/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_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:13:30,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:13:30,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:13:30,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:13:30,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:13:30,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:13:30,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:13:30,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:13:30,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:13:30,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:13:30,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:13:30,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:13:30,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:13:30,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:13:30,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:13:30,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:13:30,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:13:30,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:13:30,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:13:30,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:13:31,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:13:31,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:13:31,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:13:31,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:13:31,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:13:31,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:13:31,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:13:31,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:13:31,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:13:31,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:13:31,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:13:31,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:13:31,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:13:31,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:13:31,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:13:31,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:13:31,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:13:31,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:13:31,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:13:31,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:13:31,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:13:31,015 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 11:13:31,039 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:13:31,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:13:31,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:13:31,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:13:31,041 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:13:31,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:13:31,041 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:13:31,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:13:31,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:13:31,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:13:31,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:13:31,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:13:31,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:13:31,043 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:13:31,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:13:31,043 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:13:31,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:13:31,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:13:31,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:13:31,044 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:13:31,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:13:31,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:13:31,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:13:31,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:13:31,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:13:31,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:13:31,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:13:31,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:13:31,046 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:13:31,046 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 11:13:31,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:13:31,494 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:13:31,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:13:31,500 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:13:31,501 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:13:31,502 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product46.cil.c [2020-09-21 11:13:31,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3f0f6490/56d2ef44f67648eca4b9a9cb364a14fa/FLAG2b9c91f14 [2020-09-21 11:13:32,194 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:13:32,194 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product46.cil.c [2020-09-21 11:13:32,219 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3f0f6490/56d2ef44f67648eca4b9a9cb364a14fa/FLAG2b9c91f14 [2020-09-21 11:13:32,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3f0f6490/56d2ef44f67648eca4b9a9cb364a14fa [2020-09-21 11:13:32,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:13:32,482 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:13:32,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:13:32,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:13:32,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:13:32,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:13:32" (1/1) ... [2020-09-21 11:13:32,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a098cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:32, skipping insertion in model container [2020-09-21 11:13:32,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:13:32" (1/1) ... [2020-09-21 11:13:32,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:13:32,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:13:33,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:13:33,070 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:13:33,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:13:33,236 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:13:33,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:33 WrapperNode [2020-09-21 11:13:33,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:13:33,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:13:33,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:13:33,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:13:33,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:33" (1/1) ... [2020-09-21 11:13:33,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:33" (1/1) ... [2020-09-21 11:13:33,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:33" (1/1) ... [2020-09-21 11:13:33,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:33" (1/1) ... [2020-09-21 11:13:33,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:33" (1/1) ... [2020-09-21 11:13:33,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:33" (1/1) ... [2020-09-21 11:13:33,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:33" (1/1) ... [2020-09-21 11:13:33,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:13:33,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:13:33,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:13:33,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:13:33,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:33" (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 11:13:33,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:13:33,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:13:33,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:13:33,454 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:13:33,454 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:13:33,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:13:33,454 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:13:33,454 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:13:33,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:13:33,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:13:33,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:13:33,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:13:33,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:13:33,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:13:33,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:13:33,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:13:33,456 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:13:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:13:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 11:13:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:13:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-21 11:13:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:13:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:13:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:13:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:13:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:13:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:13:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 11:13:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:13:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:13:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:13:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:13:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:13:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:13:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:13:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:13:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:13:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:13:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:13:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:13:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:13:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:13:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:13:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:13:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:13:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:13:33,462 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:13:33,462 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:13:33,462 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:13:33,462 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:13:33,462 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:13:33,462 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:13:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:13:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:13:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:13:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:13:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:13:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:13:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:13:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:13:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:13:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:13:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:13:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:13:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:13:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:13:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:13:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:13:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:13:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:13:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:13:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:13:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:13:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:13:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:13:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:13:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:13:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:13:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:13:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:13:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:13:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:13:33,468 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:13:33,468 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 11:13:33,468 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:13:33,468 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:13:33,468 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:13:33,468 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 11:13:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:13:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-21 11:13:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:13:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:13:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:13:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:13:34,623 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:13:34,623 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:13:34,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:13:34 BoogieIcfgContainer [2020-09-21 11:13:34,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:13:34,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:13:34,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:13:34,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:13:34,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:13:32" (1/3) ... [2020-09-21 11:13:34,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71a1a7c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:13:34, skipping insertion in model container [2020-09-21 11:13:34,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:33" (2/3) ... [2020-09-21 11:13:34,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71a1a7c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:13:34, skipping insertion in model container [2020-09-21 11:13:34,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:13:34" (3/3) ... [2020-09-21 11:13:34,639 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product46.cil.c [2020-09-21 11:13:34,650 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:13:34,661 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:13:34,683 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:13:34,714 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:13:34,715 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:13:34,715 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:13:34,715 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:13:34,715 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:13:34,715 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:13:34,716 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:13:34,716 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:13:34,743 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2020-09-21 11:13:34,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 11:13:34,755 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:34,756 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 11:13:34,756 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:34,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:34,764 INFO L82 PathProgramCache]: Analyzing trace with hash 580316159, now seen corresponding path program 1 times [2020-09-21 11:13:34,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:34,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147930059] [2020-09-21 11:13:34,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,118 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,119 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,119 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,119 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 11:13:35,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:13:35,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:35,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:13:35,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:35,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:35,502 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:35,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:35,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,520 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,520 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,521 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,521 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:35,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:35,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:35,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:35,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,587 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,587 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,587 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,587 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:35,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:35,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:35,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:35,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,594 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,594 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,594 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,594 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:35,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:35,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:35,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:35,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,601 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,601 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,601 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,602 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:35,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:35,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:35,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:35,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,608 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,609 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:35,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:35,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:35,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:35,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:13:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,615 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,616 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,616 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,616 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:35,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:35,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:35,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:35,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:35,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:13:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,623 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,624 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,624 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,624 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:35,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:35,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:35,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:35,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:35,676 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 11:13:35,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147930059] [2020-09-21 11:13:35,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:35,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:13:35,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856083878] [2020-09-21 11:13:35,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:13:35,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:35,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:13:35,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:13:35,708 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 3 states. [2020-09-21 11:13:36,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:36,873 INFO L93 Difference]: Finished difference Result 318 states and 412 transitions. [2020-09-21 11:13:36,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:13:36,875 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 11:13:36,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:36,894 INFO L225 Difference]: With dead ends: 318 [2020-09-21 11:13:36,894 INFO L226 Difference]: Without dead ends: 172 [2020-09-21 11:13:36,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:13:36,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-09-21 11:13:37,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 137. [2020-09-21 11:13:37,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-09-21 11:13:37,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 160 transitions. [2020-09-21 11:13:37,022 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 160 transitions. Word has length 46 [2020-09-21 11:13:37,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:37,022 INFO L479 AbstractCegarLoop]: Abstraction has 137 states and 160 transitions. [2020-09-21 11:13:37,022 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:13:37,022 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 160 transitions. [2020-09-21 11:13:37,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 11:13:37,026 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:37,026 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 11:13:37,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:13:37,027 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:37,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:37,027 INFO L82 PathProgramCache]: Analyzing trace with hash -2039927443, now seen corresponding path program 1 times [2020-09-21 11:13:37,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:37,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782882887] [2020-09-21 11:13:37,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:37,117 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:37,118 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:37,118 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:37,118 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:37,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:13:37,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:37,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:37,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:37,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:37,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:13:37,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:37,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:37,441 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:37,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:37,455 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:37,455 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:37,455 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:37,455 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:37,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:37,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:37,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:37,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:37,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:37,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:37,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:37,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:37,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:37,498 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:37,498 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:37,498 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:37,499 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:37,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:37,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:37,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:37,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:37,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:37,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:37,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:37,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:37,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:37,503 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:37,503 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:37,503 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:37,503 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:37,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:37,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:37,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:37,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:37,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:37,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:37,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:37,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:37,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:37,507 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:37,508 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:37,508 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:37,508 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:37,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:37,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:37,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:37,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:37,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:37,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:37,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:37,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:37,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:37,512 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 11:13:37,513 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:37,513 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:37,513 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:37,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:37,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:37,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:37,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:37,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:37,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:37,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:37,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:37,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:13:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:37,517 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:37,517 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:37,518 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:37,518 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:37,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:37,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:37,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:37,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:37,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:37,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:37,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:37,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:37,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:37,523 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:37,523 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:37,523 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:37,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:37,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:37,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:37,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:37,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:37,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:37,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:37,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:37,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:37,531 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 11:13:37,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [782882887] [2020-09-21 11:13:37,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:37,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:13:37,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128591866] [2020-09-21 11:13:37,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:13:37,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:37,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:13:37,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:13:37,535 INFO L87 Difference]: Start difference. First operand 137 states and 160 transitions. Second operand 4 states. [2020-09-21 11:13:38,000 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:38,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:38,822 INFO L93 Difference]: Finished difference Result 247 states and 299 transitions. [2020-09-21 11:13:38,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:13:38,823 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 11:13:38,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:38,831 INFO L225 Difference]: With dead ends: 247 [2020-09-21 11:13:38,831 INFO L226 Difference]: Without dead ends: 156 [2020-09-21 11:13:38,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:13:38,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-09-21 11:13:38,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 128. [2020-09-21 11:13:38,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-21 11:13:38,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 148 transitions. [2020-09-21 11:13:38,893 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 148 transitions. Word has length 47 [2020-09-21 11:13:38,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:38,893 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 148 transitions. [2020-09-21 11:13:38,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:13:38,893 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 148 transitions. [2020-09-21 11:13:38,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:13:38,895 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:38,896 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] [2020-09-21 11:13:38,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:13:38,896 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:38,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:38,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1891987703, now seen corresponding path program 1 times [2020-09-21 11:13:38,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:38,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753818903] [2020-09-21 11:13:38,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,287 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:39,288 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,288 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,288 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 11:13:39,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-09-21 11:13:39,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:13:39,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:39,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 11:13:39,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:39,583 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:39,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,706 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,706 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,707 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,707 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:39,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-21 11:13:39,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:39,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:39,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:39,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:39,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,755 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,755 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,755 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,755 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:39,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:39,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:39,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:39,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:39,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:39,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,760 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,760 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,761 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,761 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:39,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:39,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:39,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:39,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:39,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:39,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,769 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,770 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,770 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,770 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:39,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:39,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:39,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:39,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:39,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:39,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,777 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,777 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,778 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:39,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:39,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:39,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:39,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:39,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:39,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:13:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,786 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,786 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,786 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,787 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:39,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:39,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:39,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:39,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:39,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:39,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:13:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,792 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,792 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,792 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,793 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:39,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:39,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:39,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:39,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:39,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:39,806 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 11:13:39,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753818903] [2020-09-21 11:13:39,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:39,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:13:39,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470691600] [2020-09-21 11:13:39,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:13:39,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:39,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:13:39,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:13:39,810 INFO L87 Difference]: Start difference. First operand 128 states and 148 transitions. Second operand 4 states. [2020-09-21 11:13:40,180 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:41,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:41,113 INFO L93 Difference]: Finished difference Result 260 states and 317 transitions. [2020-09-21 11:13:41,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:13:41,114 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-09-21 11:13:41,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:41,118 INFO L225 Difference]: With dead ends: 260 [2020-09-21 11:13:41,118 INFO L226 Difference]: Without dead ends: 156 [2020-09-21 11:13:41,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 1 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 11:13:41,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-09-21 11:13:41,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 128. [2020-09-21 11:13:41,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-21 11:13:41,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 147 transitions. [2020-09-21 11:13:41,156 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 147 transitions. Word has length 52 [2020-09-21 11:13:41,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:41,156 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 147 transitions. [2020-09-21 11:13:41,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:13:41,156 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 147 transitions. [2020-09-21 11:13:41,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 11:13:41,158 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:41,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:41,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:13:41,159 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:41,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:41,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1745786735, now seen corresponding path program 1 times [2020-09-21 11:13:41,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:41,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [599281569] [2020-09-21 11:13:41,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:41,520 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:41,520 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:41,520 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:41,520 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:41,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:13:41,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:41,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-09-21 11:13:41,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:41,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 11:13:41,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:41,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:13:41,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:41,886 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:41,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:41,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:41,979 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:41,979 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:41,979 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:41,979 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:41,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:41,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:41,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 11:13:41,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:41,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:41,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:41,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:41,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,022 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,022 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,023 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,023 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:42,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:42,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,028 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,028 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,028 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,028 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:42,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:42,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:42,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,034 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,034 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,035 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,035 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:42,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:42,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:42,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,040 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,041 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,041 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,041 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:42,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:42,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:42,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:42,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:13:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,060 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,061 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,061 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,061 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:13:42,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:42,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:42,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 11:13:42,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:42,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,086 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,087 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,087 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,087 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:42,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:42,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:42,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:42,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:13:42,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,157 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,157 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,159 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,159 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:42,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:42,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:42,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:42,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 11:13:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,165 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,165 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,166 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,166 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:42,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:42,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:42,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:42,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:13:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,176 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,176 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,177 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,177 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:42,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:42,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:42,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:42,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,191 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 11:13:42,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [599281569] [2020-09-21 11:13:42,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:42,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:13:42,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646792719] [2020-09-21 11:13:42,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:13:42,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:42,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:13:42,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:13:42,195 INFO L87 Difference]: Start difference. First operand 128 states and 147 transitions. Second operand 7 states. [2020-09-21 11:13:42,638 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:44,030 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:13:44,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:44,766 INFO L93 Difference]: Finished difference Result 365 states and 446 transitions. [2020-09-21 11:13:44,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:13:44,767 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-09-21 11:13:44,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:44,771 INFO L225 Difference]: With dead ends: 365 [2020-09-21 11:13:44,771 INFO L226 Difference]: Without dead ends: 261 [2020-09-21 11:13:44,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:44,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-09-21 11:13:44,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 218. [2020-09-21 11:13:44,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-21 11:13:44,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 245 transitions. [2020-09-21 11:13:44,828 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 245 transitions. Word has length 65 [2020-09-21 11:13:44,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:44,829 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 245 transitions. [2020-09-21 11:13:44,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:13:44,829 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 245 transitions. [2020-09-21 11:13:44,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-21 11:13:44,830 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:44,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:44,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:13:44,831 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:44,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:44,832 INFO L82 PathProgramCache]: Analyzing trace with hash 189412453, now seen corresponding path program 1 times [2020-09-21 11:13:44,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:44,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828909797] [2020-09-21 11:13:44,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:44,884 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:44,884 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -49 [2020-09-21 11:13:44,885 FATAL L256 erpolLogProxyWrapper]: Difference in width: 49 [2020-09-21 11:13:44,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:44,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:13:44,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:44,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:13:44,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:44,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:44,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-21 11:13:44,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:44,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,145 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:45,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,158 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,158 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,158 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,158 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:45,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:45,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:45,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:45,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,215 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,216 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,216 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,216 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:45,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:45,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:45,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:45,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:45,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,220 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,220 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,220 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,220 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:45,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:45,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:45,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:45,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,224 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,224 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,224 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:45,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:45,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:45,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:45,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,230 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,231 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,231 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,231 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:45,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:45,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:45,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:45,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:13:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,248 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,248 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,248 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,249 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:13:45,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:45,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:45,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:13:45,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:45,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,262 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,263 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,263 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:45,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:45,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:45,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:13:45,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:45,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,293 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,293 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,293 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,294 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:45,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:45,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:45,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:13:45,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:45,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,323 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,323 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,323 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,324 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:45,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:45,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:13:45,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:45,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,346 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,346 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,346 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,347 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:45,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:45,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:45,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:13:45,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:45,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 11:13:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,351 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,351 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,352 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,352 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:45,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:45,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:45,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:45,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:45,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:13:45,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,356 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,356 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,356 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,356 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:45,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:45,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:45,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:45,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:45,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,367 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 11:13:45,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828909797] [2020-09-21 11:13:45,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:45,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:13:45,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165194758] [2020-09-21 11:13:45,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:45,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:45,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:45,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:45,370 INFO L87 Difference]: Start difference. First operand 218 states and 245 transitions. Second operand 9 states. [2020-09-21 11:13:46,320 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:46,626 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:46,936 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:47,305 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:48,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:48,205 INFO L93 Difference]: Finished difference Result 458 states and 549 transitions. [2020-09-21 11:13:48,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:13:48,206 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-09-21 11:13:48,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:48,209 INFO L225 Difference]: With dead ends: 458 [2020-09-21 11:13:48,209 INFO L226 Difference]: Without dead ends: 264 [2020-09-21 11:13:48,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:13:48,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-09-21 11:13:48,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 222. [2020-09-21 11:13:48,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-09-21 11:13:48,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 249 transitions. [2020-09-21 11:13:48,260 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 249 transitions. Word has length 79 [2020-09-21 11:13:48,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:48,261 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 249 transitions. [2020-09-21 11:13:48,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:48,261 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 249 transitions. [2020-09-21 11:13:48,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-21 11:13:48,262 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:48,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:48,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:13:48,263 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:48,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:48,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1196790941, now seen corresponding path program 1 times [2020-09-21 11:13:48,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:48,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [352947516] [2020-09-21 11:13:48,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,714 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:48,715 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,715 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,715 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:13:48,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-09-21 11:13:48,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:48,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:48,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-21 11:13:48,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,992 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:48,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,054 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,054 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,054 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,055 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:49,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:13:49,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:49,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:49,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,088 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,088 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,089 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,089 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:49,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:49,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:49,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,094 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,094 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,094 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:49,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:49,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:49,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,099 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,100 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,100 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,100 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:49,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:49,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:49,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:49,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:49,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,105 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,106 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,106 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,106 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:49,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:49,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:49,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:13:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,127 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,127 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,127 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,127 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:13:49,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:49,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 11:13:49,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,135 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,136 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,136 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,136 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:49,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,146 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,147 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,147 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,147 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:49,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,152 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,153 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,153 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,153 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:49,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,160 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,160 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,160 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,160 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:49,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 11:13:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,168 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,168 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,168 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,168 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:49,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:49,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:49,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:49,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:13:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,184 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,185 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,185 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,185 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:49,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:49,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,197 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 11:13:49,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [352947516] [2020-09-21 11:13:49,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:49,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:13:49,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415392531] [2020-09-21 11:13:49,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:13:49,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:49,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:13:49,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:13:49,201 INFO L87 Difference]: Start difference. First operand 222 states and 249 transitions. Second operand 8 states. [2020-09-21 11:13:49,643 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:50,927 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:51,280 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:51,582 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:51,863 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:52,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:52,913 INFO L93 Difference]: Finished difference Result 591 states and 725 transitions. [2020-09-21 11:13:52,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:52,913 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-09-21 11:13:52,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:52,917 INFO L225 Difference]: With dead ends: 591 [2020-09-21 11:13:52,917 INFO L226 Difference]: Without dead ends: 393 [2020-09-21 11:13:52,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:13:52,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2020-09-21 11:13:52,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 354. [2020-09-21 11:13:52,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-09-21 11:13:52,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 404 transitions. [2020-09-21 11:13:52,990 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 404 transitions. Word has length 79 [2020-09-21 11:13:52,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:52,991 INFO L479 AbstractCegarLoop]: Abstraction has 354 states and 404 transitions. [2020-09-21 11:13:52,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:13:52,991 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 404 transitions. [2020-09-21 11:13:52,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:13:52,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:52,993 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:52,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:13:52,993 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:52,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:52,993 INFO L82 PathProgramCache]: Analyzing trace with hash -818019767, now seen corresponding path program 1 times [2020-09-21 11:13:52,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:52,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [305304746] [2020-09-21 11:13:52,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,381 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,381 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,382 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,382 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:13:53,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-09-21 11:13:53,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:53,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:53,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-21 11:13:53,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:53,726 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:53,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,783 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,783 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:53,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 11:13:53,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:53,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,815 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,816 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:53,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:53,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,825 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,825 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,825 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,826 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:53,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:53,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,830 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,830 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,830 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,831 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:53,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:53,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,835 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,835 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,835 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,836 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:53,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:53,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,852 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,852 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,852 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,852 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:53,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:53,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:53,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:53,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:53,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:13:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,889 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,890 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,890 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,890 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:13:53,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:13:53,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-21 11:13:53,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,909 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,910 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,910 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,910 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:53,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:13:53,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,919 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,919 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,920 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,920 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:53,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:53,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,927 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,927 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,927 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,927 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:53,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:53,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,934 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,934 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,934 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,934 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:53,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:53,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:13:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,939 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,939 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,939 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,939 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:53,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:53,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:53,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:53,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:53,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:13:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,943 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,943 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,943 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:53,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:53,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:53,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:53,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:53,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,957 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 11:13:53,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [305304746] [2020-09-21 11:13:53,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:53,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:13:53,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115401863] [2020-09-21 11:13:53,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:53,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:53,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:53,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:53,959 INFO L87 Difference]: Start difference. First operand 354 states and 404 transitions. Second operand 9 states. [2020-09-21 11:13:54,445 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:55,050 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:56,832 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:58,373 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-21 11:13:59,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:59,780 INFO L93 Difference]: Finished difference Result 941 states and 1149 transitions. [2020-09-21 11:13:59,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-21 11:13:59,782 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-09-21 11:13:59,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:59,787 INFO L225 Difference]: With dead ends: 941 [2020-09-21 11:13:59,787 INFO L226 Difference]: Without dead ends: 732 [2020-09-21 11:13:59,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2020-09-21 11:13:59,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2020-09-21 11:13:59,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 684. [2020-09-21 11:13:59,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2020-09-21 11:13:59,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 801 transitions. [2020-09-21 11:13:59,907 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 801 transitions. Word has length 83 [2020-09-21 11:13:59,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:59,907 INFO L479 AbstractCegarLoop]: Abstraction has 684 states and 801 transitions. [2020-09-21 11:13:59,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:59,908 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 801 transitions. [2020-09-21 11:13:59,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:13:59,909 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:59,909 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:59,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:13:59,910 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:59,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:59,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1615493300, now seen corresponding path program 1 times [2020-09-21 11:13:59,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:59,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967013514] [2020-09-21 11:13:59,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:59,956 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:59,956 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -59 [2020-09-21 11:13:59,956 FATAL L256 erpolLogProxyWrapper]: Difference in width: 59 [2020-09-21 11:13:59,957 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:59,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:13:59,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:59,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:59,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:59,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:59,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-09-21 11:13:59,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:59,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,228 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:00,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,237 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,238 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,238 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,238 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:00,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:00,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,264 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,265 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,265 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,265 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:00,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:00,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,269 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,269 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,269 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,269 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:00,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:00,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,272 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,273 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,273 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,273 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:00,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:00,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,277 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,277 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,277 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,277 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:00,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:00,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,294 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,294 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,295 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,295 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:00,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:00,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:14:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,319 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,319 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,319 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,319 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:14:00,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:00,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:00,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:14:00,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:00,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,333 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,333 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,334 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,334 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:14:00,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:00,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:00,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:14:00,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:00,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:00,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,375 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,375 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,375 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,376 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:00,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:00,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:00,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:14:00,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:00,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,422 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,422 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,422 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,422 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:00,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:00,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:00,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,429 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,430 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:00,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:00,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:14:00,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:00,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:14:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,437 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,437 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,437 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,437 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:00,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:00,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:00,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:00,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:14:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,443 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,443 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,444 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,444 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:00,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:00,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:00,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:00,503 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 11:14:00,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967013514] [2020-09-21 11:14:00,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:00,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:14:00,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706057268] [2020-09-21 11:14:00,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:14:00,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:00,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:14:00,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:14:00,507 INFO L87 Difference]: Start difference. First operand 684 states and 801 transitions. Second operand 9 states. [2020-09-21 11:14:01,692 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:01,993 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:14:02,299 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:02,596 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:03,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:03,890 INFO L93 Difference]: Finished difference Result 1268 states and 1526 transitions. [2020-09-21 11:14:03,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:14:03,891 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-09-21 11:14:03,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:03,896 INFO L225 Difference]: With dead ends: 1268 [2020-09-21 11:14:03,896 INFO L226 Difference]: Without dead ends: 733 [2020-09-21 11:14:03,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:14:03,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2020-09-21 11:14:04,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 689. [2020-09-21 11:14:04,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-09-21 11:14:04,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 807 transitions. [2020-09-21 11:14:04,055 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 807 transitions. Word has length 83 [2020-09-21 11:14:04,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:04,055 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 807 transitions. [2020-09-21 11:14:04,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:14:04,055 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 807 transitions. [2020-09-21 11:14:04,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:14:04,058 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:04,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:04,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:14:04,059 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:04,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:04,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1293270602, now seen corresponding path program 1 times [2020-09-21 11:14:04,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:04,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1221032522] [2020-09-21 11:14:04,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,118 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,118 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,118 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,118 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:14:04,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:04,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:04,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 11:14:04,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:04,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,382 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:04,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,391 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,391 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,392 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,392 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,417 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,417 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,418 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,418 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:04,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,421 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,421 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,421 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,422 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:04,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:04,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,425 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,425 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,425 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,425 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:04,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,429 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,429 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,429 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:04,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:04,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,447 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,447 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,448 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,448 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:14:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,464 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,464 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,464 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,465 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:14:04,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:04,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:04,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:14:04,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:04,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:04,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,478 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,478 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,479 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,479 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:14:04,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:04,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:04,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:14:04,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:04,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,492 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,492 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,493 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,493 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:04,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:04,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:04,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:14:04,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:04,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,520 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,520 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,520 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,520 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:04,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:04,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:14:04,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:04,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:04,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,535 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,535 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,535 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:04,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:14:04,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:14:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,543 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,543 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,543 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,543 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:04,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:04,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:04,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:04,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:04,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:04,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:14:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:04,547 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:04,547 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:04,548 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:04,548 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:04,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [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: 0 [2020-09-21 11:14:04,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:04,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:04,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [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: 0 [2020-09-21 11:14:04,560 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 11:14:04,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1221032522] [2020-09-21 11:14:04,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:04,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:14:04,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579379158] [2020-09-21 11:14:04,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:14:04,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:04,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:14:04,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:14:04,563 INFO L87 Difference]: Start difference. First operand 689 states and 807 transitions. Second operand 8 states. [2020-09-21 11:14:05,516 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:05,814 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:06,089 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:07,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:07,309 INFO L93 Difference]: Finished difference Result 1260 states and 1523 transitions. [2020-09-21 11:14:07,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:14:07,309 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-09-21 11:14:07,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:07,315 INFO L225 Difference]: With dead ends: 1260 [2020-09-21 11:14:07,315 INFO L226 Difference]: Without dead ends: 720 [2020-09-21 11:14:07,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 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 11:14:07,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2020-09-21 11:14:07,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 681. [2020-09-21 11:14:07,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 681 states. [2020-09-21 11:14:07,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 796 transitions. [2020-09-21 11:14:07,480 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 796 transitions. Word has length 83 [2020-09-21 11:14:07,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:07,481 INFO L479 AbstractCegarLoop]: Abstraction has 681 states and 796 transitions. [2020-09-21 11:14:07,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:14:07,481 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 796 transitions. [2020-09-21 11:14:07,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-09-21 11:14:07,483 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:07,483 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:07,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:14:07,484 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:07,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:07,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1237960737, now seen corresponding path program 1 times [2020-09-21 11:14:07,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:07,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108904217] [2020-09-21 11:14:07,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:07,955 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:07,956 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:07,956 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:07,956 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:07,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-21 11:14:07,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:07,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-09-21 11:14:07,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:07,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:14:07,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:07,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-09-21 11:14:07,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,253 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:08,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,314 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,314 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,314 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,315 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:08,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:14:08,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:08,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:08,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:14:08,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,344 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,345 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,345 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,345 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:08,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:08,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:08,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:08,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:08,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,349 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,349 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,349 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:08,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:08,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:08,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:08,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:08,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,353 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,353 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,353 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,354 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:08,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:08,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:08,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:08,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:08,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,358 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,358 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,358 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,358 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:08,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:08,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:08,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:08,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:08,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,374 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,374 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,375 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,375 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:08,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:08,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:08,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:08,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:08,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:14:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,405 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,405 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,405 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,405 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-21 11:14:08,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:14:08,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:14:08,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-21 11:14:08,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:14:08,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,450 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,450 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,451 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,451 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 11:14:08,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:14:08,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:14:08,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:08,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-21 11:14:08,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:08,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,463 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,463 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,463 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,464 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:08,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:08,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:08,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:08,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:08,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,468 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,468 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,469 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,469 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:08,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:08,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:08,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:08,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:08,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,486 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,486 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,486 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,486 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 11:14:08,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:14:08,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:14:08,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:08,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:14:08,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:08,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,575 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,575 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,575 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,576 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:08,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:14:08,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:08,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:08,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:14:08,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:08,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,615 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,615 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,615 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,615 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:08,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:08,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:14:08,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:08,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:14:08,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:08,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-21 11:14:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,644 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,644 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,645 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,645 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:08,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:08,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:08,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:08,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:08,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:08,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-21 11:14:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:08,651 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:08,651 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:08,651 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:08,651 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:08,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:08,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:08,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:08,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:08,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:08,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:08,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:08,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:08,674 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 11:14:08,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108904217] [2020-09-21 11:14:08,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:08,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 11:14:08,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291705673] [2020-09-21 11:14:08,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:14:08,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:08,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:14:08,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:14:08,677 INFO L87 Difference]: Start difference. First operand 681 states and 796 transitions. Second operand 12 states. [2020-09-21 11:14:09,415 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:10,425 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:11,424 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:11,823 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:12,154 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:12,452 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:14:12,816 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:14:13,137 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:14:13,714 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 11:14:14,017 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:14:14,413 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:14:14,780 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-21 11:14:16,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:16,865 INFO L93 Difference]: Finished difference Result 2021 states and 2446 transitions. [2020-09-21 11:14:16,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-21 11:14:16,874 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 95 [2020-09-21 11:14:16,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:16,882 INFO L225 Difference]: With dead ends: 2021 [2020-09-21 11:14:16,882 INFO L226 Difference]: Without dead ends: 1364 [2020-09-21 11:14:16,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2020-09-21 11:14:16,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2020-09-21 11:14:17,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1301. [2020-09-21 11:14:17,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1301 states. [2020-09-21 11:14:17,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1504 transitions. [2020-09-21 11:14:17,108 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1504 transitions. Word has length 95 [2020-09-21 11:14:17,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:17,109 INFO L479 AbstractCegarLoop]: Abstraction has 1301 states and 1504 transitions. [2020-09-21 11:14:17,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:14:17,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1504 transitions. [2020-09-21 11:14:17,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-21 11:14:17,111 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:17,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:17,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:14:17,111 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:17,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:17,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1779666499, now seen corresponding path program 1 times [2020-09-21 11:14:17,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:17,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1680116644] [2020-09-21 11:14:17,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:17,163 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:17,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:17,164 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:17,164 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:17,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-21 11:14:17,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:17,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:17,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:17,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:17,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-21 11:14:17,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:14:17,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:17,508 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:17,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:17,517 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:17,517 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:17,518 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:17,518 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:17,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:17,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:17,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:17,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:17,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:17,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:17,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:17,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:17,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:17,547 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:17,548 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:17,548 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:17,548 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:17,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:17,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:17,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:17,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:17,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:17,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:17,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:17,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:17,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:17,561 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:17,562 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:17,562 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:17,562 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:17,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:17,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:17,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:14:17,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:17,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:17,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:17,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:17,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:17,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:17,568 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:17,568 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:17,569 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:17,569 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:17,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:17,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:17,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:17,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:17,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:17,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:17,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:17,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:17,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:17,574 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:17,575 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:17,575 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:17,575 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:17,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:17,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:17,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:17,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:17,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:17,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:17,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:17,595 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:17,595 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:17,595 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:17,595 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:17,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:17,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:17,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:17,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:17,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:17,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:17,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:17,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:14:17,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:14:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:17,617 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:17,618 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:17,618 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:17,619 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:17,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:17,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:17,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:17,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:17,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:17,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:17,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:17,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:14:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:17,650 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:17,650 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:17,651 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:17,651 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:17,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-21 11:14:17,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:17,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:17,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:17,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:17,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:17,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:14:17,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:17,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:17,669 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:17,670 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:17,670 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:17,670 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:17,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 11:14:17,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:17,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:17,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:17,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:17,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:17,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:14:17,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:17,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:17,688 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:17,688 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:17,688 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:17,689 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:17,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:17,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:17,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:17,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:17,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:17,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:17,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:14:17,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:17,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:17,701 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:17,702 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:17,702 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:17,703 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:17,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:17,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:17,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:17,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:17,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:17,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:17,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:14:17,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:17,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:17,715 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:17,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:17,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:17,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:17,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 11:14:17,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:17,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:17,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:17,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:17,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:17,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-21 11:14:17,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:17,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:17,724 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:17,724 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:17,725 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:17,725 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:17,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:17,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:17,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:17,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:17,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:17,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:17,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:17,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:17,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:17,731 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:17,731 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:17,732 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:17,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:17,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:17,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:17,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:17,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:17,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:17,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:17,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:17,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:17,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 11:14:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:17,742 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:17,742 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:17,742 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:17,743 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:17,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:17,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:17,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:17,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:17,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:17,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:17,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:17,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:17,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 11:14:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:17,766 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:17,766 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:17,767 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:17,767 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:17,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:17,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:17,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:17,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:17,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:17,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:17,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:17,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:17,793 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 11:14:17,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1680116644] [2020-09-21 11:14:17,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:17,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:14:17,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663892912] [2020-09-21 11:14:17,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:14:17,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:17,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:14:17,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:14:17,797 INFO L87 Difference]: Start difference. First operand 1301 states and 1504 transitions. Second operand 10 states. [2020-09-21 11:14:19,028 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:19,623 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:20,392 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:20,723 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:21,025 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:22,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:22,477 INFO L93 Difference]: Finished difference Result 2609 states and 3217 transitions. [2020-09-21 11:14:22,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 11:14:22,478 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 99 [2020-09-21 11:14:22,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:22,491 INFO L225 Difference]: With dead ends: 2609 [2020-09-21 11:14:22,491 INFO L226 Difference]: Without dead ends: 1580 [2020-09-21 11:14:22,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=162, Invalid=390, Unknown=0, NotChecked=0, Total=552 [2020-09-21 11:14:22,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2020-09-21 11:14:22,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1283. [2020-09-21 11:14:22,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1283 states. [2020-09-21 11:14:22,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1480 transitions. [2020-09-21 11:14:22,753 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1480 transitions. Word has length 99 [2020-09-21 11:14:22,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:22,754 INFO L479 AbstractCegarLoop]: Abstraction has 1283 states and 1480 transitions. [2020-09-21 11:14:22,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:14:22,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1480 transitions. [2020-09-21 11:14:22,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-21 11:14:22,758 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:22,759 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, 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 11:14:22,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:14:22,759 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:22,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:22,760 INFO L82 PathProgramCache]: Analyzing trace with hash 677704555, now seen corresponding path program 1 times [2020-09-21 11:14:22,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:22,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657885385] [2020-09-21 11:14:22,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:22,818 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:22,818 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:22,819 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:22,819 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:22,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-09-21 11:14:22,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:22,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:14:22,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:22,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:22,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-21 11:14:22,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:22,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,052 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:23,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,060 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,060 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,060 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,060 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:23,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,086 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,086 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,086 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:23,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:23,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:23,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,091 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,091 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,092 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,092 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:23,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,095 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:23,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,102 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,102 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,102 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,103 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:23,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:23,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:23,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:14:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,128 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,128 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,128 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,128 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-21 11:14:23,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:23,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:23,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 11:14:23,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:23,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,159 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,160 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,160 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,160 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:14:23,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:23,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:23,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:14:23,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:23,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:23,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,179 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,179 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:14:23,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:23,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:23,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:14:23,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:23,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,225 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,225 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,225 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,226 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:23,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:23,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:23,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:14:23,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,259 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,259 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,260 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,260 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:23,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,271 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,271 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,271 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,271 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:14:23,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 11:14:23,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,286 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,286 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,286 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,287 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:23,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,292 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,292 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,292 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,292 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:23,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,296 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,297 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,297 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:23,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:14:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,304 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,304 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,304 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,304 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:23,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:23,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:14:23,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,308 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,309 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,309 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,309 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:23,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-21 11:14:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,368 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,369 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,369 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,369 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:23,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:23,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-21 11:14:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,377 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,378 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,378 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,378 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:14:23,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:23,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:14:23,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,384 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,384 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,384 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:14:23,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:23,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:23,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,388 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,388 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,388 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,388 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:23,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 11:14:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,392 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,392 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,392 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,393 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:23,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-21 11:14:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,398 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,398 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,399 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,399 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:23,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:23,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-21 11:14:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,402 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,403 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,403 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,403 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:23,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:23,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,425 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-21 11:14:23,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657885385] [2020-09-21 11:14:23,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:23,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:14:23,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061276468] [2020-09-21 11:14:23,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:14:23,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:23,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:14:23,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:14:23,429 INFO L87 Difference]: Start difference. First operand 1283 states and 1480 transitions. Second operand 10 states. [2020-09-21 11:14:24,598 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:24,894 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:14:25,190 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:25,480 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:14:26,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:26,671 INFO L93 Difference]: Finished difference Result 2370 states and 2785 transitions. [2020-09-21 11:14:26,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:14:26,672 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 143 [2020-09-21 11:14:26,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:26,680 INFO L225 Difference]: With dead ends: 2370 [2020-09-21 11:14:26,680 INFO L226 Difference]: Without dead ends: 1111 [2020-09-21 11:14:26,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:14:26,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2020-09-21 11:14:26,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1077. [2020-09-21 11:14:26,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1077 states. [2020-09-21 11:14:26,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1234 transitions. [2020-09-21 11:14:26,916 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1234 transitions. Word has length 143 [2020-09-21 11:14:26,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:26,917 INFO L479 AbstractCegarLoop]: Abstraction has 1077 states and 1234 transitions. [2020-09-21 11:14:26,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:14:26,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1234 transitions. [2020-09-21 11:14:26,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-09-21 11:14:26,920 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:26,920 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, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:26,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:14:26,920 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:26,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:26,921 INFO L82 PathProgramCache]: Analyzing trace with hash 744245076, now seen corresponding path program 1 times [2020-09-21 11:14:26,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:26,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092190511] [2020-09-21 11:14:26,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:27,329 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:27,329 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:27,329 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:27,329 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:27,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-21 11:14:27,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:27,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-09-21 11:14:27,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:14:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:27,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-09-21 11:14:27,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0