/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:05:10,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:05:10,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:05:10,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:05:10,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:05:11,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:05:11,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:05:11,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:05:11,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:05:11,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:05:11,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:05:11,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:05:11,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:05:11,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:05:11,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:05:11,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:05:11,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:05:11,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:05:11,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:05:11,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:05:11,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:05:11,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:05:11,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:05:11,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:05:11,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:05:11,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:05:11,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:05:11,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:05:11,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:05:11,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:05:11,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:05:11,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:05:11,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:05:11,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:05:11,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:05:11,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:05:11,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:05:11,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:05:11,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:05:11,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:05:11,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:05:11,070 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 18:05:11,120 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:05:11,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:05:11,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:05:11,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:05:11,124 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:05:11,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:05:11,124 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:05:11,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:05:11,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:05:11,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:05:11,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:05:11,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:05:11,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:05:11,127 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:05:11,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:05:11,127 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:05:11,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:05:11,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:05:11,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:05:11,128 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:05:11,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:05:11,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:05:11,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:05:11,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:05:11,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:05:11,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:05:11,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:05:11,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:05:11,130 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:05:11,130 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:05:11,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:05:11,581 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:05:11,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:05:11,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:05:11,591 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:05:11,592 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c [2020-09-24 18:05:11,677 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef86e1df8/03b09568599f44cc818d98ff33bfcbc0/FLAG341dbd652 [2020-09-24 18:05:12,279 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:05:12,280 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c [2020-09-24 18:05:12,295 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef86e1df8/03b09568599f44cc818d98ff33bfcbc0/FLAG341dbd652 [2020-09-24 18:05:12,571 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef86e1df8/03b09568599f44cc818d98ff33bfcbc0 [2020-09-24 18:05:12,585 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:05:12,591 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:05:12,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:05:12,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:05:12,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:05:12,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:05:12" (1/1) ... [2020-09-24 18:05:12,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14e6f847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:12, skipping insertion in model container [2020-09-24 18:05:12,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:05:12" (1/1) ... [2020-09-24 18:05:12,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:05:12,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:05:13,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:05:13,170 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:05:13,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:05:13,315 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:05:13,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:13 WrapperNode [2020-09-24 18:05:13,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:05:13,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:05:13,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:05:13,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:05:13,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:13" (1/1) ... [2020-09-24 18:05:13,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:13" (1/1) ... [2020-09-24 18:05:13,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:13" (1/1) ... [2020-09-24 18:05:13,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:13" (1/1) ... [2020-09-24 18:05:13,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:13" (1/1) ... [2020-09-24 18:05:13,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:13" (1/1) ... [2020-09-24 18:05:13,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:13" (1/1) ... [2020-09-24 18:05:13,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:05:13,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:05:13,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:05:13,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:05:13,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:13" (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 18:05:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:05:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:05:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:05:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:05:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:05:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:05:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 18:05:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:05:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 18:05:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:05:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:05:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:05:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:05:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:05:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:05:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:05:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:05:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:05:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:05:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:05:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:05:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:05:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:05:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:05:13,511 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:05:13,511 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:05:13,511 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:05:13,511 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:05:13,511 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:05:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:05:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:05:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:05:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:05:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:05:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:05:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:05:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:05:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:05:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:05:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:05:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:05:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:05:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:05:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:05:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:05:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:05:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:05:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:05:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:05:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:05:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:05:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:05:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:05:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:05:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:05:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:05:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:05:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:05:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:05:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 18:05:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:05:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 18:05:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:05:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:05:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:05:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:05:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:05:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:05:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:05:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:05:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:05:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:05:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:05:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:05:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:05:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:05:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:05:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:05:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:05:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:05:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:05:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:05:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:05:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:05:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:05:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:05:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:05:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:05:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:05:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:05:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:05:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:05:14,706 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:05:14,706 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:05:14,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:05:14 BoogieIcfgContainer [2020-09-24 