/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_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:04:46,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:04:46,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:04:46,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:04:46,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:04:46,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:04:46,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:04:46,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:04:46,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:04:46,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:04:46,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:04:46,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:04:46,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:04:46,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:04:46,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:04:46,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:04:46,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:04:46,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:04:46,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:04:46,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:04:46,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:04:46,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:04:46,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:04:46,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:04:46,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:04:46,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:04:46,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:04:46,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:04:46,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:04:46,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:04:46,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:04:46,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:04:46,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:04:46,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:04:46,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:04:46,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:04:46,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:04:46,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:04:46,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:04:46,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:04:46,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:04:46,526 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 18:04:46,552 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:04:46,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:04:46,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:04:46,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:04:46,555 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:04:46,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:04:46,555 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:04:46,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:04:46,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:04:46,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:04:46,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:04:46,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:04:46,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:04:46,557 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:04:46,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:04:46,557 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:04:46,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:04:46,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:04:46,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:04:46,558 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:04:46,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:04:46,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:04:46,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:04:46,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:04:46,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:04:46,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:04:46,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:04:46,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:04:46,560 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:04:46,560 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 18:04:47,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:04:47,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:04:47,041 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:04:47,043 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:04:47,045 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:04:47,046 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c [2020-09-24 18:04:47,140 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a2ad4c65/2601b380ef6948768020c84681fa55ab/FLAG09fbe55a4 [2020-09-24 18:04:47,776 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:04:47,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c [2020-09-24 18:04:47,791 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a2ad4c65/2601b380ef6948768020c84681fa55ab/FLAG09fbe55a4 [2020-09-24 18:04:48,050 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a2ad4c65/2601b380ef6948768020c84681fa55ab [2020-09-24 18:04:48,064 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:04:48,070 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:04:48,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:04:48,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:04:48,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:04:48,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:04:48" (1/1) ... [2020-09-24 18:04:48,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387f035d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:48, skipping insertion in model container [2020-09-24 18:04:48,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:04:48" (1/1) ... [2020-09-24 18:04:48,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:04:48,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:04:48,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:04:48,624 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:04:48,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:04:48,774 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:04:48,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:48 WrapperNode [2020-09-24 18:04:48,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:04:48,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:04:48,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:04:48,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:04:48,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:48" (1/1) ... [2020-09-24 18:04:48,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:48" (1/1) ... [2020-09-24 18:04:48,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:48" (1/1) ... [2020-09-24 18:04:48,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:48" (1/1) ... [2020-09-24 18:04:48,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:48" (1/1) ... [2020-09-24 18:04:48,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:48" (1/1) ... [2020-09-24 18:04:48,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:48" (1/1) ... [2020-09-24 18:04:48,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:04:48,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:04:48,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:04:48,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:04:48,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:04:48,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:04:48,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:04:48,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:04:48,945 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:04:48,945 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:04:48,945 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:04:48,945 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:04:48,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:04:48,946 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:04:48,946 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:04:48,946 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:04:48,947 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:04:48,947 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:04:48,947 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:04:48,947 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:04:48,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:04:48,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:04:48,948 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:04:48,948 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:04:48,948 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:04:48,948 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:04:48,948 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:04:48,948 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:04:48,949 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:04:48,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:04:48,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:04:48,949 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:04:48,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:04:48,950 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:04:48,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:04:48,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:04:48,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:04:48,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:04:48,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:04:48,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:04:48,951 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:04:48,951 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:04:48,951 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:04:48,951 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:04:48,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:04:48,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:04:48,952 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:04:48,952 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:04:48,952 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:04:48,952 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:04:48,952 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:04:48,952 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:04:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:04:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:04:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:04:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:04:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:04:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:04:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:04:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:04:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:04:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:04:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:04:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:04:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:04:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:04:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:04:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:04:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:04:48,955 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:04:48,955 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:04:48,955 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:04:48,955 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:04:48,955 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:04:48,955 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:04:48,955 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:04:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:04:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:04:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:04:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:04:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:04:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:04:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:04:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:04:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:04:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:04:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:04:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:04:48,958 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:04:48,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:04:48,958 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:04:48,958 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:04:48,958 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:04:48,958 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:04:48,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:04:48,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:04:48,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:04:50,118 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:04:50,118 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:04:50,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:04:50 BoogieIcfgContainer [2020-09-24 18:04:50,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:04:50,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:04:50,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:04:50,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:04:50,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:04:48" (1/3) ... [2020-09-24 18:04:50,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649fdf8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:04:50, skipping insertion in model container [2020-09-24 18:04:50,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:48" (2/3) ... [2020-09-24 18:04:50,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649fdf8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:04:50, skipping insertion in model container [2020-09-24 18:04:50,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:04:50" (3/3) ... [2020-09-24 18:04:50,135 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product38.cil.c [2020-09-24 18:04:50,146 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:04:50,157 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:04:50,180 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:04:50,219 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:04:50,220 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:04:50,220 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:04:50,220 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:04:50,220 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:04:50,220 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:04:50,220 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:04:50,221 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:04:50,251 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-24 18:04:50,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 18:04:50,270 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:04:50,272 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 18:04:50,273 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:04:50,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:04:50,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1971275482, now seen corresponding path program 1 times [2020-09-24 18:04:50,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:04:50,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702673294] [2020-09-24 18:04:50,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:04:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:50,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:50,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:52,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:53,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:55,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:55,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 18:04:55,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:04:55,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 18:04:55,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:55,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:55,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:04:55,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:55,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-24 18:04:56,155 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:04:56,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:04:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:56,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:56,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:56,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:04:56,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:56,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-24 18:04:56,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:56,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:56,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:56,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:56,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:56,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:04:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:56,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:56,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:56,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:04:56,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:56,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:04:56,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:56,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:56,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:56,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:56,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:56,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:04:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:56,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:56,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:56,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:04:56,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:56,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:04:56,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:56,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:56,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:04:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:56,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:56,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:56,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:04:56,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:56,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:04:56,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:56,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:56,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:56,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:56,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:56,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:04:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:56,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:56,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:56,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:04:56,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:56,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:04:56,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:56,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:56,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:56,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:56,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:56,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:04:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:56,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:56,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:56,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:04:56,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:56,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:04:56,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:56,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:56,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:04:56,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:56,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:04:56,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:04:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:56,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:56,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:56,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:04:56,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:56,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:04:56,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:56,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:56,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:04:56,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:56,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:56,522 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 18:04:56,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702673294] [2020-09-24 18:04:56,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:04:56,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:04:56,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095808966] [2020-09-24 18:04:56,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:04:56,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:04:56,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:04:56,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:04:56,558 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 3 states. [2020-09-24 18:04:58,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:04:58,072 INFO L93 Difference]: Finished difference Result 486 states and 576 transitions. [2020-09-24 18:04:58,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:04:58,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 18:04:58,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:04:58,104 INFO L225 Difference]: With dead ends: 486 [2020-09-24 18:04:58,105 INFO L226 Difference]: Without dead ends: 301 [2020-09-24 18:04:58,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:04:58,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-24 18:04:58,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 259. [2020-09-24 18:04:58,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-24 18:04:58,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 280 transitions. [2020-09-24 18:04:58,252 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 280 transitions. Word has length 142 [2020-09-24 18:04:58,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:04:58,253 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 280 transitions. [2020-09-24 18:04:58,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:04:58,253 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 280 transitions. [2020-09-24 18:04:58,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 18:04:58,258 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:04:58,258 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 18:04:58,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:04:58,259 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:04:58,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:04:58,260 INFO L82 PathProgramCache]: Analyzing trace with hash 633899820, now seen corresponding path program 1 times [2020-09-24 18:04:58,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:04:58,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [582975852] [2020-09-24 18:04:58,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:04:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:58,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:58,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:00,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:00,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:01,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:03,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:03,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 18:05:03,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:05:03,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 18:05:03,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:03,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:03,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:05:03,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:05:03,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:03,610 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:05:03,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:05:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:03,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:03,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:03,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:05:03,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:03,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 