/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 --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 interpolation-heuristic=FIRST --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_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:13:33,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:13:33,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:13:33,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:13:33,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:13:33,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:13:33,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:13:33,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:13:33,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:13:33,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:13:33,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:13:33,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:13:33,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:13:33,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:13:33,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:13:33,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:13:33,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:13:33,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:13:33,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:13:33,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:13:33,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:13:33,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:13:33,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:13:33,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:13:33,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:13:33,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:13:33,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:13:33,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:13:33,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:13:33,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:13:33,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:13:33,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:13:33,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:13:33,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:13:33,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:13:33,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:13:33,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:13:33,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:13:33,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:13:33,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:13:33,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:13:33,092 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 [2020-09-21 11:13:33,144 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:13:33,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:13:33,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:13:33,146 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:13:33,146 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:13:33,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:13:33,147 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:13:33,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:13:33,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:13:33,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:13:33,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:13:33,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:13:33,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:13:33,149 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:13:33,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:13:33,150 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:13:33,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:13:33,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:13:33,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:13:33,151 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:13:33,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:13:33,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:13:33,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:13:33,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:13:33,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:13:33,153 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:13:33,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:13:33,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:13:33,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:13:33,155 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:13:33,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:13:33,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:13:33,678 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:13:33,680 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:13:33,681 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:13:33,682 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product47.cil.c [2020-09-21 11:13:33,768 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2fc3ade4/b66826c441004ab0b961bb0580e780cf/FLAG24aba6a33 [2020-09-21 11:13:34,428 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:13:34,429 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product47.cil.c [2020-09-21 11:13:34,444 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2fc3ade4/b66826c441004ab0b961bb0580e780cf/FLAG24aba6a33 [2020-09-21 11:13:34,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2fc3ade4/b66826c441004ab0b961bb0580e780cf [2020-09-21 11:13:34,784 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:13:34,790 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:13:34,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:13:34,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:13:34,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:13:34,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:13:34" (1/1) ... [2020-09-21 11:13:34,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54a05326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:34, skipping insertion in model container [2020-09-21 11:13:34,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:13:34" (1/1) ... [2020-09-21 11:13:34,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:13:34,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:13:35,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:13:35,369 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:13:35,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:13:35,572 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:13:35,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35 WrapperNode [2020-09-21 11:13:35,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:13:35,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:13:35,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:13:35,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:13:35,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35" (1/1) ... [2020-09-21 11:13:35,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35" (1/1) ... [2020-09-21 11:13:35,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35" (1/1) ... [2020-09-21 11:13:35,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35" (1/1) ... [2020-09-21 11:13:35,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35" (1/1) ... [2020-09-21 11:13:35,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35" (1/1) ... [2020-09-21 11:13:35,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35" (1/1) ... [2020-09-21 11:13:35,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:13:35,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:13:35,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:13:35,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:13:35,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35" (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 [2020-09-21 11:13:35,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:13:35,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:13:35,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:13:35,839 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:13:35,839 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:13:35,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:13:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:13:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:13:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:13:35,841 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:13:35,841 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:13:35,841 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 11:13:35,841 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:13:35,842 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-21 11:13:35,842 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:13:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:13:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:13:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:13:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:13:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:13:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 11:13:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:13:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:13:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:13:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:13:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:13:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:13:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:13:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:13:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:13:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:13:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:13:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:13:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:13:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:13:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:13:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:13:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:13:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:13:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:13:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:13:35,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:13:35,849 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:13:35,849 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:13:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:13:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:13:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:13:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:13:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:13:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:13:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:13:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:13:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:13:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:13:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:13:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:13:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 11:13:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:13:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:13:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:13:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:13:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:13:35,855 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:13:35,855 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:13:35,855 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:13:35,855 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:13:35,855 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:13:35,855 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:13:35,855 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 11:13:35,856 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:13:35,856 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-21 11:13:35,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:13:35,857 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:13:35,857 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:13:35,858 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:13:35,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:13:35,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:13:35,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:13:35,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:13:35,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:13:35,859 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:13:35,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:13:35,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:13:35,860 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:13:35,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:13:35,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:13:35,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:13:35,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:13:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:13:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:13:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:13:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:13:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:13:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:13:37,033 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:13:37,033 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:13:37,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:13:37 BoogieIcfgContainer [2020-09-21 11:13:37,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:13:37,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:13:37,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:13:37,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:13:37,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:13:34" (1/3) ... [2020-09-21 11:13:37,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd69e4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:13:37, skipping insertion in model container [2020-09-21 11:13:37,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:35" (2/3) ... [2020-09-21 11:13:37,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd69e4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:13:37, skipping insertion in model container [2020-09-21 11:13:37,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:13:37" (3/3) ... [2020-09-21 11:13:37,049 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product47.cil.c [2020-09-21 11:13:37,061 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:13:37,072 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:13:37,093 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:13:37,122 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:13:37,122 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:13:37,122 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:13:37,122 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:13:37,123 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:13:37,123 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:13:37,123 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:13:37,123 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:13:37,150 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-09-21 11:13:37,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 11:13:37,163 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:37,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:37,165 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:37,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:37,173 INFO L82 PathProgramCache]: Analyzing trace with hash -2007114508, now seen corresponding path program 1 times [2020-09-21 11:13:37,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:37,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1414457211] [2020-09-21 11:13:37,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:37,512 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:37,516 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:37,516 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:37,516 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:37,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 11:13:37,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:37,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:13:37,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:37,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:37,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:13:37,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:37,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:38,005 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:38,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:38,030 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:38,031 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:38,031 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:38,031 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:38,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:38,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:38,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:38,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:38,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:38,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:38,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:38,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:38,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:38,087 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:38,087 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:38,087 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:38,088 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:38,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:38,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:38,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:38,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:38,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:38,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:38,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:38,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:38,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:38,093 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:38,094 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:38,094 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:38,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:38,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:38,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:38,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:38,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:38,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:38,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:38,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:38,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:38,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:38,100 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:38,100 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:38,101 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:38,101 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:38,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:38,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:38,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:38,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:38,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:38,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:38,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:38,108 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:38,109 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:38,109 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:38,109 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:38,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:38,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:38,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:38,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:38,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:38,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:38,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:38,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:38,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:13:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:38,115 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:38,116 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:38,116 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:38,116 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:38,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:38,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:38,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:38,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:38,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:38,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:38,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:38,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:38,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:13:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:38,126 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:38,126 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:38,126 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:38,127 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:38,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:38,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:38,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:38,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:38,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:38,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:38,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:38,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:38,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:38,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1414457211] [2020-09-21 11:13:38,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:38,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:13:38,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628589620] [2020-09-21 11:13:38,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:13:38,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:38,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:13:38,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:13:38,173 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 3 states. [2020-09-21 11:13:39,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:39,359 INFO L93 Difference]: Finished difference Result 323 states and 421 transitions. [2020-09-21 11:13:39,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:13:39,361 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 11:13:39,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:39,379 INFO L225 Difference]: With dead ends: 323 [2020-09-21 11:13:39,380 INFO L226 Difference]: Without dead ends: 175 [2020-09-21 11:13:39,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:13:39,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-09-21 11:13:39,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 139. [2020-09-21 11:13:39,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-09-21 11:13:39,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 164 transitions. [2020-09-21 11:13:39,489 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 164 transitions. Word has length 46 [2020-09-21 11:13:39,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:39,489 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 164 transitions. [2020-09-21 11:13:39,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:13:39,490 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 164 transitions. [2020-09-21 11:13:39,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 11:13:39,493 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:39,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:39,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:13:39,494 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:39,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:39,495 INFO L82 PathProgramCache]: Analyzing trace with hash 622418136, now seen corresponding path program 1 times [2020-09-21 11:13:39,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:39,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921291887] [2020-09-21 11:13:39,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,557 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,558 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,558 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,558 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:13:39,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:39,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:39,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:13:39,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:39,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:39,861 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:39,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,877 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,878 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,878 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,878 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:39,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:39,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:39,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:39,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:39,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:39,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,928 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,928 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,928 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,928 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:39,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:39,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:39,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:39,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:39,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:39,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,933 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,933 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,933 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,935 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:39,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:39,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:39,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:39,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:39,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:39,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,942 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,942 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,942 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,942 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:39,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:39,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:39,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:39,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:39,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,948 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,948 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,949 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,949 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:39,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:39,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:39,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:39,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:39,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:39,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:13:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,954 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,954 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,954 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,954 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:39,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:39,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:39,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:39,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:39,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:39,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,960 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,960 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,961 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,961 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:39,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:39,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:39,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:39,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:39,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:39,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:39,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1921291887] [2020-09-21 11:13:39,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:39,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:13:39,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669769115] [2020-09-21 11:13:39,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:13:39,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:39,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:13:39,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:13:39,974 INFO L87 Difference]: Start difference. First operand 139 states and 164 transitions. Second operand 4 states. [2020-09-21 11:13:40,397 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:41,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:41,411 INFO L93 Difference]: Finished difference Result 250 states and 304 transitions. [2020-09-21 11:13:41,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:13:41,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 11:13:41,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:41,415 INFO L225 Difference]: With dead ends: 250 [2020-09-21 11:13:41,415 INFO L226 Difference]: Without dead ends: 159 [2020-09-21 11:13:41,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:13:41,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-09-21 11:13:41,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 130. [2020-09-21 11:13:41,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-09-21 11:13:41,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 152 transitions. [2020-09-21 11:13:41,457 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 152 transitions. Word has length 47 [2020-09-21 11:13:41,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:41,457 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 152 transitions. [2020-09-21 11:13:41,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:13:41,458 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 152 transitions. [2020-09-21 11:13:41,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 11:13:41,460 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:41,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:41,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:13:41,461 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:41,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:41,461 INFO L82 PathProgramCache]: Analyzing trace with hash -943300313, now seen corresponding path program 1 times [2020-09-21 11:13:41,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:41,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585938565] [2020-09-21 11:13:41,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:41,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:41,974 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:41,975 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:41,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:41,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-21 11:13:41,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:41,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 460 [2020-09-21 11:13:41,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:41,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:13:41,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:41,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:13:41,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,311 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:42,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,385 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,385 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,385 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,386 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:42,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 11:13:42,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:42,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:42,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,429 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,430 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:42,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:42,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:42,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,435 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,435 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,435 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,435 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:42,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:42,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:42,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,441 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,441 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,441 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,442 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:42,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:42,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,448 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,448 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,448 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,448 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:42,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:42,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:42,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:13:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,455 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,455 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,455 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,455 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:42,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:42,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:42,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:42,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:13:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,460 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,461 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,461 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,461 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:42,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:42,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:42,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:42,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:42,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585938565] [2020-09-21 11:13:42,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:42,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:13:42,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347565966] [2020-09-21 11:13:42,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:13:42,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:42,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:13:42,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:13:42,472 INFO L87 Difference]: Start difference. First operand 130 states and 152 transitions. Second operand 4 states. [2020-09-21 11:13:42,798 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:44,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:44,587 INFO L93 Difference]: Finished difference Result 385 states and 474 transitions. [2020-09-21 11:13:44,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:13:44,588 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 11:13:44,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:44,594 INFO L225 Difference]: With dead ends: 385 [2020-09-21 11:13:44,594 INFO L226 Difference]: Without dead ends: 279 [2020-09-21 11:13:44,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:13:44,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-21 11:13:44,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 230. [2020-09-21 11:13:44,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-21 11:13:44,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 275 transitions. [2020-09-21 11:13:44,660 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 275 transitions. Word has length 51 [2020-09-21 11:13:44,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:44,660 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 275 transitions. [2020-09-21 11:13:44,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:13:44,661 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 275 transitions. [2020-09-21 11:13:44,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:13:44,663 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:44,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:44,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:13:44,664 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:44,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:44,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1373874698, now seen corresponding path program 1 times [2020-09-21 11:13:44,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:44,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038205171] [2020-09-21 11:13:44,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,118 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:45,118 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,118 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,118 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:13:45,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-09-21 11:13:45,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:45,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:45,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:13:45,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,427 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:45,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,503 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,504 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,504 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:45,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 11:13:45,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:45,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:45,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,545 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,545 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,546 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,546 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:45,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:45,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:45,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,551 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,552 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,552 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,552 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:45,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:45,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:45,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:45,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,558 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,558 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:45,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:45,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:45,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:45,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,566 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,566 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,566 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:45,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:45,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:45,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:13:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,586 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,586 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,586 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,586 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:45,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:45,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:45,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:45,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:13:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,594 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,595 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,595 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,595 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:45,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:45,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:45,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:45,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:13:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,613 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,613 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,613 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,613 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:45,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:45,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:45,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:45,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:45,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:45,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038205171] [2020-09-21 11:13:45,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:45,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:13:45,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22033642] [2020-09-21 11:13:45,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:13:45,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:45,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:13:45,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:13:45,627 INFO L87 Difference]: Start difference. First operand 230 states and 275 transitions. Second operand 8 states. [2020-09-21 11:13:46,066 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:47,377 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:47,808 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:48,209 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:48,527 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:49,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:49,820 INFO L93 Difference]: Finished difference Result 714 states and 928 transitions. [2020-09-21 11:13:49,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:49,822 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-09-21 11:13:49,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:49,827 INFO L225 Difference]: With dead ends: 714 [2020-09-21 11:13:49,827 INFO L226 Difference]: Without dead ends: 508 [2020-09-21 11:13:49,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:13:49,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-09-21 11:13:49,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 443. [2020-09-21 11:13:49,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-09-21 11:13:49,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 539 transitions. [2020-09-21 11:13:49,946 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 539 transitions. Word has length 57 [2020-09-21 11:13:49,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:49,946 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 539 transitions. [2020-09-21 11:13:49,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:13:49,947 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 539 transitions. [2020-09-21 11:13:49,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 11:13:49,950 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:49,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:49,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:13:49,951 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:49,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:49,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1619628708, now seen corresponding path program 1 times [2020-09-21 11:13:49,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:49,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181210347] [2020-09-21 11:13:49,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,376 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,376 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,377 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,377 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-21 11:13:50,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-09-21 11:13:50,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 11:13:50,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:50,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-21 11:13:50,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:50,792 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:50,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,864 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,865 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:50,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:13:50,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:50,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:50,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:50,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:50,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,908 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,909 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,909 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:50,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:50,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:50,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:50,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:50,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:50,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,918 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,918 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,919 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,919 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:50,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:50,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:50,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:50,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:50,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:50,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,926 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,927 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,927 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,927 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:50,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:50,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:50,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:50,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:50,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:50,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,935 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,936 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,936 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,936 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:50,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:50,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:50,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:50,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:50,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:50,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,966 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,967 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,967 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,967 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:50,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:50,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:50,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:50,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:50,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:51,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:13:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:51,039 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:51,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:51,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:51,040 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:51,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:51,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:51,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:51,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:51,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:51,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:51,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:51,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:51,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:13:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:51,051 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:51,051 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:51,052 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:51,052 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:51,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:51,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:51,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:51,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:51,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:51,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:51,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:51,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:51,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:13:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:51,077 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:51,078 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:51,078 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:51,078 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:51,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:51,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:51,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:51,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:51,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:51,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:51,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:51,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:51,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:51,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181210347] [2020-09-21 11:13:51,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:51,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-21 11:13:51,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592498335] [2020-09-21 11:13:51,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:13:51,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:51,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:13:51,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:13:51,099 INFO L87 Difference]: Start difference. First operand 443 states and 539 transitions. Second operand 11 states. [2020-09-21 11:13:51,624 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:52,248 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:53,343 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:54,010 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:54,348 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:54,927 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 187 [2020-09-21 11:13:55,465 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:55,891 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:58,197 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-21 11:13:59,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:59,907 INFO L93 Difference]: Finished difference Result 1392 states and 1832 transitions. [2020-09-21 11:13:59,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-21 11:13:59,908 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 61 [2020-09-21 11:13:59,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:59,918 INFO L225 Difference]: With dead ends: 1392 [2020-09-21 11:13:59,918 INFO L226 Difference]: Without dead ends: 1156 [2020-09-21 11:13:59,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=201, Invalid=729, Unknown=0, NotChecked=0, Total=930 [2020-09-21 11:13:59,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2020-09-21 11:14:00,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 963. [2020-09-21 11:14:00,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2020-09-21 11:14:00,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1173 transitions. [2020-09-21 11:14:00,226 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1173 transitions. Word has length 61 [2020-09-21 11:14:00,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:00,227 INFO L479 AbstractCegarLoop]: Abstraction has 963 states and 1173 transitions. [2020-09-21 11:14:00,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:14:00,227 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1173 transitions. [2020-09-21 11:14:00,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 11:14:00,231 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:00,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:00,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:14:00,232 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:00,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:00,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1561170436, now seen corresponding path program 1 times [2020-09-21 11:14:00,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:00,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1446817085] [2020-09-21 11:14:00,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,590 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,590 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,590 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-21 11:14:00,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-09-21 11:14:00,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:14:00,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:00,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:14:00,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,864 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:00,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,935 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,935 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,936 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,936 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:00,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 11:14:00,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:00,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:14:00,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,981 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,981 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,981 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,981 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:00,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:00,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:00,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:00,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,987 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,987 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,988 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,988 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:00,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:00,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:00,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:00,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,994 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,994 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,994 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,994 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:00,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:00,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:00,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:00,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:01,000 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:01,000 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:01,001 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:01,001 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:01,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:01,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:01,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:01,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:01,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:01,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:01,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:01,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:01,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:14:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:01,015 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:01,015 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:01,015 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:01,016 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:01,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:01,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:01,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:01,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:01,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:01,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:01,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:14:01,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:01,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:14:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:01,030 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:01,030 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:01,030 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:01,030 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:01,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:01,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:01,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:01,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:01,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:01,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:01,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:01,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:01,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:14:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:01,037 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:01,037 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:01,037 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:01,037 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:01,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:01,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:01,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:01,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:01,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:01,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:01,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:01,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:01,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:14:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:01,041 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:01,042 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:01,042 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:01,042 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:01,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:01,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:01,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:01,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:01,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:01,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:01,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:01,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:01,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:14:01,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1446817085] [2020-09-21 11:14:01,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:01,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:14:01,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831160564] [2020-09-21 11:14:01,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:14:01,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:01,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:14:01,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:14:01,060 INFO L87 Difference]: Start difference. First operand 963 states and 1173 transitions. Second operand 6 states. [2020-09-21 11:14:01,420 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:03,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:03,626 INFO L93 Difference]: Finished difference Result 2472 states and 3115 transitions. [2020-09-21 11:14:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:14:03,627 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-09-21 11:14:03,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:03,639 INFO L225 Difference]: With dead ends: 2472 [2020-09-21 11:14:03,639 INFO L226 Difference]: Without dead ends: 1533 [2020-09-21 11:14:03,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:14:03,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2020-09-21 11:14:03,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1431. [2020-09-21 11:14:03,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1431 states. [2020-09-21 11:14:03,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1701 transitions. [2020-09-21 11:14:03,951 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1701 transitions. Word has length 61 [2020-09-21 11:14:03,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:03,953 INFO L479 AbstractCegarLoop]: Abstraction has 1431 states and 1701 transitions. [2020-09-21 11:14:03,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:14:03,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1701 transitions. [2020-09-21 11:14:03,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-21 11:14:03,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:03,958 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:03,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:14:03,959 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:03,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:03,960 INFO L82 PathProgramCache]: Analyzing trace with hash -2114102273, now seen corresponding path program 1 times [2020-09-21 11:14:03,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:03,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1676502054] [2020-09-21 11:14:03,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,015 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,015 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,015 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,015 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-21 11:14:04,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:04,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:04,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-21 11:14:04,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:14:04,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,277 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:04,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,289 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,289 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,290 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,290 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,343 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,343 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,343 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,343 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:04,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,347 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,347 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,347 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,348 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:04,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,352 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,352 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,352 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,353 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,358 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,358 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,358 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,358 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:04,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:14:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,372 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,372 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,372 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,372 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:04,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:04,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:14:04,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:14:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,405 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,405 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,405 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,406 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-21 11:14:04,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:04,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:04,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 11:14:04,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:04,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,441 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,441 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,442 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,442 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:14:04,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:04,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:04,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:14:04,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:04,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,461 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,462 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,462 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,462 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:14:04,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:04,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:04,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:14:04,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:04,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:04,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,509 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,509 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,510 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,510 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:04,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:04,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:04,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:14:04,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,546 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,547 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,547 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:04,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:04,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,554 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,555 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,555 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,555 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:14:04,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 11:14:04,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:04,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,562 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,563 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,563 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,563 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:04,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:04,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:04,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,569 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,570 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,570 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,570 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:04,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,581 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,581 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,581 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,582 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:04,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:04,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:14:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,594 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,594 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,594 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,594 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:04,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:14:04,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,600 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,600 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,600 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,600 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:04,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-21 11:14:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,687 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,688 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,688 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,688 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:04,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:04,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-09-21 11:14:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,693 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,694 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,694 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,694 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:04,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:04,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-09-21 11:14:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,699 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,699 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,700 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,700 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:04,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:04,730 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:14:04,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1676502054] [2020-09-21 11:14:04,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:04,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 11:14:04,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631672216] [2020-09-21 11:14:04,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:14:04,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:04,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:14:04,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:14:04,733 INFO L87 Difference]: Start difference. First operand 1431 states and 1701 transitions. Second operand 12 states. [2020-09-21 11:14:06,006 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:06,500 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:06,838 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:14:07,184 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:07,529 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:09,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:09,699 INFO L93 Difference]: Finished difference Result 2444 states and 3020 transitions. [2020-09-21 11:14:09,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 11:14:09,700 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 127 [2020-09-21 11:14:09,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:09,712 INFO L225 Difference]: With dead ends: 2444 [2020-09-21 11:14:09,712 INFO L226 Difference]: Without dead ends: 905 [2020-09-21 11:14:09,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:14:09,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2020-09-21 11:14:09,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 836. [2020-09-21 11:14:09,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 836 states. [2020-09-21 11:14:09,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 976 transitions. [2020-09-21 11:14:09,941 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 976 transitions. Word has length 127 [2020-09-21 11:14:09,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:09,942 INFO L479 AbstractCegarLoop]: Abstraction has 836 states and 976 transitions. [2020-09-21 11:14:09,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:14:09,942 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 976 transitions. [2020-09-21 11:14:09,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-09-21 11:14:09,947 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:09,947 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:09,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:14:09,948 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:09,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:09,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1964476642, now seen corresponding path program 1 times [2020-09-21 11:14:09,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:09,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275041500] [2020-09-21 11:14:09,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,026 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:14:10,027 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -48 [2020-09-21 11:14:10,027 FATAL L256 erpolLogProxyWrapper]: Difference in width: 48 [2020-09-21 11:14:10,027 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-21 11:14:10,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:14:10,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:10,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-21 11:14:10,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:10,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,293 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:10,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,302 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,303 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,303 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,303 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:10,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,337 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,337 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,337 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:10,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,341 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,341 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,341 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,341 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:10,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:10,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,345 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,345 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,346 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,346 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:10,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,349 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,350 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,350 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:10,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:10,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:14:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,382 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,382 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,382 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,383 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-21 11:14:10,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:14:10,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-21 11:14:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:10,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,411 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,412 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,412 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,412 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:14:10,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:10,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:10,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:14:10,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:10,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,429 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,429 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:14:10,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:10,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:10,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:14:10,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:10,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,441 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,441 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,442 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,442 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:10,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:10,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:10,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:14:10,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:10,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:10,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,467 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,468 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,468 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:10,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:10,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:14:10,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:10,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,489 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,490 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,490 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,490 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:14:10,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 11:14:10,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:10,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,497 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,497 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,498 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:10,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,502 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,503 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,503 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,503 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:10,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,508 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,508 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,508 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,508 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:10,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:14:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,516 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,516 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,516 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,516 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:10,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:14:10,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,525 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,525 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,525 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,525 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:10,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 11:14:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,543 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,543 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,543 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,543 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:10,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:10,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:10,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 11:14:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,549 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,549 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,549 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,549 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:14:10,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:14:10,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,556 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,556 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,556 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:10,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,561 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,561 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,561 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,562 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:10,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 11:14:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,566 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,566 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,566 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,567 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:10,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:10,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-21 11:14:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,571 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,571 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,571 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,572 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:10,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:10,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:10,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-21 11:14:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:10,576 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:10,576 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:10,577 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:10,577 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:10,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:10,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:10,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:10,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:10,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:10,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:10,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:10,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:10,600 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-21 11:14:10,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275041500] [2020-09-21 11:14:10,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:10,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:14:10,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023809167] [2020-09-21 11:14:10,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:14:10,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:10,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:14:10,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:14:10,602 INFO L87 Difference]: Start difference. First operand 836 states and 976 transitions. Second operand 9 states. [2020-09-21 11:14:11,472 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:11,764 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:12,040 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:13,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:13,240 INFO L93 Difference]: Finished difference Result 1574 states and 1900 transitions. [2020-09-21 11:14:13,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:14:13,241 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 141 [2020-09-21 11:14:13,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:13,246 INFO L225 Difference]: With dead ends: 1574 [2020-09-21 11:14:13,247 INFO L226 Difference]: Without dead ends: 762 [2020-09-21 11:14:13,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:14:13,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2020-09-21 11:14:13,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 722. [2020-09-21 11:14:13,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 722 states. [2020-09-21 11:14:13,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 837 transitions. [2020-09-21 11:14:13,378 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 837 transitions. Word has length 141 [2020-09-21 11:14:13,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:13,379 INFO L479 AbstractCegarLoop]: Abstraction has 722 states and 837 transitions. [2020-09-21 11:14:13,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:14:13,379 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 837 transitions. [2020-09-21 11:14:13,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-09-21 11:14:13,381 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:13,381 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:13,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:14:13,382 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:13,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:13,382 INFO L82 PathProgramCache]: Analyzing trace with hash -872576729, now seen corresponding path program 1 times [2020-09-21 11:14:13,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:13,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112845413] [2020-09-21 11:14:13,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:13,873 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:13,873 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:13,874 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:13,874 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:13,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-21 11:14:13,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:13,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 433 [2020-09-21 11:14:13,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:13,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:14:13,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:13,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-09-21 11:14:13,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,246 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:14,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,313 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,313 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,314 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,314 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 11:14:14,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:14:14,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,349 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,350 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,350 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:14,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:14,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:14,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,355 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,355 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,355 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,356 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:14,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:14,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:14,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,361 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,361 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,361 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,361 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:14,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:14,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,367 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,367 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,367 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,367 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:14,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:14,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:14,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,388 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,388 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,389 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,389 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:14,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:14,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:14:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,415 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,416 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,416 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,416 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-21 11:14:14,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:14,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:14:14,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:14,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,445 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,445 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,445 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,446 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:14:14,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:14,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,458 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,459 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,459 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,459 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:14:14,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:14,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,476 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,477 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,477 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,477 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:14,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:14,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,485 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,486 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,486 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,486 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:14,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,492 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,492 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,493 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,493 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:14:14,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:14,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,501 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,502 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,502 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,502 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:14,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:14:14,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,510 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,511 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,511 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:14,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,518 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,519 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,519 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,519 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:14:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,528 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,528 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,529 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,529 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:14,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:14,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:14,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,536 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,536 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,536 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,537 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:14,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-21 11:14:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,548 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,548 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,548 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,549 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:14,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:14,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:14,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-21 11:14:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,574 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,575 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,575 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,575 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:14:14,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:14:14,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:14:14,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:14:14,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:14:14,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:14,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:14,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,677 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,677 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,677 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,677 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:14,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:14,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:14,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:14:14,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,736 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,736 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,737 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:14:14,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:14:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:14,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 11:14:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,760 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,760 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,760 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,760 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:14,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:14,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-21 11:14:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,765 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,766 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,766 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,766 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:14,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:14,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-21 11:14:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,770 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,771 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,771 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,771 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:14,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,800 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-21 11:14:14,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112845413] [2020-09-21 11:14:14,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:14,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-21 11:14:14,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472955643] [2020-09-21 11:14:14,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 11:14:14,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:14,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 11:14:14,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:14:14,803 INFO L87 Difference]: Start difference. First operand 722 states and 837 transitions. Second operand 13 states. [2020-09-21 11:14:15,347 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:16,164 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:14:17,248 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:17,659 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:14:18,067 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:14:18,386 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 11:14:18,778 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 11:14:19,147 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 11:14:20,637 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:14:21,261 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 189 [2020-09-21 11:14:21,638 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 11:14:22,022 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-21 11:14:23,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:23,379 INFO L93 Difference]: Finished difference Result 2181 states and 2584 transitions. [2020-09-21 11:14:23,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-21 11:14:23,380 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 145 [2020-09-21 11:14:23,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:23,390 INFO L225 Difference]: With dead ends: 2181 [2020-09-21 11:14:23,391 INFO L226 Difference]: Without dead ends: 1483 [2020-09-21 11:14:23,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=214, Invalid=842, Unknown=0, NotChecked=0, Total=1056 [2020-09-21 11:14:23,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2020-09-21 11:14:23,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1414. [2020-09-21 11:14:23,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1414 states. [2020-09-21 11:14:23,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 1625 transitions. [2020-09-21 11:14:23,666 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 1625 transitions. Word has length 145 [2020-09-21 11:14:23,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:23,668 INFO L479 AbstractCegarLoop]: Abstraction has 1414 states and 1625 transitions. [2020-09-21 11:14:23,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 11:14:23,668 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 1625 transitions. [2020-09-21 11:14:23,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-21 11:14:23,672 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:23,672 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:23,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:14:23,673 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:23,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:23,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1489780363, now seen corresponding path program 1 times [2020-09-21 11:14:23,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:23,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636188810] [2020-09-21 11:14:23,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,747 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:14:23,747 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -32 [2020-09-21 11:14:23,747 FATAL L256 erpolLogProxyWrapper]: Difference in width: 32 [2020-09-21 11:14:23,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-21 11:14:23,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:14:23,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:14:23,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-21 11:14:23,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:14:23,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:24,047 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:24,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,064 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,064 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,065 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,065 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:24,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:24,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:24,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:24,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,100 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,101 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,101 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,101 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:24,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:24,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:24,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:24,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,107 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,107 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,107 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,108 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:24,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:24,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:24,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:24,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,125 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,125 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,125 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,126 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:24,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:24,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:24,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:24,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,139 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,140 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,140 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,140 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:24,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:24,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:24,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:24,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,162 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:24,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:24,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:24,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:24,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:14:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,183 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,183 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,183 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,184 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:24,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:24,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:24,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:14:24,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:14:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,222 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,223 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,223 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-21 11:14:24,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:14:24,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:14:24,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-21 11:14:24,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:14:24,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,288 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,288 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,289 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,289 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:14:24,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:14:24,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:14:24,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:14:24,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,319 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,320 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,320 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,321 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:14:24,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:14:24,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:14:24,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-21 11:14:24,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,337 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,337 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,338 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:24,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:24,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:24,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,349 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,349 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:24,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:24,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:24,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:24,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,368 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,369 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,369 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,369 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:14:24,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:14:24,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:14:24,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:14:24,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,435 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,435 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,436 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,436 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:24,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:14:24,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:24,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:14:24,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,485 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,485 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,485 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,486 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:24,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:24,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:14:24,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:24,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,522 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,522 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:24,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:24,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:24,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:24,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:14:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,537 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,537 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,538 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,538 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:24,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:24,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:14:24,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,545 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,546 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,546 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,546 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:24,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:24,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:24,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:24,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-09-21 11:14:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,558 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,559 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:24,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:24,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:24,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:24,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:24,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-09-21 11:14:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,567 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,568 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,568 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,569 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:14:24,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:24,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:24,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:14:24,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:24,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,577 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,577 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,577 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,578 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:24,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:24,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:24,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:24,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,584 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,585 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,585 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,586 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:24,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:24,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:24,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:24,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 11:14:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,592 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,593 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,593 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,593 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:24,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:24,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:24,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:24,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:24,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:24,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-21 11:14:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,599 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,599 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,599 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,599 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:24,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:24,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:24,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:24,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:24,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:24,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-21 11:14:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:24,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:24,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:24,605 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:24,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:24,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:24,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:24,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:24,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:24,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:24,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:24,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:24,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:24,657 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-21 11:14:24,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636188810] [2020-09-21 11:14:24,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:24,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-21 11:14:24,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898667154] [2020-09-21 11:14:24,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-21 11:14:24,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:24,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-21 11:14:24,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:14:24,664 INFO L87 Difference]: Start difference. First operand 1414 states and 1625 transitions. Second operand 14 states. [2020-09-21 11:14:25,982 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:26,789 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186