/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:40:35,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:40:35,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:40:36,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:40:36,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:40:36,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:40:36,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:40:36,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:40:36,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:40:36,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:40:36,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:40:36,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:40:36,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:40:36,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:40:36,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:40:36,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:40:36,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:40:36,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:40:36,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:40:36,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:40:36,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:40:36,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:40:36,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:40:36,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:40:36,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:40:36,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:40:36,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:40:36,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:40:36,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:40:36,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:40:36,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:40:36,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:40:36,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:40:36,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:40:36,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:40:36,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:40:36,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:40:36,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:40:36,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:40:36,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:40:36,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:40:36,086 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:40:36,131 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:40:36,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:40:36,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:40:36,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:40:36,135 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:40:36,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:40:36,135 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:40:36,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:40:36,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:40:36,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:40:36,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:40:36,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:40:36,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:40:36,138 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:40:36,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:40:36,138 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:40:36,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:40:36,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:40:36,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:40:36,139 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:40:36,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:40:36,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:40:36,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:40:36,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:40:36,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:40:36,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:40:36,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:40:36,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:40:36,141 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:40:36,141 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:40:36,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:40:36,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:40:36,616 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:40:36,619 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:40:36,619 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:40:36,620 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product39.cil.c [2020-09-25 00:40:36,697 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ac178d345/925ca9ddc4764fa49aef106ffcc1aaaa/FLAG6df126a17 [2020-09-25 00:40:37,334 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:40:37,335 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product39.cil.c [2020-09-25 00:40:37,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ac178d345/925ca9ddc4764fa49aef106ffcc1aaaa/FLAG6df126a17 [2020-09-25 00:40:37,549 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ac178d345/925ca9ddc4764fa49aef106ffcc1aaaa [2020-09-25 00:40:37,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:40:37,572 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:40:37,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:40:37,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:40:37,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:40:37,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:40:37" (1/1) ... [2020-09-25 00:40:37,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742dacf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:37, skipping insertion in model container [2020-09-25 00:40:37,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:40:37" (1/1) ... [2020-09-25 00:40:37,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:40:37,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:40:38,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:40:38,193 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:40:38,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:40:38,333 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:40:38,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:38 WrapperNode [2020-09-25 00:40:38,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:40:38,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:40:38,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:40:38,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:40:38,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:38" (1/1) ... [2020-09-25 00:40:38,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:38" (1/1) ... [2020-09-25 00:40:38,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:38" (1/1) ... [2020-09-25 00:40:38,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:38" (1/1) ... [2020-09-25 00:40:38,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:38" (1/1) ... [2020-09-25 00:40:38,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:38" (1/1) ... [2020-09-25 00:40:38,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:38" (1/1) ... [2020-09-25 00:40:38,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:40:38,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:40:38,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:40:38,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:40:38,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:40:38,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:40:38,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:40:38,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:40:38,550 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:40:38,550 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:40:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:40:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:40:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:40:38,552 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:40:38,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:40:38,552 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:40:38,553 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:40:38,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:40:38,553 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:40:38,553 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:40:38,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 00:40:38,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 00:40:38,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:40:38,555 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:40:38,555 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:40:38,556 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:40:38,556 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:40:38,556 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:40:38,557 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:40:38,557 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:40:38,557 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:40:38,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:40:38,558 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:40:38,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:40:38,558 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 00:40:38,558 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:40:38,558 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:40:38,559 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:40:38,559 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:40:38,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:40:38,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:40:38,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:40:38,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:40:38,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:40:38,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:40:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:40:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:40:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:40:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:40:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:40:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:40:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:40:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:40:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:40:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:40:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:40:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:40:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:40:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:40:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:40:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:40:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 00:40:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:40:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:40:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:40:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:40:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:40:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:40:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:40:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:40:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 00:40:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 00:40:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:40:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:40:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:40:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:40:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:40:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:40:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:40:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:40:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:40:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:40:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:40:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:40:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:40:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:40:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:40:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:40:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:40:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:40:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:40:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:40:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:40:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:40:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:40:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:40:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:40:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:40:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:40:39,866 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:40:39,866 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:40:39,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:40:39 BoogieIcfgContainer [2020-09-25 00:40:39,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:40:39,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:40:39,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:40:39,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:40:39,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:40:37" (1/3) ... [2020-09-25 00:40:39,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734527b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:40:39, skipping insertion in model container [2020-09-25 00:40:39,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:38" (2/3) ... [2020-09-25 00:40:39,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734527b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:40:39, skipping insertion in model container [2020-09-25 00:40:39,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:40:39" (3/3) ... [2020-09-25 00:40:39,885 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product39.cil.c [2020-09-25 00:40:39,898 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:40:39,910 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:40:39,934 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:40:39,969 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:40:39,969 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:40:39,969 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:40:39,969 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:40:39,970 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:40:39,970 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:40:39,970 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:40:39,970 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:40:40,001 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-25 00:40:40,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 00:40:40,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:40:40,021 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] [2020-09-25 00:40:40,022 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:40:40,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:40:40,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1902377435, now seen corresponding path program 1 times [2020-09-25 00:40:40,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:40:40,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835769504] [2020-09-25 00:40:40,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:40:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:40,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:40,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:42,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:43,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:44,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:45,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:45,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 00:40:45,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:40:45,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 00:40:45,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:45,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:40:45,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-25 00:40:45,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:40:45,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:40:46,148 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:40:46,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:40:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:46,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:46,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:46,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:40:46,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:46,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-25 00:40:46,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:46,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:46,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:40:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:46,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:46,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:46,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:46,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:46,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:40:46,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:46,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:46,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:46,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:46,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:46,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:40:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:46,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:46,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:46,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:46,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:46,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:46,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:46,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:46,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:46,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:46,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:46,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:40:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:46,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:46,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:46,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:46,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:46,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 00:40:46,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:46,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:46,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:46,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:46,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:46,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:40:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:46,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:46,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:46,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:46,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:46,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:46,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:46,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:46,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:46,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:46,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:46,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:40:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:46,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:46,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:46,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:46,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:46,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:46,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:46,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:46,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:46,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:46,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:46,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 00:40:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:46,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:46,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:46,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:46,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:46,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:40:46,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:46,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:40:46,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:46,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:40:46,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:46,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 00:40:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:46,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:46,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:46,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:46,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:46,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:40:46,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:46,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:46,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:46,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:40:46,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:46,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:40:46,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835769504] [2020-09-25 00:40:46,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:40:46,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:40:46,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266345520] [2020-09-25 00:40:46,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:40:46,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:40:46,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:40:46,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:40:46,612 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 9 states. [2020-09-25 00:40:47,360 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:40:48,677 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:48,960 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:40:49,277 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:49,589 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:40:49,882 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:50,610 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:40:50,952 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:51,290 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:40:52,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:40:52,374 INFO L93 Difference]: Finished difference Result 600 states and 746 transitions. [2020-09-25 00:40:52,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 00:40:52,376 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 00:40:52,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:40:52,398 INFO L225 Difference]: With dead ends: 600 [2020-09-25 00:40:52,398 INFO L226 Difference]: Without dead ends: 408 [2020-09-25 00:40:52,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 00:40:52,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-09-25 00:40:52,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 355. [2020-09-25 00:40:52,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-25 00:40:52,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 400 transitions. [2020-09-25 00:40:52,548 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 400 transitions. Word has length 148 [2020-09-25 00:40:52,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:40:52,549 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 400 transitions. [2020-09-25 00:40:52,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:40:52,549 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 400 transitions. [2020-09-25 00:40:52,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 00:40:52,555 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:40:52,556 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:40:52,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:40:52,557 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:40:52,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:40:52,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1492425951, now seen corresponding path program 1 times [2020-09-25 00:40:52,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:40:52,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [61821426] [2020-09-25 00:40:52,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:40:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:52,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:52,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:52,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:53,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:57,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:57,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-25 00:40:57,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:40:57,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 00:40:57,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:57,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:57,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-25 00:40:57,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:40:57,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:58,023 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:40:58,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:40:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:58,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:58,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:40:58,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:58,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 00:40:58,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:58,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:58,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:58,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:58,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:58,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:40:58,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:58,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:58,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:58,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:58,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:58,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:58,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:58,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:58,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:58,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:58,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:40:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:58,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:58,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:58,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:58,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:58,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:58,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:58,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:58,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:58,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:58,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:40:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:58,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:58,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:58,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:58,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:58,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:58,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:58,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:58,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:58,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:58,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:40:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:58,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:58,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:58,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:58,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:58,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:58,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:58,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:58,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:58,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:58,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:40:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:58,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:58,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:58,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:58,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:58,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:58,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:58,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:58,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:58,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:58,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:40:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:58,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:58,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 00:40:58,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:58,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:58,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:58,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:58,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:58,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:58,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:58,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:58,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:58,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:40:58,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:58,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:58,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:58,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:58,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:58,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:58,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:58,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:58,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:58,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:58,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:58,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:58,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:58,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:58,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:58,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:58,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:58,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 00:40:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:58,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:58,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:40:58,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:58,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 00:40:58,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:58,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:58,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:40:58,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:40:58,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:58,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:58,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:58,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:40:58,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:58,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 00:40:58,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:58,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:58,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:40:58,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:40:58,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:58,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:58,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:58,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:40:58,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:58,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 00:40:58,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:58,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:58,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:40:58,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:40:58,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:58,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:40:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:58,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:58,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:40:58,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:58,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:40:58,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:58,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:40:58,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:58,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:40:58,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:58,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:40:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:58,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:58,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:58,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:58,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:58,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:58,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:58,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:40:58,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:58,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:58,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-25 00:40:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:58,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:58,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:58,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:58,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:58,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:58,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:58,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:40:58,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:58,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:58,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-25 00:40:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:58,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:58,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:58,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:58,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:58,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:58,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:58,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:40:58,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:58,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:58,593 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 00:40:58,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [61821426] [2020-09-25 00:40:58,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:40:58,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 00:40:58,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832762775] [2020-09-25 00:40:58,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:40:58,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:40:58,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:40:58,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:40:58,598 INFO L87 Difference]: Start difference. First operand 355 states and 400 transitions. Second operand 10 states. [2020-09-25 00:40:59,919 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:00,241 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:41:00,600 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:00,926 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:41:01,211 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:02,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:41:02,229 INFO L93 Difference]: Finished difference Result 708 states and 887 transitions. [2020-09-25 00:41:02,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:41:02,230 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 212 [2020-09-25 00:41:02,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:41:02,238 INFO L225 Difference]: With dead ends: 708 [2020-09-25 00:41:02,238 INFO L226 Difference]: Without dead ends: 468 [2020-09-25 00:41:02,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:41:02,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2020-09-25 00:41:02,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 370. [2020-09-25 00:41:02,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-09-25 00:41:02,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 421 transitions. [2020-09-25 00:41:02,309 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 421 transitions. Word has length 212 [2020-09-25 00:41:02,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:41:02,310 INFO L479 AbstractCegarLoop]: Abstraction has 370 states and 421 transitions. [2020-09-25 00:41:02,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:41:02,310 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 421 transitions. [2020-09-25 00:41:02,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 00:41:02,313 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:41:02,314 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] [2020-09-25 00:41:02,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:41:02,314 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:41:02,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:41:02,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1580058496, now seen corresponding path program 1 times [2020-09-25 00:41:02,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:41:02,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862500137] [2020-09-25 00:41:02,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:41:02,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:02,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:02,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:03,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:04,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:07,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:07,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-25 00:41:07,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:41:07,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-25 00:41:07,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:07,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:41:07,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-25 00:41:07,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:41:07,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:07,826 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:41:07,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:41:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:07,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:07,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:07,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:41:07,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:07,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 00:41:07,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:07,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:07,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:07,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:07,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:07,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:41:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:07,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:07,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:07,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:07,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:07,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:41:07,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:07,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:07,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:41:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:07,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:07,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:07,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:07,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:07,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:41:07,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:07,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:07,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:07,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:07,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:07,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:41:07,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:07,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:07,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:07,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:07,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:07,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:41:07,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:07,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:07,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:41:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:07,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:07,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:07,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:07,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:07,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:07,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:07,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:07,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:07,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:07,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:07,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:41:07,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:08,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:08,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:08,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:08,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:08,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:41:08,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:08,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:08,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:08,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:08,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:08,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 00:41:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:08,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:08,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:08,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:41:08,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:08,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 00:41:08,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:08,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:41:08,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:41:08,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:41:08,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:08,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:08,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:08,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:08,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:41:08,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:08,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 00:41:08,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:08,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:41:08,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:41:08,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:41:08,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:08,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:08,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:08,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:08,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:41:08,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:08,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 00:41:08,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:08,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:41:08,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:08,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:41:08,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:08,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:41:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:08,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:08,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:08,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:41:08,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:08,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:08,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:08,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:08,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:08,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:08,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:08,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:41:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:08,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:08,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:08,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:08,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:08,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:41:08,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:08,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:08,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:41:08,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:08,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:08,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 00:41:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:08,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:08,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:08,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:08,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:08,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:08,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:08,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:08,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:41:08,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:08,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:08,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 00:41:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:08,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:08,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:08,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:08,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:08,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:08,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:08,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:08,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:41:08,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:08,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:08,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:41:08,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862500137] [2020-09-25 00:41:08,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:41:08,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 00:41:08,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929894548] [2020-09-25 00:41:08,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:41:08,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:41:08,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:41:08,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:41:08,320 INFO L87 Difference]: Start difference. First operand 370 states and 421 transitions. Second operand 10 states. [2020-09-25 00:41:09,915 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:10,254 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:41:10,580 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:41:10,906 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:11,234 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:41:11,537 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:12,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:41:12,422 INFO L93 Difference]: Finished difference Result 716 states and 877 transitions. [2020-09-25 00:41:12,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:41:12,423 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 187 [2020-09-25 00:41:12,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:41:12,428 INFO L225 Difference]: With dead ends: 716 [2020-09-25 00:41:12,428 INFO L226 Difference]: Without dead ends: 461 [2020-09-25 00:41:12,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:41:12,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2020-09-25 00:41:12,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 378. [2020-09-25 00:41:12,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2020-09-25 00:41:12,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 429 transitions. [2020-09-25 00:41:12,492 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 429 transitions. Word has length 187 [2020-09-25 00:41:12,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:41:12,493 INFO L479 AbstractCegarLoop]: Abstraction has 378 states and 429 transitions. [2020-09-25 00:41:12,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:41:12,493 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 429 transitions. [2020-09-25 00:41:12,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 00:41:12,496 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:41:12,497 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:41:12,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:41:12,497 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:41:12,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:41:12,498 INFO L82 PathProgramCache]: Analyzing trace with hash -801931810, now seen corresponding path program 1 times [2020-09-25 00:41:12,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:41:12,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636622887] [2020-09-25 00:41:12,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:41:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:12,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:12,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:12,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:13,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:17,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:17,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-25 00:41:17,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:41:17,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 00:41:17,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:17,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:41:17,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-09-25 00:41:17,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 00:41:17,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:17,917 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:41:17,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:41:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:17,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:18,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:18,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:41:18,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:18,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 00:41:18,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:18,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:18,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:18,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:18,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:18,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:41:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:18,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:18,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:18,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:18,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:18,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:18,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:18,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:18,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:18,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:18,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:18,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:41:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:18,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:18,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:18,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:18,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:18,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:18,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:18,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:18,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:18,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:18,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:18,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:41:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:18,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:18,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:18,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:18,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:18,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:18,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:18,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:18,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:18,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:18,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:18,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:41:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:18,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:18,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:18,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:18,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:18,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:18,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:18,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:18,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:18,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:18,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:18,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:41:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:18,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:18,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:18,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:18,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:18,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:18,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:18,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:18,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:18,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:18,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:18,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:41:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:18,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:18,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:18,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 00:41:18,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:18,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:41:18,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:41:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:41:18,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:18,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:18,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:18,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:18,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:41:18,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:18,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:41:18,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:18,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:41:18,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:18,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 00:41:18,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:18,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:18,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:18,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:18,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:18,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:18,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:18,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:18,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:18,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:18,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:18,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:18,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 00:41:18,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:18,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:18,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:18,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:41:18,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:18,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 00:41:18,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:18,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:18,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-25 00:41:18,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:18,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:18,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:18,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:18,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:18,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:41:18,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:18,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:41:18,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:18,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:18,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:18,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:18,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:18,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:18,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:18,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:18,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:41:18,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:18,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:41:18,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:18,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:18,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:18,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:18,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:18,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:41:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:18,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:18,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:18,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:41:18,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:18,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:18,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:18,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:18,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:18,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:18,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:41:18,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:41:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:18,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:18,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:18,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:18,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:18,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:41:18,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:18,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:18,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:18,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:18,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:18,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-25 00:41:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:18,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:18,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:18,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:18,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:18,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:18,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:18,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:18,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:41:18,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:18,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:18,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-25 00:41:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:18,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:18,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:18,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:18,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:18,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:18,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:18,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:18,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:41:18,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:18,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 00:41:18,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636622887] [2020-09-25 00:41:18,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:41:18,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 00:41:18,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525161388] [2020-09-25 00:41:18,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:41:18,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:41:18,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:41:18,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:41:18,390 INFO L87 Difference]: Start difference. First operand 378 states and 429 transitions. Second operand 7 states. [2020-09-25 00:41:19,170 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:41:21,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:41:21,346 INFO L93 Difference]: Finished difference Result 941 states and 1184 transitions. [2020-09-25 00:41:21,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:41:21,347 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-09-25 00:41:21,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:41:21,351 INFO L225 Difference]: With dead ends: 941 [2020-09-25 00:41:21,351 INFO L226 Difference]: Without dead ends: 548 [2020-09-25 00:41:21,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2020-09-25 00:41:21,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-09-25 00:41:21,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 445. [2020-09-25 00:41:21,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2020-09-25 00:41:21,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 505 transitions. [2020-09-25 00:41:21,409 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 505 transitions. Word has length 212 [2020-09-25 00:41:21,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:41:21,410 INFO L479 AbstractCegarLoop]: Abstraction has 445 states and 505 transitions. [2020-09-25 00:41:21,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:41:21,410 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 505 transitions. [2020-09-25 00:41:21,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 00:41:21,413 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:41:21,413 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] [2020-09-25 00:41:21,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:41:21,414 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:41:21,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:41:21,414 INFO L82 PathProgramCache]: Analyzing trace with hash 2145348253, now seen corresponding path program 1 times [2020-09-25 00:41:21,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:41:21,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677422019] [2020-09-25 00:41:21,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:41:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:21,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:21,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:23,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:24,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking...