/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:06:03,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:06:03,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:06:03,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:06:03,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:06:03,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:06:03,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:06:03,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:06:03,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:06:03,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:06:03,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:06:03,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:06:03,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:06:03,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:06:03,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:06:03,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:06:03,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:06:03,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:06:03,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:06:03,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:06:03,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:06:03,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:06:03,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:06:03,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:06:03,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:06:03,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:06:03,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:06:03,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:06:03,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:06:03,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:06:03,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:06:03,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:06:03,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:06:03,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:06:03,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:06:03,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:06:03,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:06:03,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:06:03,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:06:03,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:06:03,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:06:03,139 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 18:06:03,165 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:06:03,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:06:03,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:06:03,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:06:03,167 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:06:03,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:06:03,168 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:06:03,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:06:03,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:06:03,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:06:03,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:06:03,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:06:03,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:06:03,169 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:06:03,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:06:03,169 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:06:03,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:06:03,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:06:03,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:06:03,170 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:06:03,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:06:03,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:06:03,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:06:03,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:06:03,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:06:03,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:06:03,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:06:03,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:06:03,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:06:03,172 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 18:06:03,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:06:03,673 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:06:03,676 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:06:03,678 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:06:03,679 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:06:03,680 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_productSimulator.cil.c [2020-09-24 18:06:03,778 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75d05ece8/944752786e7943d1aa8837e7f22ba3cb/FLAG01f641471 [2020-09-24 18:06:04,399 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:06:04,399 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_productSimulator.cil.c [2020-09-24 18:06:04,418 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75d05ece8/944752786e7943d1aa8837e7f22ba3cb/FLAG01f641471 [2020-09-24 18:06:04,657 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75d05ece8/944752786e7943d1aa8837e7f22ba3cb [2020-09-24 18:06:04,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:06:04,677 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:06:04,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:06:04,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:06:04,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:06:04,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:06:04" (1/1) ... [2020-09-24 18:06:04,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c86c800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:04, skipping insertion in model container [2020-09-24 18:06:04,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:06:04" (1/1) ... [2020-09-24 18:06:04,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:06:04,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:06:05,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:06:05,149 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:06:05,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:06:05,409 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:06:05,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:05 WrapperNode [2020-09-24 18:06:05,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:06:05,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:06:05,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:06:05,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:06:05,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:05" (1/1) ... [2020-09-24 18:06:05,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:05" (1/1) ... [2020-09-24 18:06:05,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:05" (1/1) ... [2020-09-24 18:06:05,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:05" (1/1) ... [2020-09-24 18:06:05,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:05" (1/1) ... [2020-09-24 18:06:05,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:05" (1/1) ... [2020-09-24 18:06:05,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:05" (1/1) ... [2020-09-24 18:06:05,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:06:05,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:06:05,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:06:05,506 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:06:05,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:06:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:06:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:06:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:06:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:06:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:06:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:06:05,578 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:06:05,578 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:06:05,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:06:05,578 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:06:05,578 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2020-09-24 18:06:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2020-09-24 18:06:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2020-09-24 18:06:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2020-09-24 18:06:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2020-09-24 18:06:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2020-09-24 18:06:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:06:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2020-09-24 18:06:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2020-09-24 18:06:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:06:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:06:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:06:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:06:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:06:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:06:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 18:06:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:06:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:06:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:06:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:06:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:06:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:06:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:06:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:06:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:06:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:06:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:06:05,584 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:06:05,584 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:06:05,584 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:06:05,584 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:06:05,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:06:05,584 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:06:05,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 18:06:05,585 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:06:05,585 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:06:05,585 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:06:05,585 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:06:05,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:06:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:06:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:06:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:06:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:06:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:06:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:06:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:06:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:06:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:06:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:06:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:06:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:06:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:06:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:06:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:06:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:06:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:06:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:06:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:06:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:06:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:06:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:06:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:06:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 18:06:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:06:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:06:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:06:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:06:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:06:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2020-09-24 18:06:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:06:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2020-09-24 18:06:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2020-09-24 18:06:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 18:06:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2020-09-24 18:06:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2020-09-24 18:06:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:06:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2020-09-24 18:06:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2020-09-24 18:06:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2020-09-24 18:06:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:06:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:06:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:06:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:06:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:06:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:06:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:06:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:06:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:06:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:06:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:06:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:06:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:06:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:06:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:06:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:06:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:06:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:06:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:06:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:06:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:06:06,764 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:06:06,764 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:06:06,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:06:06 BoogieIcfgContainer [2020-09-24 18:06:06,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:06:06,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:06:06,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:06:06,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:06:06,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:06:04" (1/3) ... [2020-09-24 18:06:06,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d94abc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:06:06, skipping insertion in model container [2020-09-24 18:06:06,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:05" (2/3) ... [2020-09-24 18:06:06,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d94abc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:06:06, skipping insertion in model container [2020-09-24 18:06:06,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:06:06" (3/3) ... [2020-09-24 18:06:06,782 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_productSimulator.cil.c [2020-09-24 18:06:06,793 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:06:06,804 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:06:06,826 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:06:06,859 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:06:06,859 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:06:06,859 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:06:06,859 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:06:06,859 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:06:06,860 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:06:06,860 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:06:06,860 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:06:06,893 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states. [2020-09-24 18:06:06,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-24 18:06:06,915 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:06,917 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:06:06,917 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:06,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:06,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1119932632, now seen corresponding path program 1 times [2020-09-24 18:06:06,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:06,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508247584] [2020-09-24 18:06:06,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:07,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:07,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:07,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:09,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:10,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:12,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:12,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-24 18:06:12,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:06:12,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-09-24 18:06:12,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:12,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:12,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-09-24 18:06:12,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:12,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:06:12,901 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 18:06:12,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:12,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:06:13,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-24 18:06:13,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:13,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:13,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 18:06:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:06:13,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:06:13,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:13,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:13,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 18:06:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:06:13,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 18:06:13,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:13,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:13,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:06:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:13,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:13,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:13,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:13,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 18:06:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:13,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:13,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:13,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:13,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 18:06:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:13,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:06:13,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:13,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:13,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 18:06:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:13,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:13,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:13,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:13,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 18:06:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:13,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 18:06:13,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:13,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:13,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 18:06:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:13,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:06:13,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:13,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:13,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 18:06:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:13,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:13,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:13,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:06:13,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 18:06:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:13,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:13,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:13,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:13,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-09-24 18:06:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:13,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:13,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:13,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:13,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 18:06:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:13,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:13,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:13,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:13,573 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-24 18:06:13,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508247584] [2020-09-24 18:06:13,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:06:13,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:06:13,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471233646] [2020-09-24 18:06:13,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:06:13,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:06:13,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:06:13,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:06:13,607 INFO L87 Difference]: Start difference. First operand 420 states. Second operand 5 states. [2020-09-24 18:06:15,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:06:15,852 INFO L93 Difference]: Finished difference Result 676 states and 815 transitions. [2020-09-24 18:06:15,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 18:06:15,854 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 224 [2020-09-24 18:06:15,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:06:15,877 INFO L225 Difference]: With dead ends: 676 [2020-09-24 18:06:15,877 INFO L226 Difference]: Without dead ends: 427 [2020-09-24 18:06:15,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:06:15,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-09-24 18:06:16,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 369. [2020-09-24 18:06:16,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-09-24 18:06:16,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 414 transitions. [2020-09-24 18:06:16,040 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 414 transitions. Word has length 224 [2020-09-24 18:06:16,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:06:16,042 INFO L479 AbstractCegarLoop]: Abstraction has 369 states and 414 transitions. [2020-09-24 18:06:16,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:06:16,042 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 414 transitions. [2020-09-24 18:06:16,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-24 18:06:16,049 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:16,049 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:06:16,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:06:16,050 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:16,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:16,050 INFO L82 PathProgramCache]: Analyzing trace with hash -259914180, now seen corresponding path program 1 times [2020-09-24 18:06:16,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:16,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1791108977] [2020-09-24 18:06:16,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:16,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:16,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:18,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:18,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:20,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-09-24 18:06:21,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:06:21,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-09-24 18:06:21,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:06:21,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-24 18:06:21,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:06:21,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,678 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 18:06:21,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:06:21,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 18:06:21,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 18:06:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:06:21,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:06:21,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 18:06:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:06:21,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 18:06:21,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:06:21,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:06:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:21,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:21,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 18:06:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:21,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:21,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 18:06:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:21,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:21,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 18:06:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:21,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:21,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:21,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 18:06:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:21,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:21,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 18:06:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:21,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:21,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 18:06:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:21,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:21,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:21,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 18:06:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:21,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:21,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-24 18:06:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:21,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:21,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:21,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-09-24 18:06:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:21,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:21,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:21,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:22,034 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-24 18:06:22,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1791108977] [2020-09-24 18:06:22,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:06:22,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:06:22,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230444322] [2020-09-24 18:06:22,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:06:22,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:06:22,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:06:22,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:06:22,040 INFO L87 Difference]: Start difference. First operand 369 states and 414 transitions. Second operand 6 states. [2020-09-24 18:06:22,881 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-24 18:06:25,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:06:25,039 INFO L93 Difference]: Finished difference Result 585 states and 678 transitions. [2020-09-24 18:06:25,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 18:06:25,040 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2020-09-24 18:06:25,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:06:25,046 INFO L225 Difference]: With dead ends: 585 [2020-09-24 18:06:25,046 INFO L226 Difference]: Without dead ends: 410 [2020-09-24 18:06:25,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:06:25,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-09-24 18:06:25,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 359. [2020-09-24 18:06:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-09-24 18:06:25,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 401 transitions. [2020-09-24 18:06:25,109 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 401 transitions. Word has length 225 [2020-09-24 18:06:25,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:06:25,110 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 401 transitions. [2020-09-24 18:06:25,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:06:25,110 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 401 transitions. [2020-09-24 18:06:25,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-24 18:06:25,114 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:25,114 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:06:25,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:06:25,115 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:25,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:25,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1768944640, now seen corresponding path program 1 times [2020-09-24 18:06:25,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:25,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [888845337] [2020-09-24 18:06:25,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:25,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:25,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:26,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:29,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:30,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:30,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-09-24 18:06:30,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:06:30,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-24 18:06:30,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:30,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:06:30,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 241 [2020-09-24 18:06:30,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 18:06:30,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:30,685 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 18:06:30,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:30,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:30,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:30,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:06:30,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:30,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-24 18:06:30,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:30,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:30,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:30,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 18:06:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:30,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:30,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:30,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:06:30,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:30,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:30,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:30,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:30,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:30,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:30,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:31,055 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-09-24 18:06:31,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 18:06:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:31,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:31,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:31,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:06:31,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:31,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 18:06:31,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:31,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:31,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:31,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:31,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:31,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:06:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:31,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:31,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:31,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:31,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:31,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:31,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:31,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:31,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:31,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:31,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:31,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 18:06:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:31,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:31,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:31,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:31,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:31,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:31,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:31,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:31,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:31,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:31,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:31,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 18:06:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:31,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:31,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:31,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:31,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:31,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:31,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:31,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:31,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:31,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:31,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:31,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 18:06:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:31,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:31,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:31,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:31,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:31,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:31,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:31,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:31,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 18:06:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:31,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:31,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:31,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:31,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:31,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:31,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:31,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:31,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:31,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:31,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:31,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 18:06:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:31,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:31,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:31,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:31,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:31,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:31,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:31,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:31,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:31,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:31,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:31,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 18:06:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:31,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:31,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:31,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:31,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:31,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:31,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:31,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:31,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:31,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:31,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:31,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 18:06:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:31,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:31,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:31,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:31,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:31,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:31,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:31,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:31,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:31,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:31,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:31,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-09-24 18:06:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:31,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:31,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:31,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:31,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:31,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:31,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:31,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:06:31,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:31,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:06:31,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:31,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-09-24 18:06:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:31,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:31,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:31,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:31,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:31,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:06:31,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:31,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:31,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:31,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:06:31,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:31,356 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-24 18:06:31,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [888845337] [2020-09-24 18:06:31,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:06:31,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:06:31,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053100836] [2020-09-24 18:06:31,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:06:31,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:06:31,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:06:31,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:06:31,361 INFO L87 Difference]: Start difference. First operand 359 states and 401 transitions. Second operand 10 states. [2020-09-24 18:06:32,158 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-24 18:06:34,011 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-24 18:06:34,397 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-24 18:06:34,780 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-24 18:06:35,175 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-09-24 18:06:35,530 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-09-24 18:06:36,556 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-24 18:06:36,913 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-24 18:06:37,328 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-24 18:06:39,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:06:39,314 INFO L93 Difference]: Finished difference Result 744 states and 904 transitions. [2020-09-24 18:06:39,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 18:06:39,315 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 235 [2020-09-24 18:06:39,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:06:39,322 INFO L225 Difference]: With dead ends: 744 [2020-09-24 18:06:39,322 INFO L226 Difference]: Without dead ends: 537 [2020-09-24 18:06:39,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 18:06:39,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-09-24 18:06:39,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 503. [2020-09-24 18:06:39,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2020-09-24 18:06:39,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 586 transitions. [2020-09-24 18:06:39,403 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 586 transitions. Word has length 235 [2020-09-24 18:06:39,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:06:39,403 INFO L479 AbstractCegarLoop]: Abstraction has 503 states and 586 transitions. [2020-09-24 18:06:39,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:06:39,404 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 586 transitions. [2020-09-24 18:06:39,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-09-24 18:06:39,408 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:39,409 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:06:39,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:06:39,409 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:39,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:39,410 INFO L82 PathProgramCache]: Analyzing trace with hash 439173465, now seen corresponding path program 1 times [2020-09-24 18:06:39,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:39,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611078233] [2020-09-24 18:06:39,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:39,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:40,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:44,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:44,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 341 [2020-09-24 18:06:44,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:06:44,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-24 18:06:44,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:44,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:44,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-09-24 18:06:44,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:06:44,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:44,836 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 18:06:44,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:44,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:44,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:44,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:06:44,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:44,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 18:06:44,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:44,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:44,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:44,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:44,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:44,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 18:06:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:44,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:44,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:44,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:06:44,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:44,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:44,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:44,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:44,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:44,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:44,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:45,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 18:06:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:06:45,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 18:06:45,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:45,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:45,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:45,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:45,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:06:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:45,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:45,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:45,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:45,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:45,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:45,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 18:06:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:45,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:45,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:45,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:45,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:45,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:45,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 18:06:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:45,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:45,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:45,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:45,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:45,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:45,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 18:06:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:45,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:45,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:45,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:45,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:45,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:45,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 18:06:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:45,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:45,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:45,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:45,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:45,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:45,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 18:06:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:06:45,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:45,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:45,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:45,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:45,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:45,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 18:06:45,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:45,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:45,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:45,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:45,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:45,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:45,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 18:06:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:45,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:45,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:45,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:45,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:45,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:45,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-09-24 18:06:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 18:06:45,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 18:06:45,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:45,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 18:06:45,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:06:45,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:45,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:06:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-24 18:06:45,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 18:06:45,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:45,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 18:06:45,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:06:45,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:45,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:06:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 18:06:45,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 18:06:45,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:45,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 18:06:45,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:06:45,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:45,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:06:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 18:06:45,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 18:06:45,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:45,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:06:45,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:06:45,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:45,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:06:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:06:45,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 18:06:45,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:45,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 18:06:45,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:06:45,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:45,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:06:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:06:45,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:06:45,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:06:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:06:45,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:45,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:06:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 18:06:45,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:45,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:45,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 18:06:45,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:45,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:45,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:06:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:06:45,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:45,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:45,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:45,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:45,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:45,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-09-24 18:06:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:45,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:45,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:45,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:45,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:45,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:45,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2020-09-24 18:06:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:45,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:45,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:45,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:45,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:45,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:45,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:45,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:45,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:45,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:45,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:45,641 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-24 18:06:45,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611078233] [2020-09-24 18:06:45,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:06:45,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:06:45,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472048225] [2020-09-24 18:06:45,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:06:45,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:06:45,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:06:45,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:06:45,644 INFO L87 Difference]: Start difference. First operand 503 states and 586 transitions. Second operand 10 states. [2020-09-24 18:06:47,642 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-24 18:06:48,012 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-24 18:06:48,398 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-24 18:06:48,810 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-24 18:06:49,155 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-24 18:06:50,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:06:50,853 INFO L93 Difference]: Finished difference Result 928 states and 1162 transitions. [2020-09-24 18:06:50,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 18:06:50,860 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 284 [2020-09-24 18:06:50,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:06:50,864 INFO L225 Difference]: With dead ends: 928 [2020-09-24 18:06:50,864 INFO L226 Difference]: Without dead ends: 577 [2020-09-24 18:06:50,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 18:06:50,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2020-09-24 18:06:50,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 512. [2020-09-24 18:06:50,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-09-24 18:06:50,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 595 transitions. [2020-09-24 18:06:50,934 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 595 transitions. Word has length 284 [2020-09-24 18:06:50,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:06:50,935 INFO L479 AbstractCegarLoop]: Abstraction has 512 states and 595 transitions. [2020-09-24 18:06:50,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:06:50,935 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 595 transitions. [2020-09-24 18:06:50,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-09-24 18:06:50,940 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:50,941 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:06:50,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:06:50,941 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:50,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:50,942 INFO L82 PathProgramCache]: Analyzing trace with hash 2056189369, now seen corresponding path program 1 times [2020-09-24 18:06:50,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:50,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1034589545] [2020-09-24 18:06:50,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:51,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:51,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking...