmark]: Toolchain (without parser) took 14948.71 ms. Allocated memory was 143.7 MB in the beginning and 478.2 MB in the end (delta: 334.5 MB). Free memory was 100.5 MB in the beginning and 352.4 MB in the end (delta: -251.9 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:30,395 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 143.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 15:46:30,396 INFO L168 Benchmark]: CACSL2BoogieTranslator took 815.55 ms. Allocated memory was 143.7 MB in the beginning and 203.4 MB in the end (delta: 59.8 MB). Free memory was 99.9 MB in the beginning and 174.4 MB in the end (delta: -74.5 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:30,397 INFO L168 Benchmark]: Boogie Preprocessor took 105.58 ms. Allocated memory is still 203.4 MB. Free memory was 174.4 MB in the beginning and 170.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:30,398 INFO L168 Benchmark]: RCFGBuilder took 1266.60 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 170.2 MB in the beginning and 185.6 MB in the end (delta: -15.5 MB). Peak memory consumption was 89.4 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:30,399 INFO L168 Benchmark]: TraceAbstraction took 12750.64 ms. Allocated memory was 233.8 MB in the beginning and 478.2 MB in the end (delta: 244.3 MB). Free memory was 184.2 MB in the beginning and 352.4 MB in the end (delta: -168.2 MB). Peak memory consumption was 76.1 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:30,403 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 143.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 815.55 ms. Allocated memory was 143.7 MB in the beginning and 203.4 MB in the end (delta: 59.8 MB). Free memory was 99.9 MB in the beginning and 174.4 MB in the end (delta: -74.5 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.58 ms. Allocated memory is still 203.4 MB. Free memory was 174.4 MB in the beginning and 170.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1266.60 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 170.2 MB in the beginning and 185.6 MB in the end (delta: -15.5 MB). Peak memory consumption was 89.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12750.64 ms. Allocated memory was 233.8 MB in the beginning and 478.2 MB in the end (delta: 244.3 MB). Free memory was 184.2 MB in the beginning and 352.4 MB in the end (delta: -168.2 MB). Peak memory consumption was 76.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 650]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L119] int pumpRunning = 0; [L120] int systemActive = 1; [L411] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L690] int cleanupTimeShifts = 4; [L786] int waterLevel = 1; [L787] int methaneLevelCritical = 0; [L763] int retValue_acc ; [L764] int tmp ; [L768] FCALL select_helpers() [L769] FCALL select_features() [L770] CALL, EXPR valid_product() [L637] int retValue_acc ; [L640] retValue_acc = 1 [L641] return (retValue_acc); [L770] RET, EXPR valid_product() [L770] tmp = valid_product() [L772] COND TRUE \read(tmp) [L774] FCALL setup() [L775] CALL runTest() [L757] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L804] COND TRUE waterLevel < 2 [L805] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L127] COND FALSE !(\read(pumpRunning)) [L134] COND TRUE \read(systemActive) [L136] FCALL processEnvironment() [L142] CALL __utac_acc__Specification3_spec__1() [L657] int tmp ; [L658] int tmp___0 ; [L659] int tmp___1 ; [L663] CALL, EXPR isMethaneLevelCritical() [L825] int retValue_acc ; [L828] retValue_acc = methaneLevelCritical [L829] return (retValue_acc); [L663] RET, EXPR isMethaneLevelCritical() [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L669] CALL, EXPR getWaterLevel() [L857] int retValue_acc ; [L860] retValue_acc = waterLevel [L861] return (retValue_acc); [L669] RET, EXPR getWaterLevel() [L669] tmp___0 = getWaterLevel() [L671] COND TRUE tmp___0 == 2 [L673] CALL, EXPR isPumpRunning() [L182] int retValue_acc ; [L185] retValue_acc = pumpRunning [L186] return (retValue_acc); [L673] RET, EXPR isPumpRunning() [L673] tmp___1 = isPumpRunning() [L675] COND FALSE !(\read(tmp___1)) [L679] CALL __automaton_fail() [L650] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 584 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 781 SDtfs, 665 SDslu, 751 SDs, 0 SdLazy, 1463 SolverSat, 214 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 77 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=435occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 161 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 807 NumberOfCodeBlocks, 807 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 632 ConstructedInterpolants, 0 QuantifiedInterpolants, 248668 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...