18:05:03,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:03,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:03,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:03,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:03,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:03,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:05:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:03,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:03,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:03,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:03,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:03,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:03,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:03,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:03,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:03,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:03,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:03,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:05:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:03,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:03,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:03,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:03,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:03,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:03,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:03,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:03,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:03,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:03,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:03,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:05:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:03,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:03,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:03,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:03,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:03,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:05:03,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:03,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:03,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:03,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:03,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:03,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:05:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:03,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:03,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:03,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:03,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:03,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:03,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:03,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:03,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:03,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:03,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:03,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:05:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:03,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:03,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:03,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:03,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:03,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:03,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:03,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:03,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:03,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:03,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:03,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:05:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:03,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:03,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:03,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:03,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:03,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:05:03,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:03,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:03,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:03,839 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 18:05:03,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [582975852] [2020-09-24 18:05:03,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:05:03,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:05:03,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499751888] [2020-09-24 18:05:03,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:05:03,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:05:03,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:05:03,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:05:03,846 INFO L87 Difference]: Start difference. First operand 259 states and 280 transitions. Second operand 4 states. [2020-09-24 18:05:04,533 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:05:05,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:05:05,605 INFO L93 Difference]: Finished difference Result 399 states and 447 transitions. [2020-09-24 18:05:05,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:05:05,606 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 18:05:05,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:05:05,611 INFO L225 Difference]: With dead ends: 399 [2020-09-24 18:05:05,612 INFO L226 Difference]: Without dead ends: 284 [2020-09-24 18:05:05,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 18:05:05,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-24 18:05:05,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 249. [2020-09-24 18:05:05,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-24 18:05:05,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 267 transitions. [2020-09-24 18:05:05,665 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 267 transitions. Word has length 143 [2020-09-24 18:05:05,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:05:05,666 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 267 transitions. [2020-09-24 18:05:05,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:05:05,666 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 267 transitions. [2020-09-24 18:05:05,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 18:05:05,670 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:05:05,671 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 18:05:05,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:05:05,671 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:05:05,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:05:05,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1196513202, now seen corresponding path program 1 times [2020-09-24 18:05:05,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:05:05,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836533004] [2020-09-24 18:05:05,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:05:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:05,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:06,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:06,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:08,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:10,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:10,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 18:05:10,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:05:10,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-24 18:05:10,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:10,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:10,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 18:05:10,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:05:10,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:11,126 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:05:11,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:05:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:11,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:11,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:11,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:05:11,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:11,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 18:05:11,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:11,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:11,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:11,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:11,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:11,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:05:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:11,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:11,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:11,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:11,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:11,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:11,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:11,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:11,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:11,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:11,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:11,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:05:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:11,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:11,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:11,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:11,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:11,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:11,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:11,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:11,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:11,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:05:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:11,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:11,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:11,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:11,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:11,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:05:11,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:11,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:11,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:11,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:11,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:11,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:05:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:11,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:11,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:11,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:11,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:11,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:11,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:11,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:11,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:11,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:11,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:11,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:05:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:11,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:11,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:11,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:05:11,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:11,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:05:11,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:11,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:11,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:11,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:05:11,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:11,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:05:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:11,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:11,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:11,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:11,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:11,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:05:11,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:11,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:11,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:11,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:11,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:11,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 18:05:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:11,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:11,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:11,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:11,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:11,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 18:05:11,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:11,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:11,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:11,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:11,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 44 [2020-09-24 18:05:11,459 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 18:05:11,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [836533004] [2020-09-24 18:05:11,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:05:11,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:05:11,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427462253] [2020-09-24 18:05:11,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:05:11,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:05:11,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:05:11,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:05:11,472 INFO L87 Difference]: Start difference. First operand 249 states and 267 transitions. Second operand 5 states. [2020-09-24 18:05:11,975 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:05:13,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:05:13,057 INFO L93 Difference]: Finished difference Result 445 states and 509 transitions. [2020-09-24 18:05:13,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:05:13,058 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 