/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:03:10,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:03:10,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:03:10,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:03:10,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:03:10,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:03:10,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:03:10,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:03:10,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:03:10,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:03:10,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:03:10,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:03:10,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:03:10,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:03:10,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:03:10,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:03:10,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:03:10,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:03:10,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:03:10,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:03:10,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:03:10,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:03:10,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:03:10,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:03:10,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:03:10,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:03:10,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:03:10,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:03:10,295 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:03:10,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:03:10,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:03:10,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:03:10,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:03:10,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:03:10,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:03:10,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:03:10,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:03:10,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:03:10,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:03:10,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:03:10,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:03:10,305 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 19:03:10,330 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:03:10,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:03:10,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:03:10,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:03:10,332 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:03:10,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:03:10,333 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:03:10,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:03:10,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:03:10,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:03:10,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:03:10,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:03:10,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:03:10,334 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:03:10,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:03:10,335 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:03:10,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:03:10,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:03:10,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:03:10,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:03:10,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:03:10,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:03:10,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:03:10,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:03:10,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:03:10,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:03:10,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:03:10,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:03:10,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:03:10,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:03:10,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:03:10,812 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:03:10,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:03:10,819 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:03:10,821 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:03:10,822 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2020-09-24 19:03:10,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46779dbbe/3cc59e0119744d1cb94d789c9192d49e/FLAGb6f9e92d2 [2020-09-24 19:03:11,495 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:03:11,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2020-09-24 19:03:11,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46779dbbe/3cc59e0119744d1cb94d789c9192d49e/FLAGb6f9e92d2 [2020-09-24 19:03:11,777 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46779dbbe/3cc59e0119744d1cb94d789c9192d49e [2020-09-24 19:03:11,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:03:11,796 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:03:11,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:03:11,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:03:11,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:03:11,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:03:11" (1/1) ... [2020-09-24 19:03:11,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c86c800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:11, skipping insertion in model container [2020-09-24 19:03:11,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:03:11" (1/1) ... [2020-09-24 19:03:11,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:03:11,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:03:12,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:03:12,372 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:03:12,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:03:12,502 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:03:12,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:12 WrapperNode [2020-09-24 19:03:12,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:03:12,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:03:12,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:03:12,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:03:12,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:12" (1/1) ... [2020-09-24 19:03:12,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:12" (1/1) ... [2020-09-24 19:03:12,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:12" (1/1) ... [2020-09-24 19:03:12,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:12" (1/1) ... [2020-09-24 19:03:12,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:12" (1/1) ... [2020-09-24 19:03:12,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:12" (1/1) ... [2020-09-24 19:03:12,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:12" (1/1) ... [2020-09-24 19:03:12,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:03:12,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:03:12,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:03:12,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:03:12,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:12" (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 19:03:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:03:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:03:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:03:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:03:12,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:03:12,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:03:12,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:03:12,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:03:12,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:03:12,746 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:03:12,746 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:03:12,746 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:03:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:03:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:03:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:03:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:03:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:03:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:03:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:03:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:03:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 19:03:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:03:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:03:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:03:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:03:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:03:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:03:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 19:03:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:03:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 19:03:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:03:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:03:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:03:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:03:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:03:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:03:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:03:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:03:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:03:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:03:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:03:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:03:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:03:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:03:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:03:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:03:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:03:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:03:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:03:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:03:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:03:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:03:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:03:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:03:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:03:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:03:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:03:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:03:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:03:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:03:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:03:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:03:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:03:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:03:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:03:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:03:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 19:03:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:03:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:03:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:03:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:03:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:03:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:03:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:03:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 19:03:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:03:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:03:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:03:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 19:03:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:03:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:03:12,763 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:03:12,763 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:03:12,764 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:03:12,764 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:03:12,764 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:03:12,764 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:03:12,764 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:03:12,764 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:03:12,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:03:12,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:03:12,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:03:13,887 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:03:13,887 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:03:13,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:03:13 BoogieIcfgContainer [2020-09-24 19:03:13,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:03:13,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:03:13,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:03:13,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:03:13,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:03:11" (1/3) ... [2020-09-24 19:03:13,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b63dc75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:03:13, skipping insertion in model container [2020-09-24 19:03:13,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:12" (2/3) ... [2020-09-24 19:03:13,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b63dc75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:03:13, skipping insertion in model container [2020-09-24 19:03:13,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:03:13" (3/3) ... [2020-09-24 19:03:13,903 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product42.cil.c [2020-09-24 19:03:13,914 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:03:13,925 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:03:13,946 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:03:13,975 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:03:13,975 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:03:13,975 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:03:13,976 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:03:13,976 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:03:13,976 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:03:13,976 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:03:13,976 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:03:14,004 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states. [2020-09-24 19:03:14,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 19:03:14,021 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:14,023 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] [2020-09-24 19:03:14,023 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:14,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:14,031 INFO L82 PathProgramCache]: Analyzing trace with hash -2111431698, now seen corresponding path program 1 times [2020-09-24 19:03:14,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:14,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1313532147] [2020-09-24 19:03:14,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:14,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:14,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:15,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:15,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 19:03:15,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:15,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:03:15,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:15,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:15,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 19:03:15,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:15,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:03:15,773 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:15,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:15,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:15,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:15,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:15,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:15,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-24 19:03:15,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:15,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:15,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:15,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:15,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:16,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:16,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:16,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:16,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:16,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:16,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:16,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:16,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:16,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:16,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:16,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:16,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:16,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:16,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:16,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:16,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:16,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:16,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:16,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:16,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:16,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:16,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:16,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:16,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:16,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:16,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:16,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:16,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:16,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:16,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:16,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:16,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:16,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:16,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:16,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:16,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:16,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:16,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:16,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:16,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:16,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:16,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:16,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:16,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:16,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:03:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:16,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:16,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:16,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:16,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:16,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:16,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:16,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 41 [2020-09-24 19:03:16,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:03:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:16,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:16,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:16,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:16,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:16,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:16,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:16,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:16,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:16,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:16,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:16,154 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 19:03:16,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1313532147] [2020-09-24 19:03:16,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:16,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:03:16,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754882770] [2020-09-24 19:03:16,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:03:16,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:16,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:03:16,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:03:16,194 INFO L87 Difference]: Start difference. First operand 299 states. Second operand 3 states. [2020-09-24 19:03:17,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:17,446 INFO L93 Difference]: Finished difference Result 464 states and 551 transitions. [2020-09-24 19:03:17,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:03:17,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 19:03:17,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:17,466 INFO L225 Difference]: With dead ends: 464 [2020-09-24 19:03:17,467 INFO L226 Difference]: Without dead ends: 290 [2020-09-24 19:03:17,472 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 19:03:17,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-24 19:03:17,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 248. [2020-09-24 19:03:17,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-09-24 19:03:17,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 268 transitions. [2020-09-24 19:03:17,604 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 268 transitions. Word has length 142 [2020-09-24 19:03:17,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:17,605 INFO L479 AbstractCegarLoop]: Abstraction has 248 states and 268 transitions. [2020-09-24 19:03:17,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:03:17,606 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 268 transitions. [2020-09-24 19:03:17,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 19:03:17,610 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:17,611 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 19:03:17,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:03:17,611 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:17,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:17,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1885599248, now seen corresponding path program 1 times [2020-09-24 19:03:17,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:17,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381098113] [2020-09-24 19:03:17,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:17,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:17,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:18,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:18,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 19:03:18,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:18,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:03:18,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 19:03:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:03:18,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:19,024 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:19,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:19,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:19,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:19,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:19,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:19,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-24 19:03:19,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:19,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:19,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:19,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:19,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:19,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:19,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:19,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:19,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:19,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:19,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:19,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:19,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:19,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:19,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:19,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:19,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:19,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:19,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:19,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:19,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:19,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:19,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:19,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:19,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:19,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:19,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:19,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:19,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:19,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:19,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:19,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:19,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:19,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:19,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:19,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:19,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:19,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:19,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:19,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:19,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:19,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:19,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:19,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:19,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:19,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:19,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:03:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:19,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:19,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:19,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:19,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:19,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:19,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:19,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:19,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:19,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:19,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:19,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:03:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:19,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:19,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:19,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:19,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:19,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:19,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:19,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:19,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:19,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:19,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:19,272 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 19:03:19,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381098113] [2020-09-24 19:03:19,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:19,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:03:19,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50144414] [2020-09-24 19:03:19,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:03:19,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:19,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:03:19,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:03:19,279 INFO L87 Difference]: Start difference. First operand 248 states and 268 transitions. Second operand 4 states. [2020-09-24 19:03:19,906 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:20,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:20,823 INFO L93 Difference]: Finished difference Result 377 states and 422 transitions. [2020-09-24 19:03:20,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:03:20,824 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 19:03:20,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:20,831 INFO L225 Difference]: With dead ends: 377 [2020-09-24 19:03:20,831 INFO L226 Difference]: Without dead ends: 273 [2020-09-24 19:03:20,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:03:20,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-09-24 19:03:20,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 238. [2020-09-24 19:03:20,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-09-24 19:03:20,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 255 transitions. [2020-09-24 19:03:20,873 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 255 transitions. Word has length 143 [2020-09-24 19:03:20,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:20,873 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 255 transitions. [2020-09-24 19:03:20,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:03:20,874 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 255 transitions. [2020-09-24 19:03:20,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 19:03:20,876 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:20,877 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] [2020-09-24 19:03:20,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:03:20,877 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:20,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:20,878 INFO L82 PathProgramCache]: Analyzing trace with hash 2133556188, now seen corresponding path program 1 times [2020-09-24 19:03:20,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:20,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [976038994] [2020-09-24 19:03:20,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:20,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:21,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:21,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:21,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 19:03:21,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:21,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1019 [2020-09-24 19:03:21,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 19:03:21,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:03:21,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:22,299 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:22,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:22,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:22,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:22,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:22,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:22,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 19:03:22,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:22,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:22,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:22,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:22,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 70 [2020-09-24 19:03:22,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:22,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:22,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:22,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:22,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:22,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:22,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:22,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:22,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:22,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:22,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:22,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:22,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:22,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:22,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:22,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:22,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:22,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:22,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:22,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:22,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:22,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:22,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:22,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:22,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:22,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:22,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:22,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:22,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:22,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:22,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:22,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:22,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:22,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:22,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:22,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:22,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:22,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:22,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:22,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:22,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:22,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:22,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:22,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:22,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:03:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:22,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:22,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:22,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:22,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:22,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:22,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:22,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:22,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:22,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:03:22,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:22,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:03:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:22,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:22,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:22,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:22,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:22,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:22,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:22,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:22,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:22,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:22,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:22,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:03:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:22,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:22,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:22,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:22,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:22,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:22,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:22,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:22,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:22,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:22,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:22,643 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 19:03:22,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [976038994] [2020-09-24 19:03:22,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:22,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:03:22,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064214741] [2020-09-24 19:03:22,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:03:22,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:22,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:03:22,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:03:22,645 INFO L87 Difference]: Start difference. First operand 238 states and 255 transitions. Second operand 5 states. [2020-09-24 19:03:23,098 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:24,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:24,038 INFO L93 Difference]: Finished difference Result 423 states and 484 transitions. [2020-09-24 19:03:24,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:03:24,042 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 19:03:24,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:24,048 INFO L225 Difference]: With dead ends: 423 [2020-09-24 19:03:24,048 INFO L226 Difference]: Without dead ends: 295 [2020-09-24 19:03:24,050 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:03:24,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-24 19:03:24,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 238. [2020-09-24 19:03:24,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-09-24 19:03:24,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 254 transitions. [2020-09-24 19:03:24,117 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 254 transitions. Word has length 156 [2020-09-24 19:03:24,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:24,118 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 254 transitions. [2020-09-24 19:03:24,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:03:24,119 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 254 transitions. [2020-09-24 19:03:24,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-09-24 19:03:24,125 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:24,126 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] [2020-09-24 19:03:24,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:03:24,126 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:24,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:24,127 INFO L82 PathProgramCache]: Analyzing trace with hash -874630023, now seen corresponding path program 1 times [2020-09-24 19:03:24,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:24,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537388986] [2020-09-24 19:03:24,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:24,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:24,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:25,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:25,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 19:03:25,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:25,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:03:25,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:25,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:03:25,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-24 19:03:25,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:25,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:25,618 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:25,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:25,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:25,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:25,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:25,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:25,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-24 19:03:25,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:25,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:25,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:25,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:25,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:25,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:25,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:25,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:25,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:25,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:25,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:03:25,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:25,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:25,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:25,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:25,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:25,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:25,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:25,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:25,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:25,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:25,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:03:25,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:25,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:25,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:25,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:25,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:25,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:25,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:25,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:25,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:25,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:25,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:25,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:25,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:25,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:25,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:25,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:25,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:25,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:25,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:25,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:25,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:25,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:25,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:25,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:25,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:25,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:03:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:25,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:25,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:25,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:25,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:25,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:25,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:25,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:25,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:25,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:25,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:25,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:03:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:25,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:25,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:25,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:03:25,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:25,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:03:25,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:25,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:03:25,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:03:25,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:03:25,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:25,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:03:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:25,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:25,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:25,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:25,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:25,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:03:25,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:25,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:25,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:25,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:25,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:25,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 19:03:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:25,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:25,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:25,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:25,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:25,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:25,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:25,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:25,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:26,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:26,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:26,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 19:03:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:26,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:26,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:26,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:26,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:26,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:26,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:26,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:26,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:26,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:26,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:26,036 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 19:03:26,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537388986] [2020-09-24 19:03:26,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:26,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 19:03:26,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855632802] [2020-09-24 19:03:26,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:03:26,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:26,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:03:26,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:03:26,039 INFO L87 Difference]: Start difference. First operand 238 states and 254 transitions. Second operand 8 states. [2020-09-24 19:03:26,558 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:28,152 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:03:29,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:29,116 INFO L93 Difference]: Finished difference Result 594 states and 701 transitions. [2020-09-24 19:03:29,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 19:03:29,116 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 164 [2020-09-24 19:03:29,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:29,121 INFO L225 Difference]: With dead ends: 594 [2020-09-24 19:03:29,122 INFO L226 Difference]: Without dead ends: 466 [2020-09-24 19:03:29,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:03:29,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-09-24 19:03:29,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 339. [2020-09-24 19:03:29,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-09-24 19:03:29,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 365 transitions. [2020-09-24 19:03:29,198 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 365 transitions. Word has length 164 [2020-09-24 19:03:29,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:29,199 INFO L479 AbstractCegarLoop]: Abstraction has 339 states and 365 transitions. [2020-09-24 19:03:29,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:03:29,199 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 365 transitions. [2020-09-24 19:03:29,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-24 19:03:29,202 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:29,202 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] [2020-09-24 19:03:29,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:03:29,203 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:29,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:29,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1983899201, now seen corresponding path program 1 times [2020-09-24 19:03:29,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:29,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2008848950] [2020-09-24 19:03:29,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:29,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:29,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-09-24 19:03:30,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:30,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1045 [2020-09-24 19:03:30,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:03:30,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-24 19:03:30,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:03:30,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:30,631 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:30,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:30,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:30,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 19:03:30,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:30,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:30,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:30,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:30,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:30,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:30,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:03:30,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:30,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:30,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:30,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:30,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:30,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:03:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:30,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:30,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:03:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:31,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:31,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:03:31,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:31,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-24 19:03:31,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:31,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:03:31,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:03:31,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:03:31,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:31,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:03:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:31,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:31,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:31,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:03:31,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:31,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 19:03:31,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:31,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:03:31,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:03:31,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:03:31,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:31,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:03:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:31,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:31,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:31,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:03:31,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:31,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:03:31,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:31,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:03:31,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:31,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:31,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:31,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:03:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:31,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:31,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:31,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:31,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:31,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:31,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:31,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:31,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 19:03:31,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:31,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:31,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-24 19:03:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:31,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:31,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:31,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:31,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:31,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:31,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:31,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:31,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:31,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-24 19:03:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:31,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:31,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:31,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:31,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:31,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:31,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:31,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:31,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:31,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:31,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:31,239 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 19:03:31,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2008848950] [2020-09-24 19:03:31,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:31,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:03:31,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772563728] [2020-09-24 19:03:31,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:03:31,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:31,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:03:31,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:03:31,243 INFO L87 Difference]: Start difference. First operand 339 states and 365 transitions. Second operand 9 states. [2020-09-24 19:03:32,398 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:03:32,709 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:03:33,024 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:03:33,280 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:03:33,520 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:03:34,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:34,786 INFO L93 Difference]: Finished difference Result 699 states and 823 transitions. [2020-09-24 19:03:34,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:03:34,789 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 188 [2020-09-24 19:03:34,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:34,793 INFO L225 Difference]: With dead ends: 699 [2020-09-24 19:03:34,793 INFO L226 Difference]: Without dead ends: 470 [2020-09-24 19:03:34,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:03:34,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-09-24 19:03:34,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 345. [2020-09-24 19:03:34,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-09-24 19:03:34,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 371 transitions. [2020-09-24 19:03:34,843 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 371 transitions. Word has length 188 [2020-09-24 19:03:34,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:34,844 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 371 transitions. [2020-09-24 19:03:34,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:03:34,844 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 371 transitions. [2020-09-24 19:03:34,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-24 19:03:34,846 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:34,847 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] [2020-09-24 19:03:34,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:03:34,847 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:34,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:34,847 INFO L82 PathProgramCache]: Analyzing trace with hash 694378847, now seen corresponding path program 1 times [2020-09-24 19:03:34,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:34,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586500789] [2020-09-24 19:03:34,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:34,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:35,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:35,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:35,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-09-24 19:03:35,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:35,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-09-24 19:03:35,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:35,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:03:35,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-24 19:03:35,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-24 19:03:35,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:36,317 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:36,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:36,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 19:03:36,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:36,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:36,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:36,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:36,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:36,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:36,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:36,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:36,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:36,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:36,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:36,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:36,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:36,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:36,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:36,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:36,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:36,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:36,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:36,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:36,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:36,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:36,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:36,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:03:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:36,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:36,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:36,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:36,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:36,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:03:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:03:36,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:36,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 19:03:36,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:36,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:03:36,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:36,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:03:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:03:36,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:03:36,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:36,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 19:03:36,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:36,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:03:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:03:36,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:03:36,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:36,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:36,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:36,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:03:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:36,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:36,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:36,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:36,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:36,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-24 19:03:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:36,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:03:36,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:36,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:36,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:36,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-24 19:03:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:36,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:03:36,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:03:36,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:36,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:36,859 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 19:03:36,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586500789] [2020-09-24 19:03:36,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:36,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:03:36,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733280618] [2020-09-24 19:03:36,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:03:36,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:36,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:03:36,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:03:36,864 INFO L87 Difference]: Start difference. First operand 345 states and 371 transitions. Second operand 10 states. [2020-09-24 19:03:37,357 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:39,007 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:39,354 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:03:39,712 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:03:40,655 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:03:41,078 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:03:41,454 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:03:41,811 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:03:42,141 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:03:42,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:42,391 INFO L93 Difference]: Finished difference Result 475 states and 555 transitions. [2020-09-24 19:03:42,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 19:03:42,391 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 188 [2020-09-24 19:03:42,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:42,395 INFO L225 Difference]: With dead ends: 475 [2020-09-24 19:03:42,395 INFO L226 Difference]: Without dead ends: 472 [2020-09-24 19:03:42,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 19:03:42,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2020-09-24 19:03:42,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 345. [2020-09-24 19:03:42,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-09-24 19:03:42,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 370 transitions. [2020-09-24 19:03:42,472 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 370 transitions. Word has length 188 [2020-09-24 19:03:42,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:42,472 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 370 transitions. [2020-09-24 19:03:42,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:03:42,473 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 370 transitions. [2020-09-24 19:03:42,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-24 19:03:42,476 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:42,476 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 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 19:03:42,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:03:42,477 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:42,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:42,477 INFO L82 PathProgramCache]: Analyzing trace with hash -804774987, now seen corresponding path program 1 times [2020-09-24 19:03:42,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:42,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1388564939] [2020-09-24 19:03:42,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:42,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:43,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:43,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:43,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:43,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-09-24 19:03:43,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:03:43,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-24 19:03:43,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:43,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:03:43,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-09-24 19:03:43,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:03:43,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:43,866 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:43,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:43,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:44,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-24 19:03:44,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:44,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:44,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:44,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 19:03:44,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:44,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:44,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:44,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:44,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:44,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:03:44,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:44,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:03:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:44,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:44,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:44,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:03:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:03:44,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 19:03:44,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:03:44,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:03:44,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:03:44,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:03:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:03:44,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 19:03:44,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:03:44,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:03:44,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:03:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:03:44,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:44,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:03:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:03:44,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:03:44,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:03:44,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:03:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:03:44,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:44,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:03:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:44,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:44,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:03:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:44,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:44,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:44,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 19:03:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:44,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:44,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:44,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 19:03:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:44,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:44,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:44,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,583 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:03:44,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1388564939] [2020-09-24 19:03:44,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:44,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:03:44,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330010631] [2020-09-24 19:03:44,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:03:44,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:44,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:03:44,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:03:44,586 INFO L87 Difference]: Start difference. First operand 345 states and 370 transitions. Second operand 10 states. [2020-09-24 19:03:45,787 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:46,089 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:03:46,395 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:03:46,707 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:47,036 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:03:47,334 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:48,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:48,437 INFO L93 Difference]: Finished difference Result 711 states and 832 transitions. [2020-09-24 19:03:48,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 19:03:48,438 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 211 [2020-09-24 19:03:48,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:48,444 INFO L225 Difference]: With dead ends: 711 [2020-09-24 19:03:48,444 INFO L226 Difference]: Without dead ends: 476 [2020-09-24 19:03:48,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 19:03:48,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-24 19:03:48,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 353. [2020-09-24 19:03:48,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-09-24 19:03:48,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 378 transitions. [2020-09-24 19:03:48,503 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 378 transitions. Word has length 211 [2020-09-24 19:03:48,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:48,504 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 378 transitions. [2020-09-24 19:03:48,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:03:48,504 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 378 transitions. [2020-09-24 19:03:48,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-24 19:03:48,507 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:48,507 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 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 19:03:48,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:03:48,508 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:48,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:48,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1886723720, now seen corresponding path program 1 times [2020-09-24 19:03:48,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:48,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434617928] [2020-09-24 19:03:48,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:48,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:49,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:49,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:49,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-09-24 19:03:49,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:49,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1007 [2020-09-24 19:03:49,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:49,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:03:49,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 19:03:49,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-24 19:03:49,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:49,863 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:49,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:49,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:50,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-09-24 19:03:50,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 19:03:50,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:50,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:50,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:50,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:50,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:50,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:50,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:50,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:03:50,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:50,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:50,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:50,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:50,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:50,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:03:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:50,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:03:50,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:03:50,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:03:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:03:50,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 19:03:50,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 19:03:50,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 19:03:50,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:03:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:03:50,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:03:50,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:03:50,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:03:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:03:50,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:03:50,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:03:50,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:03:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:03:50,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 19:03:50,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 19:03:50,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:03:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:03:50,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:50,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:50,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:50,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:03:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:50,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:50,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:50,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:50,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:03:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:50,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:50,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:50,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:50,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 19:03:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:50,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:50,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:50,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:50,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:50,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 19:03:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:50,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:50,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:50,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:50,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:50,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,555 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:03:50,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434617928] [2020-09-24 19:03:50,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:50,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:03:50,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472437060] [2020-09-24 19:03:50,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:03:50,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:50,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:03:50,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:03:50,559 INFO L87 Difference]: Start difference. First operand 353 states and 378 transitions. Second operand 7 states. [2020-09-24 19:03:51,126 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:51,728 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:54,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:54,180 INFO L93 Difference]: Finished difference Result 1000 states and 1198 transitions. [2020-09-24 19:03:54,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 19:03:54,180 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 211 [2020-09-24 19:03:54,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:54,186 INFO L225 Difference]: With dead ends: 1000 [2020-09-24 19:03:54,186 INFO L226 Difference]: Without dead ends: 757 [2020-09-24 19:03:54,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-24 19:03:54,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2020-09-24 19:03:54,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 577. [2020-09-24 19:03:54,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2020-09-24 19:03:54,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 636 transitions. [2020-09-24 19:03:54,273 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 636 transitions. Word has length 211 [2020-09-24 19:03:54,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:54,273 INFO L479 AbstractCegarLoop]: Abstraction has 577 states and 636 transitions. [2020-09-24 19:03:54,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:03:54,273 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 636 transitions. [2020-09-24 19:03:54,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-24 19:03:54,278 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:54,278 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:03:54,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:03:54,279 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:54,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:54,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1303624664, now seen corresponding path program 1 times [2020-09-24 19:03:54,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:54,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782309586] [2020-09-24 19:03:54,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:54,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:54,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:55,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:55,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-09-24 19:03:55,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:55,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1030 [2020-09-24 19:03:55,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:03:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 19:03:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-09-24 19:03:55,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:55,699 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:55,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:55,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:55,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:55,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:55,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:55,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-24 19:03:55,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:55,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:55,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:55,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 19:03:55,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:55,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:55,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:55,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:55,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:55,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:55,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:55,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:55,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:55,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:55,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:55,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:55,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:55,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:55,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:55,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:55,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:55,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:55,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:55,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:56,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:56,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:03:56,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:56,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:56,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:56,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:56,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:56,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:56,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:56,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:56,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:03:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:03:56,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:03:56,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:56,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:03:56,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:56,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:03:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:56,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:56,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:56,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:03:56,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:56,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:03:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:03:56,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:56,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-24 19:03:56,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:56,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 19:03:56,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:56,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:03:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:03:56,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:03:56,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:56,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:56,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:56,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:03:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:03:56,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:56,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:56,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:56,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:56,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:03:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:03:56,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:03:56,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:56,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:56,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:56,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:03:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:03:56,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:56,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:56,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:56,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:56,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:03:56,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:56,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:03:56,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:56,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:56,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:56,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:03:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:56,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:56,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:56,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:56,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:56,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 19:03:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:56,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:56,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:03:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:56,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:56,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 19:03:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:56,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:03:56,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:56,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:56,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:56,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:56,530 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 19:03:56,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782309586] [2020-09-24 19:03:56,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:56,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:03:56,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937359981] [2020-09-24 19:03:56,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:03:56,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:56,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:03:56,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:03:56,534 INFO L87 Difference]: Start difference. First operand 577 states and 636 transitions. Second operand 11 states. [2020-09-24 19:03:57,100 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:58,642 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:03:58,944 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:03:59,271 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:03:59,583 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:59,897 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:04:00,204 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:04:00,515 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:04:00,999 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187