/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:17:28,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:17:28,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:17:28,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:17:28,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:17:28,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:17:28,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:17:28,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:17:28,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:17:28,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:17:28,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:17:28,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:17:28,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:17:28,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:17:28,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:17:28,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:17:28,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:17:28,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:17:28,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:17:28,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:17:28,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:17:28,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:17:28,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:17:28,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:17:28,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:17:28,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:17:28,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:17:28,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:17:28,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:17:28,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:17:28,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:17:28,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:17:28,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:17:28,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:17:28,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:17:28,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:17:28,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:17:28,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:17:28,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:17:28,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:17:28,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:17:28,327 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 20:17:28,372 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:17:28,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:17:28,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:17:28,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:17:28,375 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:17:28,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:17:28,375 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:17:28,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:17:28,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:17:28,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:17:28,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:17:28,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:17:28,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:17:28,378 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:17:28,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:17:28,378 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:17:28,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:17:28,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:17:28,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:17:28,379 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:17:28,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:17:28,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:17:28,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:17:28,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:17:28,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:17:28,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:17:28,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:17:28,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:17:28,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:17:28,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 20:17:28,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:17:28,827 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:17:28,831 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:17:28,833 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:17:28,833 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:17:28,834 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2020-09-24 20:17:28,925 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2029c68dd/98cecaa1f68b476aa1cc9126e0973e26/FLAG1d33bfdd0 [2020-09-24 20:17:29,553 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:17:29,556 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2020-09-24 20:17:29,578 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2029c68dd/98cecaa1f68b476aa1cc9126e0973e26/FLAG1d33bfdd0 [2020-09-24 20:17:29,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2029c68dd/98cecaa1f68b476aa1cc9126e0973e26 [2020-09-24 20:17:29,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:17:29,853 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:17:29,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:17:29,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:17:29,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:17:29,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:17:29" (1/1) ... [2020-09-24 20:17:29,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:29, skipping insertion in model container [2020-09-24 20:17:29,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:17:29" (1/1) ... [2020-09-24 20:17:29,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:17:29,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:17:30,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:17:30,345 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:17:30,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:17:30,577 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:17:30,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:30 WrapperNode [2020-09-24 20:17:30,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:17:30,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:17:30,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:17:30,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:17:30,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:30" (1/1) ... [2020-09-24 20:17:30,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:30" (1/1) ... [2020-09-24 20:17:30,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:30" (1/1) ... [2020-09-24 20:17:30,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:30" (1/1) ... [2020-09-24 20:17:30,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:30" (1/1) ... [2020-09-24 20:17:30,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:30" (1/1) ... [2020-09-24 20:17:30,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:30" (1/1) ... [2020-09-24 20:17:30,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:17:30,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:17:30,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:17:30,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:17:30,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:30" (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 20:17:30,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:17:30,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:17:30,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:17:30,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:17:30,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:17:30,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:17:30,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:17:30,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:17:30,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:17:30,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 20:17:30,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:17:30,795 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:17:30,795 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:17:30,796 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:17:30,796 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:17:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:17:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:17:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:17:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 20:17:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:17:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:17:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:17:30,799 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:17:30,799 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:17:30,799 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:17:30,800 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:17:30,800 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:17:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:17:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:17:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:17:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:17:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:17:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 20:17:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:17:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:17:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:17:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:17:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:17:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:17:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 20:17:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 20:17:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:17:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:17:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:17:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:17:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:17:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:17:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:17:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:17:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:17:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:17:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:17:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:17:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:17:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:17:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:17:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:17:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:17:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:17:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:17:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:17:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:17:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:17:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:17:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:17:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 20:17:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:17:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:17:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:17:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:17:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:17:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:17:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 20:17:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:17:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:17:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:17:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:17:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:17:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:17:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:17:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:17:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:17:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:17:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:17:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:17:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:17:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:17:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 20:17:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:17:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:17:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:17:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:17:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 20:17:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 20:17:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:17:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:17:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:17:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:17:32,103 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:17:32,103 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:17:32,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:17:32 BoogieIcfgContainer [2020-09-24 20:17:32,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:17:32,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:17:32,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:17:32,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:17:32,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:17:29" (1/3) ... [2020-09-24 20:17:32,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eab8368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:17:32, skipping insertion in model container [2020-09-24 20:17:32,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:30" (2/3) ... [2020-09-24 20:17:32,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eab8368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:17:32, skipping insertion in model container [2020-09-24 20:17:32,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:17:32" (3/3) ... [2020-09-24 20:17:32,123 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2020-09-24 20:17:32,137 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:17:32,149 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:17:32,175 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:17:32,211 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:17:32,211 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:17:32,211 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:17:32,211 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:17:32,211 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:17:32,212 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:17:32,212 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:17:32,212 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:17:32,243 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2020-09-24 20:17:32,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 20:17:32,263 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:17:32,265 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 20:17:32,266 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:17:32,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:17:32,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1259360700, now seen corresponding path program 1 times [2020-09-24 20:17:32,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:17:32,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [219090601] [2020-09-24 20:17:32,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:17:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:32,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:33,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:34,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:35,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:37,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:37,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 20:17:37,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:17:37,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-24 20:17:37,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:37,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:17:37,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 20:17:37,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 20:17:37,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 39 [2020-09-24 20:17:38,403 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:17:38,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:17:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:38,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:38,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:38,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:17:38,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:38,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-09-24 20:17:38,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:38,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:38,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:38,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 20:17:38,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:38,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:17:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:38,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:38,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:38,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:38,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:38,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:17:38,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:38,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:38,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:17:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:38,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:38,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:38,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:38,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:38,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:17:38,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:38,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:38,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:38,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:38,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:38,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:17:38,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:38,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:38,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:38,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:38,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:38,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:17:38,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:38,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:38,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:38,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:38,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:38,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:17:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:38,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:38,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:38,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:38,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:38,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:17:38,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:38,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:38,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:38,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:38,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:38,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:17:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:38,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:39,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:39,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:39,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:39,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 20:17:39,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:39,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:17:39,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:39,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:39,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:39,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 20:17:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:39,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:39,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:39,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:39,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:39,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:17:39,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:39,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:39,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:17:39,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:39,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:39,122 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 20:17:39,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [219090601] [2020-09-24 20:17:39,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:17:39,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:17:39,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83597739] [2020-09-24 20:17:39,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:17:39,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:17:39,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:17:39,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:17:39,165 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 8 states. [2020-09-24 20:17:39,855 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:17:40,756 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:41,096 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:17:41,523 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:41,974 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:17:42,266 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:17:42,591 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:42,926 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:45,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:17:45,269 INFO L93 Difference]: Finished difference Result 731 states and 884 transitions. [2020-09-24 20:17:45,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:17:45,281 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 20:17:45,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:17:45,313 INFO L225 Difference]: With dead ends: 731 [2020-09-24 20:17:45,313 INFO L226 Difference]: Without dead ends: 504 [2020-09-24 20:17:45,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:17:45,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-09-24 20:17:45,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 458. [2020-09-24 20:17:45,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-09-24 20:17:45,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 512 transitions. [2020-09-24 20:17:45,488 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 512 transitions. Word has length 142 [2020-09-24 20:17:45,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:17:45,489 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 512 transitions. [2020-09-24 20:17:45,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:17:45,489 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 512 transitions. [2020-09-24 20:17:45,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 20:17:45,496 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:17:45,496 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] [2020-09-24 20:17:45,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:17:45,497 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:17:45,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:17:45,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1330220680, now seen corresponding path program 1 times [2020-09-24 20:17:45,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:17:45,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1125557638] [2020-09-24 20:17:45,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:17:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:45,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:45,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:46,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:50,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:50,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 20:17:50,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:17:50,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-24 20:17:50,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:50,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:17:50,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 20:17:50,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-24 20:17:50,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:50,895 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:17:50,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:17:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:50,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:51,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:51,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:17:51,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:51,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-09-24 20:17:51,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:51,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:51,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:51,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:17:51,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:51,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:17:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:51,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:51,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:51,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:51,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:51,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:17:51,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:51,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:51,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:51,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:51,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:51,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:17:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:51,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:51,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:51,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:51,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:51,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:17:51,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:51,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:51,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:51,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:51,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:51,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:17:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:51,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:51,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:51,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:51,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:51,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:17:51,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:51,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:51,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:51,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:51,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:51,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:17:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:51,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:51,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:51,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:51,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:51,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:17:51,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:51,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:51,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:51,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:51,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:51,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 20:17:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:51,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:51,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:51,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:17:51,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:51,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:17:51,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:51,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:51,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:17:51,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:51,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:51,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 20:17:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:51,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:51,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:51,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:51,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:51,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:17:51,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:51,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:51,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:17:51,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:51,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:51,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 20:17:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:51,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:51,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:51,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:51,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:51,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:17:51,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:51,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:51,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:17:51,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:51,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:51,409 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 20:17:51,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1125557638] [2020-09-24 20:17:51,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:17:51,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 20:17:51,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548110510] [2020-09-24 20:17:51,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 20:17:51,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:17:51,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 20:17:51,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 20:17:51,413 INFO L87 Difference]: Start difference. First operand 458 states and 512 transitions. Second operand 5 states. [2020-09-24 20:17:51,873 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:17:54,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:17:54,053 INFO L93 Difference]: Finished difference Result 993 states and 1219 transitions. [2020-09-24 20:17:54,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 20:17:54,055 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 20:17:54,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:17:54,063 INFO L225 Difference]: With dead ends: 993 [2020-09-24 20:17:54,063 INFO L226 Difference]: Without dead ends: 645 [2020-09-24 20:17:54,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:17:54,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2020-09-24 20:17:54,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 590. [2020-09-24 20:17:54,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2020-09-24 20:17:54,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 686 transitions. [2020-09-24 20:17:54,162 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 686 transitions. Word has length 148 [2020-09-24 20:17:54,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:17:54,163 INFO L479 AbstractCegarLoop]: Abstraction has 590 states and 686 transitions. [2020-09-24 20:17:54,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 20:17:54,163 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 686 transitions. [2020-09-24 20:17:54,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 20:17:54,166 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:17:54,166 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] [2020-09-24 20:17:54,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:17:54,167 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:17:54,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:17:54,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1498555412, now seen corresponding path program 1 times [2020-09-24 20:17:54,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:17:54,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1111799203] [2020-09-24 20:17:54,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:17:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:54,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:54,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:55,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:56,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:59,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:59,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 20:17:59,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:17:59,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 20:17:59,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:59,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:17:59,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 20:17:59,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-24 20:17:59,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:59,672 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:17:59,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:17:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:59,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:59,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:59,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:17:59,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:59,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-24 20:17:59,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:59,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:59,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:59,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 20:17:59,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:59,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:17:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:59,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:59,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:59,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:59,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:59,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:17:59,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:59,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:59,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:59,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:59,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:59,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:17:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:59,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:59,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:59,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:59,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:59,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:17:59,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:59,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:59,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:59,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:59,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:59,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:17:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:59,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:00,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:00,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:00,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:00,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:18:00,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:00,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:18:00,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:00,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:18:00,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:00,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:18:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:00,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:00,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:00,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:18:00,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:00,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:18:00,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:00,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:18:00,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:18:00,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:00,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 20:18:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:00,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:00,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:00,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:18:00,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:00,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:18:00,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:00,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:18:00,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:18:00,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:18:00,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:00,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 20:18:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:00,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:00,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:00,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:18:00,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:00,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:18:00,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:00,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:18:00,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:00,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:18:00,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:00,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 20:18:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:00,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:00,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:00,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:00,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:00,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:18:00,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:00,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:18:00,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:00,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:18:00,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:00,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 20:18:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:00,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:00,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:00,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:00,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:00,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:00,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:00,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:00,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:18:00,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:00,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:00,211 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 20:18:00,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1111799203] [2020-09-24 20:18:00,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:18:00,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 20:18:00,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811101579] [2020-09-24 20:18:00,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 20:18:00,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:18:00,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 20:18:00,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:18:00,214 INFO L87 Difference]: Start difference. First operand 590 states and 686 transitions. Second operand 13 states. [2020-09-24 20:18:00,781 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:18:02,097 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-09-24 20:18:02,764 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 190 [2020-09-24 20:18:03,166 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:18:03,588 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:18:03,945 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:18:05,337 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:18:05,707 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-24 20:18:06,164 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:18:08,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:18:08,589 INFO L93 Difference]: Finished difference Result 1385 states and 1920 transitions. [2020-09-24 20:18:08,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 20:18:08,590 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-09-24 20:18:08,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:18:08,601 INFO L225 Difference]: With dead ends: 1385 [2020-09-24 20:18:08,601 INFO L226 Difference]: Without dead ends: 1096 [2020-09-24 20:18:08,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=195, Invalid=617, Unknown=0, NotChecked=0, Total=812 [2020-09-24 20:18:08,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2020-09-24 20:18:08,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 791. [2020-09-24 20:18:08,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-09-24 20:18:08,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 967 transitions. [2020-09-24 20:18:08,732 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 967 transitions. Word has length 161 [2020-09-24 20:18:08,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:18:08,733 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 967 transitions. [2020-09-24 20:18:08,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 20:18:08,734 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 967 transitions. [2020-09-24 20:18:08,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-09-24 20:18:08,739 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:18:08,739 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:18:08,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:18:08,740 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:18:08,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:18:08,740 INFO L82 PathProgramCache]: Analyzing trace with hash -619409206, now seen corresponding path program 1 times [2020-09-24 20:18:08,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:18:08,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350796363] [2020-09-24 20:18:08,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:18:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:08,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:08,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:09,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:09,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:09,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:12,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:12,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 303 [2020-09-24 20:18:12,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:18:12,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4053 [2020-09-24 20:18:12,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:12,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:18:12,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-24 20:18:12,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:18:12,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:13,274 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:18:13,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:18:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:13,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:13,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:13,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:18:13,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:13,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-24 20:18:13,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:13,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:13,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:13,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:13,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:13,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:18:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:13,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:13,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:13,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:18:13,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:13,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:18:13,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:13,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:13,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:18:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:13,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:13,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:13,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:18:13,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:13,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:13,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:13,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:13,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:13,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:13,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:13,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:18:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:13,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:13,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:13,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:13,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:13,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:18:13,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:13,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:13,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:13,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:13,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:13,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:18:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:13,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:13,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:13,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:18:13,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:13,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:18:13,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:13,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:13,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:13,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:13,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:13,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 20:18:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:13,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:13,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:13,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:18:13,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:13,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:18:13,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:13,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:13,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:13,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:13,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:13,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 20:18:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:13,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:13,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:13,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-24 20:18:13,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:13,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-24 20:18:13,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:13,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:18:13,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 20:18:13,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:18:13,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:13,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:18:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:13,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:13,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:13,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 20:18:13,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:13,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 20:18:13,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:13,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:18:13,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 20:18:13,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:18:13,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:13,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:18:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:13,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:13,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:13,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:18:13,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:13,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 20:18:13,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:13,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:18:13,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:18:13,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:18:13,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:13,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:18:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:13,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:13,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:13,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:18:13,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:13,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 20:18:13,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:13,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:18:13,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:18:13,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:18:13,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:13,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:18:13,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:13,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:13,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:13,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:18:13,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:13,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:18:13,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:13,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:18:13,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:13,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:18:13,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:14,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:18:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:14,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:14,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:14,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 20:18:14,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:14,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 20:18:14,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:14,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:14,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 20:18:14,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:14,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:14,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:18:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:14,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:14,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:14,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:18:14,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:14,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:14,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:14,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:14,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:14,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:14,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:14,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:18:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:14,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:14,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:14,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:14,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:14,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:14,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:14,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:14,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:14,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:14,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:14,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 20:18:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:14,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:14,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:14,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:18:14,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:14,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:14,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:14,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:14,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:14,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:14,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:14,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-24 20:18:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:14,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:14,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:14,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:18:14,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:14,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:18:14,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:14,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:14,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 20:18:14,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:14,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:14,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:18:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:14,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:14,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:14,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:14,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:14,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:14,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:14,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:14,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:14,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:14,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:14,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-24 20:18:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:14,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:14,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:14,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:18:14,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:14,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:18:14,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:14,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:14,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:18:14,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:14,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:14,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-24 20:18:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:14,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:14,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:14,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:14,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:14,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:14,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:14,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:14,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:18:14,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:14,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:14,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-24 20:18:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:14,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:14,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:14,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:14,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:14,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:14,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:14,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:14,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:18:14,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:14,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:14,253 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 20:18:14,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350796363] [2020-09-24 20:18:14,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:18:14,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 20:18:14,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828253137] [2020-09-24 20:18:14,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 20:18:14,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:18:14,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 20:18:14,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:18:14,256 INFO L87 Difference]: Start difference. First operand 791 states and 967 transitions. Second operand 11 states. [2020-09-24 20:18:15,542 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:18:15,866 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:18:16,207 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:18:16,525 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:18:16,825 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187