18:05:13,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:05:13,063 INFO L225 Difference]: With dead ends: 445 [2020-09-24 18:05:13,063 INFO L226 Difference]: Without dead ends: 306 [2020-09-24 18:05:13,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:05:13,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-24 18:05:13,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 249. [2020-09-24 18:05:13,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-24 18:05:13,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 266 transitions. [2020-09-24 18:05:13,104 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 266 transitions. Word has length 156 [2020-09-24 18:05:13,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:05:13,105 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 266 transitions. [2020-09-24 18:05:13,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:05:13,105 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 266 transitions. [2020-09-24 18:05:13,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-24 18:05:13,108 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:05:13,108 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] [2020-09-24 18:05:13,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:05:13,109 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:05:13,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:05:13,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1224764540, now seen corresponding path program 1 times [2020-09-24 18:05:13,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:05:13,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [577003843] [2020-09-24 18:05:13,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:05:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:13,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:13,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:13,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:15,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:16,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:16,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:16,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:18,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:18,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 18:05:18,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 18:05:18,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-24 18:05:18,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:18,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:05:18,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-24 18:05:18,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:05:18,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:18,539 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:05:18,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:05:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:18,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:18,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:18,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:05:18,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:18,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-24 18:05:18,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:18,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:18,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:18,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:05:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:18,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:18,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:18,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:18,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:18,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:18,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:18,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:18,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:18,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:18,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:18,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:05:18,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:18,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:18,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:18,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:18,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:18,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:18,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:18,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:18,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:18,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:18,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:18,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:05:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:18,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:18,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:18,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:18,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:18,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:18,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:18,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:18,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:18,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:18,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:18,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:05:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:18,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:18,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:18,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:18,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:18,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:05:18,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:18,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:18,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:18,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:18,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:18,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:05:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:18,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:18,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:18,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:05:18,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:18,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:05:18,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:18,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:18,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:18,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:18,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:18,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:05:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:18,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:18,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:18,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 18:05:18,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:18,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:05:18,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:18,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:05:18,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 18:05:18,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:05:18,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:18,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:05:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:18,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:18,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:18,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 18:05:18,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:18,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:05:18,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:18,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:05:18,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 18:05:18,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 18:05:18,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:18,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:05:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:18,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:18,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:18,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:18,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:18,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:05:18,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:18,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:18,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:18,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:05:18,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:18,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 18:05:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:18,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:18,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:18,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:18,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:18,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:18,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:18,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:18,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:18,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:18,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:18,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 18:05:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:18,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:18,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:18,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:18,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:18,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:18,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:18,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:18,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:18,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:18,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:18,904 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 18:05:18,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [577003843] [2020-09-24 18:05:18,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:05:18,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:05:18,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544414099] [2020-09-24 18:05:18,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:05:18,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:05:18,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:05:18,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:05:18,908 INFO L87 Difference]: Start difference. First operand 249 states and 266 transitions. Second operand 7 states. [2020-09-24 18:05:19,704 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:05:21,316 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:05:22,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:05:22,352 INFO L93 Difference]: Finished difference Result 625 states and 739 transitions. [2020-09-24 18:05:22,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 18:05:22,358 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-09-24 18:05:22,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:05:22,366 INFO L225 Difference]: With dead ends: 625 [2020-09-24 18:05:22,366 INFO L226 Difference]: Without dead ends: 486 [2020-09-24 18:05:22,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-24 18:05:22,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-09-24 18:05:22,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 359. [2020-09-24 18:05:22,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-09-24 18:05:22,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 385 transitions. [2020-09-24 18:05:22,445 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 385 transitions. Word has length 169 [2020-09-24 18:05:22,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:05:22,473 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 385 transitions. [2020-09-24 18:05:22,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:05:22,474 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 385 transitions. [2020-09-24 18:05:22,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-24 18:05:22,478 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:05:22,478 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] [2020-09-24 18:05:22,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:05:22,479 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:05:22,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:05:22,480 INFO L82 PathProgramCache]: Analyzing trace with hash -984286957, now seen corresponding path program 1 times [2020-09-24 18:05:22,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:05:22,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308200276] [2020-09-24 18:05:22,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:05:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:22,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:23,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:23,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:24,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:26,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:27,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:27,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-24 18:05:27,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:05:27,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-24 18:05:27,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:05:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-24 18:05:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 18:05:27,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:27,909 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:05:27,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:05:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:27,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:28,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:28,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:05:28,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:28,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 18:05:28,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:28,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:28,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:28,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:28,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:28,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:05:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:28,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:28,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:28,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:28,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:28,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:05:28,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:28,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:28,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:28,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:28,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:28,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:05:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:28,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:28,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:28,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:28,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:28,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:05:28,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:28,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:28,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:28,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:28,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:28,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:05:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:28,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:28,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:28,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:28,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:28,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:05:28,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:28,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:28,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:28,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:28,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:28,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:05:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:28,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:28,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:28,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:28,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:28,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:05:28,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:28,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:28,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:28,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:28,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:28,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:05:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:28,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:28,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:28,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:05:28,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:28,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:28,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:28,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:28,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:28,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:28,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:28,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:05:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:28,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:28,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:28,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:28,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 18:05:28,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:05:28,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 18:05:28,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:28,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:28,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:28,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:05:28,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:28,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:05:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:28,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:28,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:28,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 18:05:28,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:28,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 18:05:28,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:28,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:28,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:28,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:05:28,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:28,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:05:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:28,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:28,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:28,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:05:28,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:28,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 18:05:28,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:28,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:28,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:28,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 18:05:28,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:28,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:05:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:28,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:28,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:28,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:05:28,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:28,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:05:28,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:28,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:28,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:28,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:28,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:28,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:05:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:28,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:28,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:28,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:28,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:28,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:28,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:28,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:28,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:28,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:05:28,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:28,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 18:05:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:28,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:28,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:28,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:28,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:28,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:05:28,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:28,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:28,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:28,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:05:28,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:28,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 18:05:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:28,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:28,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:28,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:28,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:28,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:05:28,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:28,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:05:28,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:28,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:05:28,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:28,400 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 18:05:28,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308200276] [2020-09-24 18:05:28,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:05:28,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:05:28,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609895806] [2020-09-24 18:05:28,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:05:28,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:05:28,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:05:28,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:05:28,403 INFO L87 Difference]: Start difference. First operand 359 states and 385 transitions. Second operand 10 states. [2020-09-24 18:05:28,967 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:05:30,537 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:05:30,828 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:05:31,168 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:05:31,477 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:05:31,803 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:05:32,153 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:05:32,448 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:05:32,766 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:05:33,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:05:33,984 INFO L93 Difference]: Finished difference Result 489 states and 572 transitions. [2020-09-24 18:05:33,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 18:05:33,985 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 193 [2020-09-24 18:05:33,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:05:33,989 INFO L225 Difference]: With dead ends: 489 [2020-09-24 18:05:33,990 INFO L226 Difference]: Without dead ends: 486 [2020-09-24 18:05:33,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 18:05:33,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-09-24 18:05:34,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 359. [2020-09-24 18:05:34,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-09-24 18:05:34,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 384 transitions. [2020-09-24 18:05:34,041 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 384 transitions. Word has length 193 [2020-09-24 18:05:34,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:05:34,042 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 384 transitions. [2020-09-24 18:05:34,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:05:34,042 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 384 transitions. [2020-09-24 18:05:34,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 18:05:34,044 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:05:34,045 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] [2020-09-24 18:05:34,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:05:34,045 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:05:34,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:05:34,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1132097966, now seen corresponding path program 1 times [2020-09-24 18:05:34,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:05:34,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1896723944] [2020-09-24 18:05:34,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:05:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:34,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:34,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking...