/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options 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_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:49:37,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:49:37,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:49:37,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:49:37,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:49:37,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:49:37,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:49:37,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:49:37,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:49:37,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:49:37,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:49:37,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:49:37,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:49:37,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:49:37,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:49:37,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:49:37,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:49:37,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:49:37,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:49:37,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:49:37,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:49:37,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:49:37,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:49:37,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:49:37,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:49:37,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:49:37,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:49:37,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:49:37,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:49:37,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:49:37,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:49:37,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:49:37,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:49:37,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:49:37,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:49:37,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:49:37,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:49:37,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:49:37,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:49:37,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:49:37,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:49:37,329 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 15:49:37,355 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:49:37,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:49:37,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:49:37,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:49:37,357 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:49:37,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:49:37,357 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:49:37,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:49:37,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:49:37,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:49:37,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:49:37,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:49:37,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:49:37,359 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:49:37,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:49:37,359 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:49:37,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:49:37,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:49:37,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:49:37,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:49:37,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:49:37,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:49:37,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:49:37,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:49:37,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:49:37,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:49:37,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:49:37,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:49:37,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:49:37,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;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; [2020-09-24 15:49:37,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:49:37,833 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:49:37,837 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:49:37,839 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:49:37,840 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:49:37,841 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-09-24 15:49:37,928 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83fec7ff1/64d78a9bd0734ffa9b0ef06f70dead98/FLAGf398bdab7 [2020-09-24 15:49:38,512 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:49:38,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-09-24 15:49:38,528 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83fec7ff1/64d78a9bd0734ffa9b0ef06f70dead98/FLAGf398bdab7 [2020-09-24 15:49:38,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83fec7ff1/64d78a9bd0734ffa9b0ef06f70dead98 [2020-09-24 15:49:38,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:49:38,854 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:49:38,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:49:38,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:49:38,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:49:38,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:49:38" (1/1) ... [2020-09-24 15:49:38,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d7d7c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:38, skipping insertion in model container [2020-09-24 15:49:38,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:49:38" (1/1) ... [2020-09-24 15:49:38,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:49:38,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:49:39,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:49:39,342 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:49:39,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:49:39,555 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:49:39,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:39 WrapperNode [2020-09-24 15:49:39,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:49:39,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:49:39,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:49:39,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:49:39,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:39" (1/1) ... [2020-09-24 15:49:39,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:39" (1/1) ... [2020-09-24 15:49:39,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:39" (1/1) ... [2020-09-24 15:49:39,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:39" (1/1) ... [2020-09-24 15:49:39,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:39" (1/1) ... [2020-09-24 15:49:39,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:39" (1/1) ... [2020-09-24 15:49:39,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:39" (1/1) ... [2020-09-24 15:49:39,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:49:39,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:49:39,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:49:39,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:49:39,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:49:39,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:49:39,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:49:39,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:49:39,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:49:39,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:49:39,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:49:39,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:49:39,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:49:39,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:49:39,738 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:49:39,738 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:49:39,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:49:39,738 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:49:39,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:49:39,738 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:49:39,739 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:49:39,739 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:49:39,739 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:49:39,739 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:49:39,740 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:49:39,740 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:49:39,740 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:49:39,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:49:39,740 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:49:39,741 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:49:39,741 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 15:49:39,741 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:49:39,741 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 15:49:39,741 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:49:39,741 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:49:39,742 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:49:39,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:49:39,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:49:39,742 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:49:39,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 15:49:39,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:49:39,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 15:49:39,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:49:39,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:49:39,743 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:49:39,743 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:49:39,743 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:49:39,744 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:49:39,744 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:49:39,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:49:39,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:49:39,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:49:39,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:49:39,744 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:49:39,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:49:39,745 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:49:39,745 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:49:39,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:49:39,745 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:49:39,745 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:49:39,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:49:39,746 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:49:39,746 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:49:39,746 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:49:39,746 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:49:39,746 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:49:39,747 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:49:39,747 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:49:39,747 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:49:39,747 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:49:39,747 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:49:39,747 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:49:39,747 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:49:39,748 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:49:39,748 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:49:39,748 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:49:39,748 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:49:39,748 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:49:39,748 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:49:39,749 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:49:39,749 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 15:49:39,749 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:49:39,749 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:49:39,749 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:49:39,749 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 15:49:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:49:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 15:49:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 15:49:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:49:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:49:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:49:39,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:49:39,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:49:40,937 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:49:40,938 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:49:40,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:49:40 BoogieIcfgContainer [2020-09-24 15:49:40,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:49:40,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:49:40,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:49:40,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:49:40,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:49:38" (1/3) ... [2020-09-24 15:49:40,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eaf7270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:49:40, skipping insertion in model container [2020-09-24 15:49:40,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:49:39" (2/3) ... [2020-09-24 15:49:40,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eaf7270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:49:40, skipping insertion in model container [2020-09-24 15:49:40,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:49:40" (3/3) ... [2020-09-24 15:49:40,953 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2020-09-24 15:49:40,964 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:49:40,976 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:49:40,999 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:49:41,033 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:49:41,033 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:49:41,034 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:49:41,034 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:49:41,034 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:49:41,034 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:49:41,034 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:49:41,034 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:49:41,063 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states. [2020-09-24 15:49:41,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 15:49:41,080 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:49:41,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:49:41,082 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:49:41,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:49:41,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1598852952, now seen corresponding path program 1 times [2020-09-24 15:49:41,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:49:41,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702261686] [2020-09-24 15:49:41,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:49:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:41,450 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:41,450 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:41,450 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:41,451 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:41,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 15:49:41,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:41,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:49:41,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:41,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:41,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 15:49:41,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:41,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:41,867 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:49:41,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:49:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:41,891 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:41,891 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:41,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:41,892 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:41,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:49:41,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:41,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:49:41,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:41,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:41,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:41,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:41,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:42,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:49:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:42,038 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:42,039 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:42,039 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:42,039 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:42,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:42,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:42,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:42,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:42,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:42,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:42,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:42,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:42,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:49:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:42,051 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:42,052 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:42,052 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:42,052 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:42,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:42,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:42,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:42,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:42,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:42,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:42,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:42,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:42,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:49:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:42,058 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:42,059 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:42,059 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:42,059 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:42,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:42,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:42,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:42,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:42,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:42,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:42,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:42,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:49:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:42,066 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:42,066 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:42,066 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:42,066 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:42,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:42,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:42,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:42,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:42,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:42,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:42,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:42,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:42,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:49:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:42,071 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:42,072 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:42,072 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:42,072 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:42,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:42,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:42,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:42,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:42,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:42,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:49:42,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:42,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:42,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 15:49:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:42,095 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:42,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:42,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:42,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:42,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:42,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:42,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:42,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:42,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:42,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:49:42,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:42,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:42,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:49:42,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702261686] [2020-09-24 15:49:42,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:49:42,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 15:49:42,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257741535] [2020-09-24 15:49:42,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 15:49:42,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:49:42,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 15:49:42,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:49:42,164 INFO L87 Difference]: Start difference. First operand 278 states. Second operand 3 states. [2020-09-24 15:49:43,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:49:43,323 INFO L93 Difference]: Finished difference Result 419 states and 501 transitions. [2020-09-24 15:49:43,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 15:49:43,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 15:49:43,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:49:43,347 INFO L225 Difference]: With dead ends: 419 [2020-09-24 15:49:43,347 INFO L226 Difference]: Without dead ends: 266 [2020-09-24 15:49:43,355 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 [2020-09-24 15:49:43,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-24 15:49:43,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 227. [2020-09-24 15:49:43,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-24 15:49:43,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 245 transitions. [2020-09-24 15:49:43,507 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 245 transitions. Word has length 142 [2020-09-24 15:49:43,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:49:43,512 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 245 transitions. [2020-09-24 15:49:43,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 15:49:43,513 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 245 transitions. [2020-09-24 15:49:43,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 15:49:43,526 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:49:43,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:49:43,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:49:43,527 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:49:43,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:49:43,527 INFO L82 PathProgramCache]: Analyzing trace with hash -469194886, now seen corresponding path program 1 times [2020-09-24 15:49:43,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:49:43,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134013959] [2020-09-24 15:49:43,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:49:43,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:43,674 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:43,675 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:43,679 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:43,679 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:43,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 15:49:43,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:43,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:49:43,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:43,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:43,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 15:49:43,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:49:43,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:44,062 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:49:44,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:49:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:44,076 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:44,077 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:44,077 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:44,077 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:44,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:49:44,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:44,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:44,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:44,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:44,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:44,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:44,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:44,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:49:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:44,121 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:44,121 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:44,122 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:44,122 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:44,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:44,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:44,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:44,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:44,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:44,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:44,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:44,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:44,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:49:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:44,126 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:44,126 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:44,126 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:44,126 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:44,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:44,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:44,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:44,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:44,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:44,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:44,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:44,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:44,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:49:44,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:44,130 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:44,130 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:44,130 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:44,131 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:44,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:44,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:44,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:44,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:44,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:44,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:44,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:44,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:44,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:49:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:44,135 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:44,135 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:44,136 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:44,136 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:44,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:44,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:44,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:44,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:44,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:44,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:44,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:44,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:44,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:49:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:44,140 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:44,140 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:44,140 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:44,140 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:44,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:44,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:44,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:44,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:44,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:44,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:49:44,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:44,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:44,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:49:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:44,145 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:44,145 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:44,145 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:44,146 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:44,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:44,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:44,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:44,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:44,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:44,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:49:44,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:44,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:44,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:49:44,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134013959] [2020-09-24 15:49:44,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:49:44,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:49:44,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580937203] [2020-09-24 15:49:44,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:49:44,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:49:44,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:49:44,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:49:44,176 INFO L87 Difference]: Start difference. First operand 227 states and 245 transitions. Second operand 4 states. [2020-09-24 15:49:44,806 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:49:45,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:49:45,563 INFO L93 Difference]: Finished difference Result 336 states and 376 transitions. [2020-09-24 15:49:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:49:45,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 15:49:45,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:49:45,572 INFO L225 Difference]: With dead ends: 336 [2020-09-24 15:49:45,572 INFO L226 Difference]: Without dead ends: 249 [2020-09-24 15:49:45,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:49:45,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-09-24 15:49:45,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 217. [2020-09-24 15:49:45,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-24 15:49:45,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 232 transitions. [2020-09-24 15:49:45,604 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 232 transitions. Word has length 143 [2020-09-24 15:49:45,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:49:45,605 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 232 transitions. [2020-09-24 15:49:45,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:49:45,605 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 232 transitions. [2020-09-24 15:49:45,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-24 15:49:45,607 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:49:45,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:49:45,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:49:45,607 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:49:45,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:49:45,608 INFO L82 PathProgramCache]: Analyzing trace with hash 162245926, now seen corresponding path program 1 times [2020-09-24 15:49:45,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:49:45,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529191828] [2020-09-24 15:49:45,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:49:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:45,672 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:49:45,672 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:45,672 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:45,672 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:45,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 15:49:45,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:45,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:49:45,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:45,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:45,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 15:49:45,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 15:49:45,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:45,989 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:49:45,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:49:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:46,031 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:46,032 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:46,032 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:46,032 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:46,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:49:46,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:46,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:49:46,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:46,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:46,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:46,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:49:46,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:46,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:49:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:46,087 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:46,087 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:46,087 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:46,087 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:46,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:46,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:46,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:46,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:46,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:46,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:46,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:46,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:46,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:49:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:46,092 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:46,092 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:46,092 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:46,093 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:46,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:46,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:46,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:46,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:46,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:46,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:46,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:46,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:46,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:49:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:46,098 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:46,098 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:46,098 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:46,098 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:46,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:46,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:46,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:46,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:46,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:46,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:46,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:49:46,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:46,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:49:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:46,104 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:46,104 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:46,105 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:46,105 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:46,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:46,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:46,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:46,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:46,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:46,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:46,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:46,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:46,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 15:49:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:46,109 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:46,109 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:46,109 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:46,110 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:46,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:46,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:46,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:49:46,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:46,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:46,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:49:46,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:46,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:46,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 15:49:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:46,114 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:46,114 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:46,114 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:46,114 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:46,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:46,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:46,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:49:46,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:49:46,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:46,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:46,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:49:46,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [529191828] [2020-09-24 15:49:46,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:49:46,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:49:46,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374767506] [2020-09-24 15:49:46,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:49:46,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:49:46,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:49:46,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:49:46,144 INFO L87 Difference]: Start difference. First operand 217 states and 232 transitions. Second operand 4 states. [2020-09-24 15:49:46,696 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:49:47,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:49:47,330 INFO L93 Difference]: Finished difference Result 356 states and 401 transitions. [2020-09-24 15:49:47,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:49:47,331 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2020-09-24 15:49:47,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:49:47,335 INFO L225 Difference]: With dead ends: 356 [2020-09-24 15:49:47,335 INFO L226 Difference]: Without dead ends: 249 [2020-09-24 15:49:47,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:49:47,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-09-24 15:49:47,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 217. [2020-09-24 15:49:47,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-24 15:49:47,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 231 transitions. [2020-09-24 15:49:47,366 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 231 transitions. Word has length 152 [2020-09-24 15:49:47,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:49:47,367 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 231 transitions. [2020-09-24 15:49:47,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:49:47,367 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 231 transitions. [2020-09-24 15:49:47,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 15:49:47,369 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:49:47,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:49:47,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:49:47,370 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:49:47,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:49:47,370 INFO L82 PathProgramCache]: Analyzing trace with hash 705113863, now seen corresponding path program 1 times [2020-09-24 15:49:47,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:49:47,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010337391] [2020-09-24 15:49:47,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:49:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:47,451 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:47,451 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:47,451 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:47,452 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:47,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-24 15:49:47,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:47,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:49:47,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:47,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:49:47,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 15:49:47,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 15:49:47,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:47,807 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:49:47,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:49:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:47,862 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:47,862 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:47,862 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:47,863 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:47,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:49:47,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:47,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:49:47,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:47,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:47,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:47,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 15:49:47,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:47,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:49:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:47,931 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:47,931 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:47,932 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:47,932 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:47,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:47,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:47,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:49:47,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:47,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:47,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:47,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:47,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:47,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:49:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:47,940 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:47,940 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:47,940 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:47,941 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:47,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:47,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:47,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:49:47,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:47,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:47,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:47,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:47,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:47,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:49:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:47,948 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:47,948 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:47,948 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:47,949 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:47,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:47,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:47,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:49:47,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:47,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:47,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:47,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:49:47,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:47,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:49:47,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:47,957 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:47,957 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:47,957 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:47,958 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:47,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:47,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:47,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:49:47,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:47,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:47,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:47,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:47,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:47,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:49:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:47,983 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:47,984 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:47,984 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:47,984 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:47,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 15:49:47,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:47,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:49:47,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:47,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:49:47,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 15:49:47,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 15:49:47,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:48,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:49:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:48,082 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:48,082 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:48,082 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:48,082 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:48,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:48,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:48,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:49:48,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:48,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:48,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:48,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:48,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:48,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 15:49:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:48,090 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:48,090 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:48,090 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:48,091 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:48,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:48,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:48,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:48,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:48,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:48,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:49:48,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:48,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:48,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 15:49:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:48,097 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:48,097 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:48,098 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:48,098 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:48,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:48,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:48,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:48,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:48,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:48,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:49:48,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:48,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:48,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:49:48,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2010337391] [2020-09-24 15:49:48,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:49:48,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:49:48,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717626696] [2020-09-24 15:49:48,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:49:48,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:49:48,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:49:48,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:49:48,159 INFO L87 Difference]: Start difference. First operand 217 states and 231 transitions. Second operand 7 states. [2020-09-24 15:49:48,681 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:49:50,006 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:49:50,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:49:50,529 INFO L93 Difference]: Finished difference Result 478 states and 544 transitions. [2020-09-24 15:49:50,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:49:50,529 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2020-09-24 15:49:50,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:49:50,534 INFO L225 Difference]: With dead ends: 478 [2020-09-24 15:49:50,534 INFO L226 Difference]: Without dead ends: 371 [2020-09-24 15:49:50,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:49:50,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-09-24 15:49:50,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 312. [2020-09-24 15:49:50,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2020-09-24 15:49:50,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 336 transitions. [2020-09-24 15:49:50,581 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 336 transitions. Word has length 160 [2020-09-24 15:49:50,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:49:50,581 INFO L479 AbstractCegarLoop]: Abstraction has 312 states and 336 transitions. [2020-09-24 15:49:50,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:49:50,581 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 336 transitions. [2020-09-24 15:49:50,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-09-24 15:49:50,584 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:49:50,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:49:50,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:49:50,584 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:49:50,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:49:50,585 INFO L82 PathProgramCache]: Analyzing trace with hash 392099313, now seen corresponding path program 1 times [2020-09-24 15:49:50,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:49:50,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [488550470] [2020-09-24 15:49:50,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:49:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:50,673 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:49:50,673 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:50,673 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:50,673 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:50,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-24 15:49:50,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:50,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 15:49:50,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:50,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:49:50,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 15:49:50,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-24 15:49:50,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:50,988 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:49:50,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:49:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,028 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,028 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,028 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,029 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:49:51,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:49:51,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:51,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:51,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:49:51,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:51,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:49:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,092 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,092 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,092 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,092 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:51,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:49:51,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:51,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:51,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:51,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:51,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:49:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,099 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,099 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,099 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,100 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:51,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:49:51,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:51,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:51,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:51,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:51,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:49:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,107 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,107 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,108 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,108 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:51,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:49:51,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:51,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:51,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:49:51,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:51,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:49:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,114 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,115 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,115 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,115 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:51,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:51,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:51,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:51,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:49:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,141 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,141 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,141 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,141 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 15:49:51,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:49:51,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:51,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:51,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 15:49:51,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:51,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:49:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,157 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,158 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,158 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,158 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:49:51,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:51,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:51,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:51,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:51,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:51,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:49:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,167 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,167 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,167 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,167 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:49:51,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:51,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:51,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:51,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:51,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:51,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:49:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,173 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,173 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,174 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,174 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:51,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:51,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:51,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:51,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:51,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:51,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-24 15:49:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,187 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,187 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,187 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,188 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:51,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:49:51,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:49:51,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:51,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:49:51,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:51,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 15:49:51,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:51,220 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:51,220 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:51,221 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:51,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:51,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:51,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:51,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:51,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:51,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:51,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:49:51,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:51,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:51,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:49:51,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [488550470] [2020-09-24 15:49:51,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:49:51,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:49:51,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828081151] [2020-09-24 15:49:51,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:49:51,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:49:51,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:49:51,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:49:51,270 INFO L87 Difference]: Start difference. First operand 312 states and 336 transitions. Second operand 9 states. [2020-09-24 15:49:51,721 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:49:53,479 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:49:53,774 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:49:54,081 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:49:54,380 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:49:54,648 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:49:54,920 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:49:55,163 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:49:55,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:49:55,940 INFO L93 Difference]: Finished difference Result 723 states and 843 transitions. [2020-09-24 15:49:55,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 15:49:55,941 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 184 [2020-09-24 15:49:55,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:49:55,945 INFO L225 Difference]: With dead ends: 723 [2020-09-24 15:49:55,945 INFO L226 Difference]: Without dead ends: 521 [2020-09-24 15:49:55,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 15:49:55,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2020-09-24 15:49:56,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 455. [2020-09-24 15:49:56,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-09-24 15:49:56,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 500 transitions. [2020-09-24 15:49:56,019 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 500 transitions. Word has length 184 [2020-09-24 15:49:56,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:49:56,019 INFO L479 AbstractCegarLoop]: Abstraction has 455 states and 500 transitions. [2020-09-24 15:49:56,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:49:56,020 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 500 transitions. [2020-09-24 15:49:56,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-24 15:49:56,023 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:49:56,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:49:56,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:49:56,024 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:49:56,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:49:56,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1778992043, now seen corresponding path program 1 times [2020-09-24 15:49:56,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:49:56,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050421074] [2020-09-24 15:49:56,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:49:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:56,144 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:56,144 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:56,144 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:56,145 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:56,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-24 15:49:56,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:56,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:49:56,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:56,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:49:56,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 15:49:56,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-24 15:49:56,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:56,437 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:49:56,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:49:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:56,472 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:56,472 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:56,472 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:56,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:56,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:49:56,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:56,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:56,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:56,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:56,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:56,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 15:49:56,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:56,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:49:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:56,518 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:56,518 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:56,518 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:56,519 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:56,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:56,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:56,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:56,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:56,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:56,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:56,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:56,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:49:56,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:49:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:56,524 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:56,524 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:56,524 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:56,524 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:56,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:56,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:56,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:56,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:56,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:56,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:56,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:56,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:56,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:49:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:56,529 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:56,529 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:56,530 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:56,530 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:56,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:56,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:56,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:56,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:56,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:56,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:56,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:49:56,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:56,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:49:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:56,535 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:56,535 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:56,536 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:56,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:56,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:56,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:56,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:56,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:56,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:56,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:56,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:56,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:56,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 15:49:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:56,553 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:56,553 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:56,553 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:56,553 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:56,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:49:56,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:56,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:56,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:56,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:56,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:56,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:49:56,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:56,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:49:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:56,572 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:56,573 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:56,573 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:56,573 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:56,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 15:49:56,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:56,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:56,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:56,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:56,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:56,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:49:56,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:56,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:49:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:56,586 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:56,587 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:56,587 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:56,587 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:56,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:49:56,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:56,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:56,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:56,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:56,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:56,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 15:49:56,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:56,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:49:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:56,593 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:56,593 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:56,593 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:56,593 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:56,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:49:56,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:56,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:56,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:56,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:49:56,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:56,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:49:56,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:56,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:49:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:56,599 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:56,599 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:56,599 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:56,599 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:56,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:49:56,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:56,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:56,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:56,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:56,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:56,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:49:56,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:56,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 15:49:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:56,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:56,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:56,604 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:56,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:56,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:56,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:56,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:49:56,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:56,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:49:56,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:56,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:49:56,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:56,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 15:49:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:49:56,612 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:49:56,612 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:49:56,612 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:49:56,612 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:49:56,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:49:56,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:49:56,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:49:56,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:49:56,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:49:56,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:49:56,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:49:56,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:49:56,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:49:56,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2050421074] [2020-09-24 15:49:56,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:49:56,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:49:56,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614811922] [2020-09-24 15:49:56,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:49:56,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:49:56,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:49:56,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:49:56,683 INFO L87 Difference]: Start difference. First operand 455 states and 500 transitions. Second operand 10 states. [2020-09-24 15:49:57,169 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:49:58,565 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:49:58,835 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:49:59,140 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:49:59,419 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:49:59,725 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:00,021 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:50:00,357 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:00,670 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:50:01,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:50:01,476 INFO L93 Difference]: Finished difference Result 527 states and 597 transitions. [2020-09-24 15:50:01,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 15:50:01,477 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 189 [2020-09-24 15:50:01,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:50:01,481 INFO L225 Difference]: With dead ends: 527 [2020-09-24 15:50:01,481 INFO L226 Difference]: Without dead ends: 524 [2020-09-24 15:50:01,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 15:50:01,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-09-24 15:50:01,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 455. [2020-09-24 15:50:01,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-09-24 15:50:01,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 499 transitions. [2020-09-24 15:50:01,537 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 499 transitions. Word has length 189 [2020-09-24 15:50:01,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:50:01,538 INFO L479 AbstractCegarLoop]: Abstraction has 455 states and 499 transitions. [2020-09-24 15:50:01,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:50:01,538 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 499 transitions. [2020-09-24 15:50:01,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 15:50:01,541 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:50:01,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:50:01,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:50:01,542 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:50:01,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:50:01,542 INFO L82 PathProgramCache]: Analyzing trace with hash 656942880, now seen corresponding path program 1 times [2020-09-24 15:50:01,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:50:01,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111652104] [2020-09-24 15:50:01,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:50:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:01,599 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:01,600 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:01,600 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:01,600 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:01,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 15:50:01,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:01,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:50:01,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:01,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:50:01,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-09-24 15:50:01,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:50:01,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:01,869 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:50:01,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:50:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:01,879 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:01,879 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:01,879 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:01,879 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:01,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:50:01,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:01,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:01,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:01,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:01,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:01,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:01,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:01,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:50:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:01,913 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:01,914 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:01,914 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:01,914 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:01,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:01,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:01,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:01,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:01,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:01,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:01,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:01,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:01,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:50:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:01,918 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:01,918 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:01,918 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:01,919 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:01,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:01,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:01,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:01,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:01,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:01,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:01,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:01,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:01,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:50:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:01,922 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:01,923 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:01,923 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:01,923 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:01,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:01,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:01,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:01,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:01,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:01,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:01,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:01,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:01,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:50:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:01,927 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:01,927 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:01,928 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:01,928 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:01,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:01,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:01,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:01,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:01,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:01,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:01,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:01,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:01,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 15:50:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:01,942 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:01,942 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:01,942 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:01,942 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:01,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:50:01,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:01,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:01,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:01,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:01,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:01,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:01,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:01,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:50:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:01,958 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:01,958 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:01,958 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:01,958 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:01,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:50:01,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:01,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:50:01,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:01,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:50:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 15:50:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:50:01,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:01,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:50:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:01,998 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:01,998 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:01,999 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:01,999 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:01,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:50:01,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:01,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:50:02,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:02,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:50:02,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:02,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 15:50:02,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:02,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:50:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:02,046 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:02,046 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:02,046 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:02,046 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:02,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:50:02,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:02,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:02,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:02,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:02,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:02,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:02,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:02,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:50:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:02,052 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:02,052 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:02,052 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:02,053 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:02,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:50:02,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:02,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:02,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:02,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:02,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 15:50:02,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:02,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:02,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 15:50:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:02,058 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:02,058 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:02,058 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:02,058 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:02,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:02,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:02,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:50:02,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:02,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:02,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:50:02,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:02,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:02,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 15:50:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:02,062 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:02,062 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:02,063 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:02,063 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:02,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:02,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:02,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:50:02,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:02,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:02,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:50:02,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:02,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:02,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:50:02,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111652104] [2020-09-24 15:50:02,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:50:02,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:50:02,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393321447] [2020-09-24 15:50:02,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:50:02,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:50:02,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:50:02,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:50:02,108 INFO L87 Difference]: Start difference. First operand 455 states and 499 transitions. Second operand 10 states. [2020-09-24 15:50:03,372 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:03,673 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:50:03,976 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 15:50:04,266 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:50:04,588 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:50:04,863 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:50:05,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:50:05,854 INFO L93 Difference]: Finished difference Result 879 states and 1003 transitions. [2020-09-24 15:50:05,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 15:50:05,855 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 190 [2020-09-24 15:50:05,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:50:05,858 INFO L225 Difference]: With dead ends: 879 [2020-09-24 15:50:05,858 INFO L226 Difference]: Without dead ends: 534 [2020-09-24 15:50:05,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 15:50:05,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2020-09-24 15:50:05,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 471. [2020-09-24 15:50:05,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2020-09-24 15:50:05,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 515 transitions. [2020-09-24 15:50:05,942 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 515 transitions. Word has length 190 [2020-09-24 15:50:05,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:50:05,943 INFO L479 AbstractCegarLoop]: Abstraction has 471 states and 515 transitions. [2020-09-24 15:50:05,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:50:05,943 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 515 transitions. [2020-09-24 15:50:05,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 15:50:05,948 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:50:05,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:50:05,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:50:05,949 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:50:05,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:50:05,950 INFO L82 PathProgramCache]: Analyzing trace with hash -765297984, now seen corresponding path program 1 times [2020-09-24 15:50:05,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:50:05,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284163942] [2020-09-24 15:50:05,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:50:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:06,018 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:50:06,018 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -67 [2020-09-24 15:50:06,019 FATAL L256 erpolLogProxyWrapper]: Difference in width: 67 [2020-09-24 15:50:06,019 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:06,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 15:50:06,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:06,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:50:06,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:06,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:50:06,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-09-24 15:50:06,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:50:06,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:06,289 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:50:06,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:50:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:06,298 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:06,299 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:06,299 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:06,299 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:06,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:50:06,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:06,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:06,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:06,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:06,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:06,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:06,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:06,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:50:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:06,334 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:06,334 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:06,334 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:06,334 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:06,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:06,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:06,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:06,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:06,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:06,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:06,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:06,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:06,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:50:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:06,339 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:06,339 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:06,339 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:06,339 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:06,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:06,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:06,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:06,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:06,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:06,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:06,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:06,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:06,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:50:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:06,345 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:06,345 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:06,345 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:06,346 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:06,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:06,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:06,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:50:06,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:06,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:06,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:06,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:06,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:06,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:50:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:06,351 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:06,352 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:06,352 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:06,352 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:06,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:06,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:06,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:06,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:06,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:06,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:06,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:06,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:06,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 15:50:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:06,365 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:06,365 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:06,366 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:06,366 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:06,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:50:06,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:06,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:06,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:06,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:06,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:06,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:06,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:06,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:50:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:06,389 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:06,389 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:06,389 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:06,390 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:06,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:50:06,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:06,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:50:06,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:06,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:50:06,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:50:06,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:50:06,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:06,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:50:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:06,402 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:06,402 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:06,403 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:06,403 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:06,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:50:06,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:06,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:50:06,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:06,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:50:06,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:50:06,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:50:06,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:06,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:50:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:06,437 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:06,437 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:06,437 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:06,438 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:06,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:50:06,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:06,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:50:06,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:06,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:50:06,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:06,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:50:06,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:06,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:50:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:06,462 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:06,462 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:06,462 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:06,462 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:06,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:50:06,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:06,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:06,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:06,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:06,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 15:50:06,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:06,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:06,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 15:50:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:06,468 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:06,469 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:06,469 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:06,469 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:06,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:06,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:06,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:06,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:06,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:06,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:50:06,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:06,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:06,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 15:50:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:06,473 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:06,473 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:06,474 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:06,474 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:06,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:06,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:06,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:50:06,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:06,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:06,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:50:06,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:06,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:06,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:50:06,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284163942] [2020-09-24 15:50:06,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:50:06,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:50:06,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859626775] [2020-09-24 15:50:06,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:50:06,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:50:06,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:50:06,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:50:06,512 INFO L87 Difference]: Start difference. First operand 471 states and 515 transitions. Second operand 9 states. [2020-09-24 15:50:07,533 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:50:07,822 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:50:08,105 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:50:08,393 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:50:08,664 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:50:09,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:50:09,451 INFO L93 Difference]: Finished difference Result 823 states and 932 transitions. [2020-09-24 15:50:09,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 15:50:09,451 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-09-24 15:50:09,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:50:09,454 INFO L225 Difference]: With dead ends: 823 [2020-09-24 15:50:09,454 INFO L226 Difference]: Without dead ends: 462 [2020-09-24 15:50:09,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:50:09,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2020-09-24 15:50:09,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 406. [2020-09-24 15:50:09,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2020-09-24 15:50:09,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 435 transitions. [2020-09-24 15:50:09,507 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 435 transitions. Word has length 190 [2020-09-24 15:50:09,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:50:09,507 INFO L479 AbstractCegarLoop]: Abstraction has 406 states and 435 transitions. [2020-09-24 15:50:09,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:50:09,507 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 435 transitions. [2020-09-24 15:50:09,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 15:50:09,510 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:50:09,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:50:09,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:50:09,511 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:50:09,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:50:09,511 INFO L82 PathProgramCache]: Analyzing trace with hash -556949213, now seen corresponding path program 1 times [2020-09-24 15:50:09,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:50:09,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330278678] [2020-09-24 15:50:09,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:50:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:09,579 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:09,580 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:09,580 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:09,580 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:09,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 15:50:09,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:09,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 15:50:09,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:09,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:50:09,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-24 15:50:09,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-24 15:50:09,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:09,924 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:50:09,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:50:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:09,935 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:09,935 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:09,935 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:09,936 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:09,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:50:09,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:09,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:09,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:09,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:09,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:09,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:09,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:09,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:50:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:09,978 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:09,978 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:09,979 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:09,979 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:09,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:09,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:09,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:09,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:09,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:09,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:09,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:09,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:09,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:50:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:09,985 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:09,985 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:09,985 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:09,986 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:09,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:09,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:09,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:09,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:09,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:09,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:09,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:09,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:09,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:50:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:09,990 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:09,990 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:09,991 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:09,991 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:09,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:09,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:09,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:09,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:09,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:09,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:09,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:09,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:09,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:50:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:09,996 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:09,996 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:09,996 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:09,997 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:09,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:09,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:09,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:50:09,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:09,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:09,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:09,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:09,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:10,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 15:50:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:10,013 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:10,013 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:10,013 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:10,014 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:10,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:50:10,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:10,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:10,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:10,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:10,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:10,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:10,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:10,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:50:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:10,035 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:10,036 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:10,036 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:10,036 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:10,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:50:10,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:10,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:50:10,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:10,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:10,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:10,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 15:50:10,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:10,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:50:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:10,049 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:10,049 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:10,049 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:10,049 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:10,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:50:10,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:10,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:10,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:10,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:10,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:10,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:50:10,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:10,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:50:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:10,061 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:10,061 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:10,061 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:10,061 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:10,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:50:10,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:10,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:10,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:10,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:10,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:10,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:50:10,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:10,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:50:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:10,070 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:10,070 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:10,070 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:10,071 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:10,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:50:10,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:10,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:10,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:10,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:10,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:10,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:50:10,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:10,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 15:50:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:10,082 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:10,083 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:10,083 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:10,083 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:10,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:10,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:10,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:50:10,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:10,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:50:10,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:10,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:50:10,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:10,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 15:50:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:10,132 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:10,133 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:10,133 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:10,134 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:10,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:10,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:10,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:10,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:10,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:10,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:50:10,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:10,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:10,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:50:10,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330278678] [2020-09-24 15:50:10,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:50:10,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:50:10,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564303569] [2020-09-24 15:50:10,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:50:10,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:50:10,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:50:10,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:50:10,186 INFO L87 Difference]: Start difference. First operand 406 states and 435 transitions. Second operand 10 states. [2020-09-24 15:50:11,361 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:50:12,036 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:50:12,331 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 15:50:12,905 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-24 15:50:13,479 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 15:50:13,760 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:14,047 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:50:14,364 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:50:14,651 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:50:15,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:50:15,628 INFO L93 Difference]: Finished difference Result 791 states and 922 transitions. [2020-09-24 15:50:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 15:50:15,628 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 190 [2020-09-24 15:50:15,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:50:15,632 INFO L225 Difference]: With dead ends: 791 [2020-09-24 15:50:15,633 INFO L226 Difference]: Without dead ends: 573 [2020-09-24 15:50:15,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 15:50:15,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2020-09-24 15:50:15,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 505. [2020-09-24 15:50:15,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2020-09-24 15:50:15,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 559 transitions. [2020-09-24 15:50:15,698 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 559 transitions. Word has length 190 [2020-09-24 15:50:15,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:50:15,699 INFO L479 AbstractCegarLoop]: Abstraction has 505 states and 559 transitions. [2020-09-24 15:50:15,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:50:15,699 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 559 transitions. [2020-09-24 15:50:15,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-09-24 15:50:15,708 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:50:15,708 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:50:15,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:50:15,708 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:50:15,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:50:15,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1204398017, now seen corresponding path program 1 times [2020-09-24 15:50:15,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:50:15,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [403362780] [2020-09-24 15:50:15,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:50:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:15,799 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:15,800 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:15,800 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:15,800 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:15,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-09-24 15:50:15,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:15,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:50:15,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:15,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:50:15,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-24 15:50:15,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-24 15:50:15,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,133 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:50:16,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:50:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,144 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,144 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,144 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,145 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:50:16,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:50:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,182 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,183 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,183 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,183 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:16,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:50:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,187 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,188 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,188 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,188 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:16,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:50:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,192 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,193 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,193 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:16,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:50:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,198 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,198 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,198 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,198 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:16,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 15:50:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,223 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,224 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,224 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:50:16,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:50:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,248 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,248 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,248 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,249 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 15:50:16,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:16,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 15:50:16,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:16,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:50:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,286 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,286 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,286 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,287 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:50:16,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:16,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 15:50:16,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:16,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:50:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,305 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,305 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,306 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,352 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:50:16,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 15:50:16,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:16,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:50:16,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:50:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,374 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,375 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,375 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,376 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:50:16,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:50:16,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:16,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:50:16,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:16,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:50:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,393 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,394 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,394 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,394 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:50:16,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:16,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:50:16,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:16,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-24 15:50:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,403 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,404 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,404 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,404 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 15:50:16,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:50:16,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:16,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:50:16,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:16,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:50:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,411 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,411 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,411 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,412 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:16,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:16,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 15:50:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,426 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,427 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,427 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,427 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:50:16,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:50:16,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:50:16,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 15:50:16,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:50:16,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:16,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 15:50:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,476 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,477 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,477 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,477 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 15:50:16,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:50:16,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:50:16,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 15:50:16,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:50:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,492 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,492 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,492 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,492 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:50:16,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:16,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-24 15:50:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,500 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,500 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,500 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,501 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:16,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:50:16,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:50:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:50:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:50:16,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:50:16,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 15:50:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:50:16,540 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:50:16,541 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:50:16,541 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:50:16,542 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:50:16,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:50:16,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:50:16,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:50:16,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:50:16,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:50:16,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:50:16,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:50:16,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:50:16,626 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 27 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 15:50:16,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [403362780] [2020-09-24 15:50:16,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:50:16,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 15:50:16,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073121723] [2020-09-24 15:50:16,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 15:50:16,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:50:16,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 15:50:16,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-09-24 15:50:16,631 INFO L87 Difference]: Start difference. First operand 505 states and 559 transitions. Second operand 14 states. [2020-09-24 15:50:17,105 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:50:17,867 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:50:18,841 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:19,137 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:50:19,459 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:19,758 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:20,049 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:50:20,352 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:50:20,642 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:20,949 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:50:21,276 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:50:21,566 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:50:22,477 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:50:22,782 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:50:23,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:50:23,825 INFO L93 Difference]: Finished difference Result 1228 states and 1495 transitions. [2020-09-24 15:50:23,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-09-24 15:50:23,826 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 237 [2020-09-24 15:50:23,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:50:23,831 INFO L225 Difference]: With dead ends: 1228 [2020-09-24 15:50:23,832 INFO L226 Difference]: Without dead ends: 911 [2020-09-24 15:50:23,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=428, Invalid=1054, Unknown=0, NotChecked=0, Total=1482 [2020-09-24 15:50:23,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-09-24 15:50:23,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 648. [2020-09-24 15:50:23,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2020-09-24 15:50:23,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 728 transitions. [2020-09-24 15:50:23,915 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 728 transitions. Word has length 237 [2020-09-24 15:50:23,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:50:23,916 INFO L479 AbstractCegarLoop]: Abstraction has 648 states and 728 transitions. [2020-09-24 15:50:23,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 15:50:23,916 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 728 transitions. [2020-09-24 15:50:23,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-09-24 15:50:23,922 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:50:23,922 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:50:23,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 15:50:23,923 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:50:23,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:50:23,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1574385309, now seen corresponding path program 2 times [2020-09-24 15:50:23,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:50:23,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [105688516] [2020-09-24 15:50:23,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:50:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:50:24,041 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:50:24,041 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:50:24,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 15:50:24,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:50:24 BoogieIcfgContainer [2020-09-24 15:50:24,101 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:50:24,107 INFO L168 Benchmark]: Toolchain (without parser) took 45253.83 ms. Allocated memory was 138.9 MB in the beginning and 811.1 MB in the end (delta: 672.1 MB). Free memory was 101.3 MB in the beginning and 459.4 MB in the end (delta: -358.1 MB). Peak memory consumption was 314.0 MB. Max. memory is 7.1 GB. [2020-09-24 15:50:24,108 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 15:50:24,109 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.49 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 100.7 MB in the beginning and 170.8 MB in the end (delta: -70.1 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2020-09-24 15:50:24,110 INFO L168 Benchmark]: Boogie Preprocessor took 96.61 ms. Allocated memory is still 200.8 MB. Free memory was 170.8 MB in the beginning and 166.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-24 15:50:24,112 INFO L168 Benchmark]: RCFGBuilder took 1291.23 ms. Allocated memory was 200.8 MB in the beginning and 233.3 MB in the end (delta: 32.5 MB). Free memory was 166.6 MB in the beginning and 178.8 MB in the end (delta: -12.1 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. [2020-09-24 15:50:24,115 INFO L168 Benchmark]: TraceAbstraction took 43155.23 ms. Allocated memory was 233.3 MB in the beginning and 811.1 MB in the end (delta: 577.8 MB). Free memory was 178.8 MB in the beginning and 459.4 MB in the end (delta: -280.6 MB). Peak memory consumption was 297.2 MB. Max. memory is 7.1 GB. [2020-09-24 15:50:24,121 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 701.49 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 100.7 MB in the beginning and 170.8 MB in the end (delta: -70.1 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.61 ms. Allocated memory is still 200.8 MB. Free memory was 170.8 MB in the beginning and 166.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1291.23 ms. Allocated memory was 200.8 MB in the beginning and 233.3 MB in the end (delta: 32.5 MB). Free memory was 166.6 MB in the beginning and 178.8 MB in the end (delta: -12.1 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 43155.23 ms. Allocated memory was 233.3 MB in the beginning and 811.1 MB in the end (delta: 577.8 MB). Free memory was 178.8 MB in the beginning and 459.4 MB in the end (delta: -280.6 MB). Peak memory consumption was 297.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 869]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L615] int waterLevel = 1; [L616] int methaneLevelCritical = 0; [L712] int pumpRunning = 0; [L713] int systemActive = 1; [L487] int retValue_acc ; [L488] int tmp ; [L492] FCALL select_helpers() [L493] FCALL select_features() [L494] CALL, EXPR valid_product() [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L494] RET, EXPR valid_product() [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L498] FCALL setup() [L499] CALL runTest() [L478] CALL test() [L546] int splverifierCounter ; [L547] int tmp ; [L548] int tmp___0 ; [L549] int tmp___1 ; [L550] int tmp___2 ; [L553] splverifierCounter = 0 [L555] COND TRUE 1 [L557] COND TRUE splverifierCounter < 4 [L563] tmp = __VERIFIER_nondet_int() [L565] COND TRUE \read(tmp) [L567] CALL waterRise() [L633] COND TRUE waterLevel < 2 [L634] waterLevel = waterLevel + 1 [L567] RET waterRise() [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) [L598] CALL timeShift() [L720] COND FALSE !(\read(pumpRunning)) [L727] COND TRUE \read(systemActive) [L729] CALL processEnvironment() [L749] int tmp ; [L752] COND TRUE ! pumpRunning [L754] CALL, EXPR isHighWaterLevel() [L846] int retValue_acc ; [L847] int tmp ; [L848] int tmp___0 ; [L852] CALL, EXPR isHighWaterSensorDry() [L695] int retValue_acc ; [L698] COND FALSE !(waterLevel < 2) [L702] retValue_acc = 0 [L703] return (retValue_acc); [L852] RET, EXPR isHighWaterSensorDry() [L852] tmp = isHighWaterSensorDry() [L854] COND FALSE !(\read(tmp)) [L857] tmp___0 = 1 [L859] retValue_acc = tmp___0 [L860] return (retValue_acc); [L754] RET, EXPR isHighWaterLevel() [L754] tmp = isHighWaterLevel() [L756] COND TRUE \read(tmp) [L758] CALL activatePump() [L777] pumpRunning = 1 [L758] RET activatePump() [L729] RET processEnvironment() [L735] CALL __utac_acc__Specification4_spec__1() [L875] int tmp ; [L876] int tmp___0 ; [L880] CALL, EXPR getWaterLevel() [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); [L880] RET, EXPR getWaterLevel() [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) [L735] RET __utac_acc__Specification4_spec__1() [L598] RET timeShift() [L555] COND TRUE 1 [L557] COND TRUE splverifierCounter < 4 [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) [L598] CALL timeShift() [L720] COND TRUE \read(pumpRunning) [L722] CALL lowerWaterLevel() [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 [L722] RET lowerWaterLevel() [L727] COND TRUE \read(systemActive) [L729] CALL processEnvironment() [L749] int tmp ; [L752] COND FALSE !(! pumpRunning) [L767] FCALL processEnvironment__wrappee__base() [L729] RET processEnvironment() [L735] CALL __utac_acc__Specification4_spec__1() [L875] int tmp ; [L876] int tmp___0 ; [L880] CALL, EXPR getWaterLevel() [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); [L880] RET, EXPR getWaterLevel() [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) [L735] RET __utac_acc__Specification4_spec__1() [L598] RET timeShift() [L555] COND TRUE 1 [L557] COND TRUE splverifierCounter < 4 [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) [L598] CALL timeShift() [L720] COND TRUE \read(pumpRunning) [L722] CALL lowerWaterLevel() [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 [L722] RET lowerWaterLevel() [L727] COND TRUE \read(systemActive) [L729] CALL processEnvironment() [L749] int tmp ; [L752] COND FALSE !(! pumpRunning) [L767] FCALL processEnvironment__wrappee__base() [L729] RET processEnvironment() [L735] CALL __utac_acc__Specification4_spec__1() [L875] int tmp ; [L876] int tmp___0 ; [L880] CALL, EXPR getWaterLevel() [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); [L880] RET, EXPR getWaterLevel() [L880] tmp = getWaterLevel() [L882] COND TRUE tmp == 0 [L884] CALL, EXPR isPumpRunning() [L801] int retValue_acc ; [L804] retValue_acc = pumpRunning [L805] return (retValue_acc); [L884] RET, EXPR isPumpRunning() [L884] tmp___0 = isPumpRunning() [L886] COND TRUE \read(tmp___0) [L888] CALL __automaton_fail() [L869] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 606 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 43.0s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 35.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2196 SDtfs, 3624 SDslu, 3986 SDs, 0 SdLazy, 7813 SolverSat, 937 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 396 GetRequests, 250 SyntacticMatches, 7 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 18.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=648occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 747 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 2061 NumberOfCodeBlocks, 2061 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1767 ConstructedInterpolants, 0 QuantifiedInterpolants, 777568 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 31/35 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...