18:05:14,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:05:14,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:05:14,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:05:14,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:05:14,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:05:12" (1/3) ... [2020-09-24 18:05:14,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c0ea76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:05:14, skipping insertion in model container [2020-09-24 18:05:14,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:13" (2/3) ... [2020-09-24 18:05:14,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c0ea76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:05:14, skipping insertion in model container [2020-09-24 18:05:14,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:05:14" (3/3) ... [2020-09-24 18:05:14,724 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product45.cil.c [2020-09-24 18:05:14,737 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:05:14,749 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:05:14,773 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:05:14,808 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:05:14,809 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:05:14,809 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:05:14,809 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:05:14,809 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:05:14,809 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:05:14,809 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:05:14,810 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:05:14,841 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-09-24 18:05:14,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 18:05:14,860 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:05:14,862 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:05:14,863 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:05:14,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:05:14,871 INFO L82 PathProgramCache]: Analyzing trace with hash 2095519096, now seen corresponding path program 1 times [2020-09-24 18:05:14,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:05:14,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1174912055] [2020-09-24 18:05:14,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:05:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:15,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:15,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:16,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:17,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:17,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:20,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:20,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 18:05:20,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:05:20,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-24 18:05:20,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:20,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:20,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:05:20,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:20,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 18:05:20,814 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:05:20,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:05:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:20,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:21,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:21,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:05:21,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:21,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-24 18:05:21,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:21,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:21,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:21,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:21,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:21,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:05:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:21,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:21,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:21,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:21,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:21,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:21,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:21,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:21,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:21,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:21,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:21,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:05:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:21,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:21,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:21,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:21,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:21,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:05:21,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:21,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:21,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:21,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:21,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:21,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:05:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:21,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:21,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:21,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:21,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:21,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:05:21,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:21,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:21,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:21,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:21,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:21,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:05:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:21,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:21,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:21,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:21,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:21,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:05:21,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:21,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:21,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:21,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:21,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:21,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:05:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:21,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:21,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:21,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:21,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:21,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:05:21,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:21,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:21,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:21,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:21,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:21,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:05:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:21,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:21,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:21,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:21,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:21,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:21,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:21,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:21,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:21,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:21,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:21,245 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 18:05:21,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1174912055] [2020-09-24 18:05:21,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:05:21,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:05:21,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934473059] [2020-09-24 18:05:21,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:05:21,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:05:21,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:05:21,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:05:21,280 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 3 states. [2020-09-24 18:05:23,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:05:23,167 INFO L93 Difference]: Finished difference Result 497 states and 590 transitions. [2020-09-24 18:05:23,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:05:23,169 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 18:05:23,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:05:23,192 INFO L225 Difference]: With dead ends: 497 [2020-09-24 18:05:23,192 INFO L226 Difference]: Without dead ends: 307 [2020-09-24 18:05:23,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:05:23,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-24 18:05:23,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 264. [2020-09-24 18:05:23,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-09-24 18:05:23,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 287 transitions. [2020-09-24 18:05:23,322 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 287 transitions. Word has length 142 [2020-09-24 18:05:23,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:05:23,323 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 287 transitions. [2020-09-24 18:05:23,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:05:23,323 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 287 transitions. [2020-09-24 18:05:23,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 18:05:23,336 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:05:23,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:05:23,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:05:23,341 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:05:23,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:05:23,342 INFO L82 PathProgramCache]: Analyzing trace with hash -89616240, now seen corresponding path program 1 times [2020-09-24 18:05:23,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:05:23,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1590417352] [2020-09-24 18:05:23,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:05:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:23,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:23,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:24,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:25,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:28,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:28,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 18:05:28,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:05:28,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-24 18:05:28,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:28,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:28,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 18:05:28,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-24 18:05:28,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:28,739 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:05:28,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:05:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:28,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:29,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:29,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:05:29,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:29,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-24 18:05:29,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:29,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:29,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:29,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 18:05:29,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:29,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:05:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:29,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:29,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:29,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:29,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:29,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:05:29,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:29,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:29,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:29,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:05:29,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:29,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:05:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:29,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:29,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:29,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:29,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:29,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:05:29,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:29,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:29,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:29,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:05:29,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:29,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:05:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:29,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:29,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:29,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:29,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:29,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 18:05:29,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:29,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:29,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:29,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:05:29,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:29,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:05:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:29,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:29,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:29,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:29,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:29,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:05:29,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:29,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:29,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:29,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:05:29,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:29,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:05:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:29,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:29,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:29,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:29,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:29,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:29,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:29,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:29,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:29,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:29,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:29,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:05:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:29,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:29,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:29,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:29,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:29,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:29,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:29,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:29,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:29,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:29,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:29,178 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 18:05:29,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1590417352] [2020-09-24 18:05:29,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:05:29,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:05:29,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542535371] [2020-09-24 18:05:29,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:05:29,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:05:29,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:05:29,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:05:29,185 INFO L87 Difference]: Start difference. First operand 264 states and 287 transitions. Second operand 4 states. [2020-09-24 18:05:29,659 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:05:30,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:05:30,767 INFO L93 Difference]: Finished difference Result 461 states and 531 transitions. [2020-09-24 18:05:30,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:05:30,769 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 18:05:30,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:05:30,774 INFO L225 Difference]: With dead ends: 461 [2020-09-24 18:05:30,774 INFO L226 Difference]: Without dead ends: 307 [2020-09-24 18:05:30,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:05:30,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-24 18:05:30,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 264. [2020-09-24 18:05:30,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-09-24 18:05:30,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 286 transitions. [2020-09-24 18:05:30,829 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 286 transitions. Word has length 143 [2020-09-24 18:05:30,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:05:30,830 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 286 transitions. [2020-09-24 18:05:30,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:05:30,830 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 286 transitions. [2020-09-24 18:05:30,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 18:05:30,832 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:05:30,832 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] [2020-09-24 18:05:30,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:05:30,833 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:05:30,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:05:30,833 INFO L82 PathProgramCache]: Analyzing trace with hash -538444440, now seen corresponding path program 1 times [2020-09-24 18:05:30,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:05:30,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851075562] [2020-09-24 18:05:30,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:05:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:30,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:31,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:31,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:31,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:35,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:35,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:35,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-24 18:05:35,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:05:35,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-24 18:05:35,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:35,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:35,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:05:35,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:05:35,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:36,189 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:05:36,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:05:36,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:36,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:36,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:36,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:05:36,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:36,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 18:05:36,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:36,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:36,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:36,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:36,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:36,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:05:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:36,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:36,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:36,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:36,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:36,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:05:36,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:36,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:36,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:36,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:36,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:36,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:05:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:36,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:36,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:36,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:36,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:36,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:36,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:36,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:36,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:36,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:36,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:36,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:05:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:36,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:36,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:36,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:36,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:36,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:05:36,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:36,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:36,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:36,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:36,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:36,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:05:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:36,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:36,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:36,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:36,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:36,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:36,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:36,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:36,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:36,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:36,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:36,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 18:05:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:36,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:36,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:36,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:36,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 18:05:36,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:05:36,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 18:05:36,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:36,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:36,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 18:05:36,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:36,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:36,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:05:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:36,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:36,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:36,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 18:05:36,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:36,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:05:36,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:36,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:36,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:36,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:36,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:36,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:05:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:36,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:36,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:36,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:36,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:36,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:05:36,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:36,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:36,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:36,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:36,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:05:36,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:05:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:36,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:36,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:36,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:36,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:36,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:36,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:36,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:36,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:36,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:36,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:36,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 18:05:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:36,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:36,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:36,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:36,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:36,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:36,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:36,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:36,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:36,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:36,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:36,470 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 18:05:36,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851075562] [2020-09-24 18:05:36,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:05:36,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:05:36,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005486935] [2020-09-24 18:05:36,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:05:36,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:05:36,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:05:36,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:05:36,475 INFO L87 Difference]: Start difference. First operand 264 states and 286 transitions. Second operand 5 states. [2020-09-24 18:05:37,357 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:05:38,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:05:38,693 INFO L93 Difference]: Finished difference Result 438 states and 499 transitions. [2020-09-24 18:05:38,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:05:38,694 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 18:05:38,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:05:38,701 INFO L225 Difference]: With dead ends: 438 [2020-09-24 18:05:38,701 INFO L226 Difference]: Without dead ends: 314 [2020-09-24 18:05:38,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:05:38,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-09-24 18:05:38,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 254. [2020-09-24 18:05:38,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-24 18:05:38,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 273 transitions. [2020-09-24 18:05:38,755 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 273 transitions. Word has length 156 [2020-09-24 18:05:38,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:05:38,756 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 273 transitions. [2020-09-24 18:05:38,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:05:38,756 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 273 transitions. [2020-09-24 18:05:38,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-24 18:05:38,758 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:05:38,758 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] [2020-09-24 18:05:38,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:05:38,759 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:05:38,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:05:38,759 INFO L82 PathProgramCache]: Analyzing trace with hash 2103188336, now seen corresponding path program 1 times [2020-09-24 18:05:38,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:05:38,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76263912] [2020-09-24 18:05:38,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:05:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:38,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:38,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:39,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:40,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:41,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:41,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:42,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:43,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:43,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 18:05:43,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 18:05:43,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-24 18:05:43,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:43,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:05:43,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-24 18:05:43,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:05:43,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:44,166 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:05:44,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:05:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:44,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:44,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:44,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:05:44,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:44,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 18:05:44,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:44,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:44,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:44,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:44,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:44,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:05:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:44,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:44,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:44,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:44,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:44,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:05:44,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:44,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:44,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:44,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:44,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:44,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:05:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:44,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:44,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:44,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:44,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:44,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:05:44,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:44,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:44,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:44,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:44,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:44,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:05:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:44,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:44,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:44,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:44,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:44,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:05:44,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:44,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:44,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:44,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:44,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:44,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:05:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:44,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:44,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:44,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:44,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:44,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:05:44,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:44,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:44,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:44,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:44,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:44,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 18:05:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:44,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:44,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:44,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 18:05:44,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:44,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:05:44,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:44,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:05:44,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 18:05:44,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:05:44,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:44,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:05:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:44,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:44,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:44,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 18:05:44,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:44,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 18:05:44,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:44,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:05:44,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 18:05:44,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 18:05:44,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:05:44,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:05:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:44,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:44,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:44,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:44,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:44,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:05:44,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:44,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:44,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:44,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:05:44,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:05:44,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-24 18:05:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:44,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:44,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:44,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:44,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:44,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:44,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:44,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:44,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:44,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:44,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:44,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 18:05:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:44,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:44,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:44,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:44,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:44,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:44,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:44,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:44,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:44,528 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 18:05:44,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76263912] [2020-09-24 18:05:44,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:05:44,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:05:44,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751019983] [2020-09-24 18:05:44,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:05:44,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:05:44,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:05:44,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:05:44,531 INFO L87 Difference]: Start difference. First operand 254 states and 273 transitions. Second operand 7 states. [2020-09-24 18:05:45,064 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:05:46,845 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:05:47,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:05:47,654 INFO L93 Difference]: Finished difference Result 578 states and 657 transitions. [2020-09-24 18:05:47,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:05:47,655 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2020-09-24 18:05:47,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:05:47,664 INFO L225 Difference]: With dead ends: 578 [2020-09-24 18:05:47,664 INFO L226 Difference]: Without dead ends: 434 [2020-09-24 18:05:47,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-24 18:05:47,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-09-24 18:05:47,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 375. [2020-09-24 18:05:47,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-24 18:05:47,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 402 transitions. [2020-09-24 18:05:47,746 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 402 transitions. Word has length 165 [2020-09-24 18:05:47,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:05:47,746 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 402 transitions. [2020-09-24 18:05:47,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:05:47,747 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 402 transitions. [2020-09-24 18:05:47,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-24 18:05:47,749 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:05:47,749 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:05:47,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:05:47,750 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:05:47,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:05:47,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1530420149, now seen corresponding path program 1 times [2020-09-24 18:05:47,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:05:47,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105373807] [2020-09-24 18:05:47,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:05:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:47,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:48,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:48,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:49,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:49,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:52,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:52,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-24 18:05:52,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:05:52,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 18:05:52,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:05:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-24 18:05:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 18:05:52,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:53,185 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:05:53,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:05:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:53,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:53,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:53,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:05:53,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:53,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 18:05:53,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:53,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:53,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:53,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:53,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:53,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:05:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:53,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:53,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:53,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:53,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:53,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:53,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:53,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:53,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:53,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:53,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:53,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:05:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:53,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:53,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:53,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:53,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:53,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:05:53,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:53,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:53,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:05:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:53,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:53,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:53,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:53,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:53,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:05:53,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:53,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:53,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:53,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:53,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:53,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:05:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:53,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:53,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:53,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:53,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:53,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:05:53,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:53,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:53,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 18:05:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:53,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:53,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:53,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:53,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 18:05:53,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:05:53,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 18:05:53,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:53,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:53,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:53,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:05:53,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:53,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:05:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:53,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:53,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:53,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 18:05:53,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:53,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 18:05:53,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:53,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:53,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:53,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:05:53,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:53,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:05:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:53,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:53,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:53,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:05:53,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:53,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 18:05:53,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:53,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:53,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:53,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 18:05:53,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:53,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:05:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:53,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:53,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:53,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:05:53,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:53,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:05:53,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:53,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:53,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:05:53,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:53,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:53,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:53,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:53,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:53,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:05:53,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:53,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:53,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:53,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:05:53,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:53,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 18:05:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:53,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:53,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:53,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:53,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:53,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:05:53,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:53,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:53,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:53,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:05:53,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:53,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 18:05:53,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:53,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:53,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:53,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:53,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:53,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 18:05:53,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:53,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:05:53,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:53,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:05:53,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:53,669 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 18:05:53,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1105373807] [2020-09-24 18:05:53,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:05:53,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:05:53,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335343553] [2020-09-24 18:05:53,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:05:53,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:05:53,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:05:53,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:05:53,672 INFO L87 Difference]: Start difference. First operand 375 states and 402 transitions. Second operand 9 states. [2020-09-24 18:05:54,234 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:05:55,794 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:05:56,142 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:05:56,487 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:05:56,836 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:05:57,173 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:05:57,590 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:05:57,889 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:05:58,272 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:05:59,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:05:59,210 INFO L93 Difference]: Finished difference Result 437 states and 486 transitions. [2020-09-24 18:05:59,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 18:05:59,211 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 189 [2020-09-24 18:05:59,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:05:59,216 INFO L225 Difference]: With dead ends: 437 [2020-09-24 18:05:59,216 INFO L226 Difference]: Without dead ends: 434 [2020-09-24 18:05:59,217 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 18:05:59,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-09-24 18:05:59,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 375. [2020-09-24 18:05:59,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-24 18:05:59,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 401 transitions. [2020-09-24 18:05:59,266 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 401 transitions. Word has length 189 [2020-09-24 18:05:59,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:05:59,267 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 401 transitions. [2020-09-24 18:05:59,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:05:59,267 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 401 transitions. [2020-09-24 18:05:59,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 18:05:59,270 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:05:59,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:05:59,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:05:59,271 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:05:59,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:05:59,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1054820199, now seen corresponding path program 1 times [2020-09-24 18:05:59,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:05:59,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [239219316] [2020-09-24 18:05:59,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:05:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:59,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:59,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking...