/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:55:41,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:55:41,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:55:41,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:55:41,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:55:41,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:55:41,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:55:41,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:55:41,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:55:41,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:55:41,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:55:41,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:55:41,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:55:41,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:55:41,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:55:41,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:55:41,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:55:41,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:55:41,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:55:41,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:55:41,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:55:41,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:55:41,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:55:41,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:55:41,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:55:41,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:55:41,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:55:41,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:55:41,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:55:41,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:55:41,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:55:41,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:55:41,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:55:41,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:55:41,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:55:41,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:55:41,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:55:41,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:55:41,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:55:41,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:55:41,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:55:41,128 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 17:55:41,164 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:55:41,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:55:41,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:55:41,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:55:41,166 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:55:41,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:55:41,167 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:55:41,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:55:41,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:55:41,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:55:41,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:55:41,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:55:41,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:55:41,168 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:55:41,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:55:41,169 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:55:41,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:55:41,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:55:41,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:55:41,169 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:55:41,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:55:41,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:55:41,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:55:41,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:55:41,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:55:41,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:55:41,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:55:41,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:55:41,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:55:41,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 17:55:41,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:55:41,661 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:55:41,666 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:55:41,671 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:55:41,672 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:55:41,673 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c [2020-09-24 17:55:41,764 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49befca5f/5550aa66e79f4c7fa7693a906aa2b591/FLAG3c202db8e [2020-09-24 17:55:42,361 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:55:42,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c [2020-09-24 17:55:42,378 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49befca5f/5550aa66e79f4c7fa7693a906aa2b591/FLAG3c202db8e [2020-09-24 17:55:42,647 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49befca5f/5550aa66e79f4c7fa7693a906aa2b591 [2020-09-24 17:55:42,661 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:55:42,668 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:55:42,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:55:42,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:55:42,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:55:42,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:55:42" (1/1) ... [2020-09-24 17:55:42,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:42, skipping insertion in model container [2020-09-24 17:55:42,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:55:42" (1/1) ... [2020-09-24 17:55:42,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:55:42,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:55:43,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:55:43,121 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:55:43,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:55:43,364 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:55:43,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:43 WrapperNode [2020-09-24 17:55:43,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:55:43,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:55:43,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:55:43,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:55:43,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:43" (1/1) ... [2020-09-24 17:55:43,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:43" (1/1) ... [2020-09-24 17:55:43,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:43" (1/1) ... [2020-09-24 17:55:43,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:43" (1/1) ... [2020-09-24 17:55:43,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:43" (1/1) ... [2020-09-24 17:55:43,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:43" (1/1) ... [2020-09-24 17:55:43,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:43" (1/1) ... [2020-09-24 17:55:43,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:55:43,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:55:43,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:55:43,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:55:43,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:55:43,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:55:43,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:55:43,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 17:55:43,553 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 17:55:43,553 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 17:55:43,553 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 17:55:43,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 17:55:43,554 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 17:55:43,554 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 17:55:43,554 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 17:55:43,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 17:55:43,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:55:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 17:55:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 17:55:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 17:55:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 17:55:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:55:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 17:55:43,556 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 17:55:43,556 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 17:55:43,556 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 17:55:43,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 17:55:43,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 17:55:43,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 17:55:43,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 17:55:43,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 17:55:43,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 17:55:43,558 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 17:55:43,558 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 17:55:43,558 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 17:55:43,558 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 17:55:43,558 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 17:55:43,558 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 17:55:43,559 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 17:55:43,559 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 17:55:43,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 17:55:43,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 17:55:43,559 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 17:55:43,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 17:55:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:55:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:55:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 17:55:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 17:55:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 17:55:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 17:55:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 17:55:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 17:55:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 17:55:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 17:55:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:55:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 17:55:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 17:55:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:55:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 17:55:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 17:55:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 17:55:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 17:55:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 17:55:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 17:55:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 17:55:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 17:55:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 17:55:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 17:55:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:55:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 17:55:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 17:55:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:55:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:55:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 17:55:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:55:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:55:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:55:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:55:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 17:55:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:55:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 17:55:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 17:55:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:55:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 17:55:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 17:55:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 17:55:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 17:55:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 17:55:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 17:55:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 17:55:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 17:55:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 17:55:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 17:55:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 17:55:43,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:55:43,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:55:43,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:55:44,764 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:55:44,764 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 17:55:44,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:55:44 BoogieIcfgContainer [2020-09-24 17:55:44,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:55:44,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:55:44,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:55:44,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:55:44,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:55:42" (1/3) ... [2020-09-24 17:55:44,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47b02bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:55:44, skipping insertion in model container [2020-09-24 17:55:44,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:43" (2/3) ... [2020-09-24 17:55:44,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47b02bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:55:44, skipping insertion in model container [2020-09-24 17:55:44,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:55:44" (3/3) ... [2020-09-24 17:55:44,782 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product45.cil.c [2020-09-24 17:55:44,794 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:55:44,809 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:55:44,833 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:55:44,869 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:55:44,869 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:55:44,869 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:55:44,870 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:55:44,870 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:55:44,870 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:55:44,870 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:55:44,870 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:55:44,903 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-24 17:55:44,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 17:55:44,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:55:44,923 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:55:44,924 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:55:44,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:55:44,933 INFO L82 PathProgramCache]: Analyzing trace with hash 2110022022, now seen corresponding path program 1 times [2020-09-24 17:55:44,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:55:44,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670878785] [2020-09-24 17:55:44,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:55:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:45,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:45,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:46,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:47,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:47,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:50,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:50,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 17:55:50,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:55:50,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-24 17:55:50,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:50,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:50,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 17:55:50,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:50,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 17:55:50,766 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:55:50,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:55:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:50,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:50,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:50,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:55:50,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:50,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-24 17:55:50,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:50,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:50,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:50,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:50,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:50,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:55:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:50,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:50,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:50,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:50,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:50,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:50,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:50,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:50,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:55:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:50,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:50,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:50,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:50,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:50,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:50,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:50,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:50,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:50,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:50,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:50,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:55:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:50,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:50,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:50,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:50,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:50,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:55:50,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:50,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:50,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:50,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:50,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:50,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:55:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:50,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:51,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:51,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:51,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:51,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:51,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:51,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:51,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:51,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:51,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:55:51,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 17:55:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:51,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:51,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:51,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:51,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:51,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:51,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:51,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:51,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:55:51,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:51,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:55:51,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 17:55:51,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:51,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:51,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:51,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:51,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:51,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:51,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:51,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:51,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:55:51,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:51,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:51,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:55:51,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [670878785] [2020-09-24 17:55:51,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:55:51,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:55:51,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209381078] [2020-09-24 17:55:51,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:55:51,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:55:51,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:55:51,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:55:51,078 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 3 states. [2020-09-24 17:55:52,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:55:52,889 INFO L93 Difference]: Finished difference Result 487 states and 582 transitions. [2020-09-24 17:55:52,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:55:52,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 17:55:52,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:55:52,924 INFO L225 Difference]: With dead ends: 487 [2020-09-24 17:55:52,925 INFO L226 Difference]: Without dead ends: 302 [2020-09-24 17:55:52,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:55:52,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-09-24 17:55:53,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 259. [2020-09-24 17:55:53,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-24 17:55:53,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 283 transitions. [2020-09-24 17:55:53,150 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 283 transitions. Word has length 142 [2020-09-24 17:55:53,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:55:53,152 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 283 transitions. [2020-09-24 17:55:53,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:55:53,152 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 283 transitions. [2020-09-24 17:55:53,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 17:55:53,167 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:55:53,168 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:55:53,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:55:53,172 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:55:53,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:55:53,173 INFO L82 PathProgramCache]: Analyzing trace with hash 2094249122, now seen corresponding path program 1 times [2020-09-24 17:55:53,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:55:53,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1613762281] [2020-09-24 17:55:53,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:55:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:53,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:53,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:53,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:54,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:54,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:58,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:58,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 17:55:58,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:55:58,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-24 17:55:58,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:58,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:55:58,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 17:55:58,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:55:58,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:58,602 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:55:58,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:55:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:58,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:58,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:58,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:55:58,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:58,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 17:55:58,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:58,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:58,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:58,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:58,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:58,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:55:58,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:58,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:58,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:58,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:58,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:58,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:55:58,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:58,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:58,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:58,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:58,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:58,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:55:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:58,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:58,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:58,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:58,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:58,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:55:58,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:58,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:58,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:58,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:58,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:58,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:55:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:58,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:58,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:58,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:58,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:58,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:55:58,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:58,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:58,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:58,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:58,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:58,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:55:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:58,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:58,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:58,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:58,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:58,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:58,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:58,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:58,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:58,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:58,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:58,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 17:55:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:58,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:58,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:58,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:58,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:58,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:58,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:58,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:58,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:55:58,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:58,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:58,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 17:55:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:58,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:58,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:58,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:58,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:58,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:58,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:58,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:58,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:55:58,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:58,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:58,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:55:58,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1613762281] [2020-09-24 17:55:58,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:55:58,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:55:58,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993521205] [2020-09-24 17:55:58,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:55:58,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:55:58,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:55:58,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:55:58,813 INFO L87 Difference]: Start difference. First operand 259 states and 283 transitions. Second operand 4 states. [2020-09-24 17:55:59,522 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:56:00,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:00,613 INFO L93 Difference]: Finished difference Result 404 states and 457 transitions. [2020-09-24 17:56:00,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:56:00,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 17:56:00,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:00,618 INFO L225 Difference]: With dead ends: 404 [2020-09-24 17:56:00,618 INFO L226 Difference]: Without dead ends: 285 [2020-09-24 17:56:00,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:56:00,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-09-24 17:56:00,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 249. [2020-09-24 17:56:00,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-24 17:56:00,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 270 transitions. [2020-09-24 17:56:00,661 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 270 transitions. Word has length 143 [2020-09-24 17:56:00,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:00,662 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 270 transitions. [2020-09-24 17:56:00,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:56:00,662 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 270 transitions. [2020-09-24 17:56:00,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-24 17:56:00,664 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:00,665 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] [2020-09-24 17:56:00,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:56:00,665 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:00,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:00,665 INFO L82 PathProgramCache]: Analyzing trace with hash -104136956, now seen corresponding path program 1 times [2020-09-24 17:56:00,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:00,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [526075466] [2020-09-24 17:56:00,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:00,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:00,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:01,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:01,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:05,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:05,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 17:56:05,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:56:05,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-24 17:56:05,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:05,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:05,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 17:56:05,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 17:56:05,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:06,049 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:06,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:06,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:06,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:06,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:06,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:06,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-24 17:56:06,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:06,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:06,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:06,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 17:56:06,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:06,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:06,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:06,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:06,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:06,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:06,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 17:56:06,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:06,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:06,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:06,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:56:06,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:06,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:06,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:06,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:06,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:06,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:06,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:56:06,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:06,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:06,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:06,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:56:06,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:06,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:06,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:06,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:06,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:06,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:06,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:56:06,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:06,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:06,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:06,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:56:06,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:06,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:06,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:06,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:06,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:06,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:06,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:06,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:06,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:06,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:06,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:56:06,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:06,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 17:56:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:06,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:06,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:06,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:06,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:06,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 17:56:06,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:06,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:06,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:06,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:06,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:06,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 17:56:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:06,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:06,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:06,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:06,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:06,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:06,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:06,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:06,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:06,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:06,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:06,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:56:06,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [526075466] [2020-09-24 17:56:06,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:56:06,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:56:06,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405473202] [2020-09-24 17:56:06,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:56:06,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:56:06,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:56:06,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:56:06,541 INFO L87 Difference]: Start difference. First operand 249 states and 270 transitions. Second operand 4 states. [2020-09-24 17:56:07,045 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:56:07,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:07,936 INFO L93 Difference]: Finished difference Result 424 states and 482 transitions. [2020-09-24 17:56:07,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:56:07,937 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2020-09-24 17:56:07,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:07,940 INFO L225 Difference]: With dead ends: 424 [2020-09-24 17:56:07,941 INFO L226 Difference]: Without dead ends: 285 [2020-09-24 17:56:07,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:56:07,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-09-24 17:56:07,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 249. [2020-09-24 17:56:07,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-24 17:56:07,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 269 transitions. [2020-09-24 17:56:07,985 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 269 transitions. Word has length 152 [2020-09-24 17:56:07,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:07,986 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 269 transitions. [2020-09-24 17:56:07,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:56:07,986 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions. [2020-09-24 17:56:07,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-24 17:56:07,988 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:07,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:56:07,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:56:07,989 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:07,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:07,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1557492172, now seen corresponding path program 1 times [2020-09-24 17:56:07,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:07,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [436754027] [2020-09-24 17:56:07,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:08,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:08,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:08,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:09,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:10,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:10,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:10,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:13,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:13,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 17:56:13,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 17:56:13,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 17:56:13,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:13,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:56:13,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-24 17:56:13,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:56:13,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:13,364 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:13,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:13,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:13,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:13,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:13,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:13,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 17:56:13,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:13,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:13,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:13,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:13,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:13,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:13,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:13,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:13,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:13,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:13,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:13,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:13,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:13,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:13,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:13,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:13,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:13,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:13,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:13,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:13,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:13,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:13,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:13,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:13,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:13,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:13,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:13,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:13,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:13,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:13,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:13,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:13,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:56:13,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:13,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:13,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:13,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:13,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:13,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:13,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:13,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:13,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:13,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:13,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:56:13,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:13,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:13,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:13,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:13,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:13,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 17:56:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:13,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:13,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:13,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 17:56:13,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:13,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 17:56:13,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:13,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:56:13,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 17:56:13,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:56:13,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:13,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:56:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:13,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:13,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:13,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 17:56:13,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:13,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:56:13,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:13,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:56:13,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 17:56:13,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 17:56:13,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:13,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:56:13,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:13,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:13,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:13,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:13,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:13,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:13,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:13,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:13,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:13,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:56:13,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:13,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-24 17:56:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:13,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:13,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:13,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:13,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:13,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:13,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:13,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:13,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:13,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:13,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:13,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 17:56:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:13,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:13,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:13,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:13,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:13,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:13,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:13,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:13,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:13,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:13,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:13,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:56:13,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [436754027] [2020-09-24 17:56:13,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:56:13,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:56:13,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167902692] [2020-09-24 17:56:13,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:56:13,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:56:13,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:56:13,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:56:13,696 INFO L87 Difference]: Start difference. First operand 249 states and 269 transitions. Second operand 6 states. [2020-09-24 17:56:14,358 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:56:15,817 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:56:16,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:16,692 INFO L93 Difference]: Finished difference Result 563 states and 645 transitions. [2020-09-24 17:56:16,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 17:56:16,693 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-09-24 17:56:16,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:16,698 INFO L225 Difference]: With dead ends: 563 [2020-09-24 17:56:16,698 INFO L226 Difference]: Without dead ends: 424 [2020-09-24 17:56:16,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-24 17:56:16,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-09-24 17:56:16,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 365. [2020-09-24 17:56:16,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-24 17:56:16,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 394 transitions. [2020-09-24 17:56:16,755 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 394 transitions. Word has length 165 [2020-09-24 17:56:16,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:16,756 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 394 transitions. [2020-09-24 17:56:16,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:56:16,756 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 394 transitions. [2020-09-24 17:56:16,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-24 17:56:16,758 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:16,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:56:16,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:56:16,759 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:16,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:16,760 INFO L82 PathProgramCache]: Analyzing trace with hash -597783407, now seen corresponding path program 1 times [2020-09-24 17:56:16,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:16,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [621438484] [2020-09-24 17:56:16,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:16,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:16,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:19,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:19,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:19,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:20,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:21,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:21,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-24 17:56:21,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 17:56:21,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-24 17:56:21,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:21,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:56:21,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 17:56:21,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:56:21,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:22,186 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:22,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:22,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:22,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:22,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:22,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:22,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 17:56:22,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:22,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:22,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:22,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:22,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:22,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:22,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:22,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:22,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:22,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:22,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:22,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:22,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:22,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:22,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:22,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:22,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:22,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:22,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:22,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:22,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:22,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:22,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:22,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:22,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:22,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:22,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:22,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:22,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:22,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:22,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:22,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:22,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:56:22,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:22,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:22,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:22,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:22,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:22,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:22,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:22,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:22,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:22,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:22,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:56:22,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:22,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:22,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:22,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:22,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:22,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 17:56:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:22,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:22,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:22,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:22,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 17:56:22,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:56:22,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-24 17:56:22,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:22,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:56:22,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 17:56:22,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:56:22,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:22,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:56:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:22,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:22,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:22,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:22,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 17:56:22,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:56:22,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-09-24 17:56:22,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:22,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:56:22,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 17:56:22,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:56:22,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:22,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:56:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:22,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:22,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:22,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 17:56:22,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:22,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 17:56:22,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:22,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:56:22,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 17:56:22,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:56:22,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:22,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 17:56:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:22,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:22,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:22,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 17:56:22,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:22,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:56:22,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:22,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:56:22,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:22,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:56:22,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:22,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 17:56:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:22,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:22,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:22,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:22,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:22,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 17:56:22,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:22,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:22,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 17:56:22,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:22,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:22,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 17:56:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:22,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:22,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:22,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:22,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:22,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:56:22,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:22,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:22,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:22,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:22,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:22,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 17:56:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:22,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:22,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:22,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:22,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:22,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:22,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:23,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:23,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:23,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:23,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 17:56:23,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:56:23,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [621438484] [2020-09-24 17:56:23,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:56:23,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:56:23,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321231882] [2020-09-24 17:56:23,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:56:23,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:56:23,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:56:23,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:56:23,042 INFO L87 Difference]: Start difference. First operand 365 states and 394 transitions. Second operand 8 states. [2020-09-24 17:56:24,175 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:56:24,516 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:56:24,814 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:56:25,135 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:56:25,416 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:56:26,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:26,508 INFO L93 Difference]: Finished difference Result 684 states and 777 transitions. [2020-09-24 17:56:26,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 17:56:26,509 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 189 [2020-09-24 17:56:26,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:26,513 INFO L225 Difference]: With dead ends: 684 [2020-09-24 17:56:26,513 INFO L226 Difference]: Without dead ends: 429 [2020-09-24 17:56:26,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-24 17:56:26,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-09-24 17:56:26,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 371. [2020-09-24 17:56:26,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-09-24 17:56:26,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 400 transitions. [2020-09-24 17:56:26,556 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 400 transitions. Word has length 189 [2020-09-24 17:56:26,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:26,557 INFO L479 AbstractCegarLoop]: Abstraction has 371 states and 400 transitions. [2020-09-24 17:56:26,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:56:26,557 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 400 transitions. [2020-09-24 17:56:26,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-24 17:56:26,559 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:26,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:56:26,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 17:56:26,560 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:26,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:26,560 INFO L82 PathProgramCache]: Analyzing trace with hash 542010417, now seen corresponding path program 1 times [2020-09-24 17:56:26,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:26,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1557449384] [2020-09-24 17:56:26,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:26,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:26,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:27,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:27,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking...