/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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:32:25,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:32:25,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:32:25,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:32:25,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:32:25,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:32:25,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:32:25,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:32:25,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:32:25,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:32:25,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:32:25,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:32:25,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:32:25,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:32:25,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:32:25,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:32:25,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:32:25,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:32:25,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:32:25,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:32:25,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:32:25,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:32:25,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:32:25,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:32:25,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:32:25,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:32:25,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:32:25,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:32:25,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:32:25,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:32:25,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:32:25,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:32:25,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:32:25,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:32:25,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:32:25,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:32:25,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:32:25,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:32:25,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:32:25,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:32:25,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:32:25,281 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 22:32:25,329 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:32:25,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:32:25,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:32:25,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:32:25,335 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:32:25,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:32:25,335 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:32:25,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:32:25,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:32:25,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:32:25,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:32:25,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:32:25,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:32:25,338 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:32:25,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:32:25,339 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:32:25,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:32:25,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:32:25,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:32:25,339 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:32:25,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:32:25,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:32:25,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:32:25,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:32:25,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:32:25,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:32:25,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:32:25,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:32:25,341 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:32:25,341 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:32:25,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:32:25,808 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:32:25,813 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:32:25,815 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:32:25,816 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:32:25,817 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product47.cil.c [2020-09-24 22:32:25,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/322523efa/c444a02e637441e9b15cf192f6bfe586/FLAG5e72f4355 [2020-09-24 22:32:26,543 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:32:26,544 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product47.cil.c [2020-09-24 22:32:26,559 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/322523efa/c444a02e637441e9b15cf192f6bfe586/FLAG5e72f4355 [2020-09-24 22:32:26,836 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/322523efa/c444a02e637441e9b15cf192f6bfe586 [2020-09-24 22:32:26,851 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:32:26,856 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:32:26,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:32:26,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:32:26,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:32:26,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:32:26" (1/1) ... [2020-09-24 22:32:26,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e1e1390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:26, skipping insertion in model container [2020-09-24 22:32:26,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:32:26" (1/1) ... [2020-09-24 22:32:26,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:32:26,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:32:27,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:32:27,479 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:32:27,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:32:27,620 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:32:27,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:27 WrapperNode [2020-09-24 22:32:27,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:32:27,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:32:27,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:32:27,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:32:27,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:27" (1/1) ... [2020-09-24 22:32:27,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:27" (1/1) ... [2020-09-24 22:32:27,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:27" (1/1) ... [2020-09-24 22:32:27,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:27" (1/1) ... [2020-09-24 22:32:27,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:27" (1/1) ... [2020-09-24 22:32:27,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:27" (1/1) ... [2020-09-24 22:32:27,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:27" (1/1) ... [2020-09-24 22:32:27,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:32:27,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:32:27,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:32:27,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:32:27,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:27" (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 22:32:27,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:32:27,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:32:27,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:32:27,814 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:32:27,814 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:32:27,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:32:27,815 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:32:27,815 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:32:27,815 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:32:27,815 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:32:27,815 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:32:27,816 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 22:32:27,816 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:32:27,816 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 22:32:27,816 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:32:27,817 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:32:27,817 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:32:27,817 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:32:27,817 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:32:27,817 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:32:27,818 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 22:32:27,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:32:27,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:32:27,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:32:27,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:32:27,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:32:27,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:32:27,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 22:32:27,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:32:27,819 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:32:27,819 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:32:27,820 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:32:27,820 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:32:27,820 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:32:27,820 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:32:27,820 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:32:27,820 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:32:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:32:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:32:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:32:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:32:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:32:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:32:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:32:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:32:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:32:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:32:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:32:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:32:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:32:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:32:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:32:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:32:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:32:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:32:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:32:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 22:32:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:32:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:32:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:32:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:32:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:32:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:32:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:32:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 22:32:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:32:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:32:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:32:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 22:32:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:32:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 22:32:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:32:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:32:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:32:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:32:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:32:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:32:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:32:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:32:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:32:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:32:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:32:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:32:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:32:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:32:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:32:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:32:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:32:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:32:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:32:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:32:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:32:27,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:32:27,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:32:29,031 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:32:29,031 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:32:29,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:32:29 BoogieIcfgContainer [2020-09-24 22:32:29,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:32:29,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:32:29,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:32:29,044 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:32:29,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:32:26" (1/3) ... [2020-09-24 22:32:29,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f9fe68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:32:29, skipping insertion in model container [2020-09-24 22:32:29,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:32:27" (2/3) ... [2020-09-24 22:32:29,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f9fe68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:32:29, skipping insertion in model container [2020-09-24 22:32:29,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:32:29" (3/3) ... [2020-09-24 22:32:29,049 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product47.cil.c [2020-09-24 22:32:29,061 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:32:29,074 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:32:29,097 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:32:29,132 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:32:29,132 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:32:29,133 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:32:29,133 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:32:29,133 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:32:29,133 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:32:29,133 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:32:29,133 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:32:29,164 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states. [2020-09-24 22:32:29,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 22:32:29,183 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:32:29,184 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 22:32:29,185 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:32:29,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:32:29,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1304799548, now seen corresponding path program 1 times [2020-09-24 22:32:29,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:32:29,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898744872] [2020-09-24 22:32:29,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:32:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:29,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:29,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:31,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:32,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:34,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:34,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:34,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 22:32:34,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 22:32:34,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-09-24 22:32:34,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:34,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:32:34,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-24 22:32:34,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:32:34,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 22:32:35,194 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:32:35,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:32:35,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:35,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:35,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:35,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:32:35,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:35,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 22:32:35,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:35,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:35,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:35,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:35,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:35,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:32:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:35,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:35,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:35,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:35,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:35,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:35,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:35,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:35,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:35,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:35,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:35,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:32:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:35,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:35,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:35,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:35,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:35,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:35,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:35,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:35,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:35,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:35,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:35,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:32:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:35,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:35,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:35,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:35,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:35,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:32:35,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:35,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:35,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:35,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:35,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:35,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:32:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:35,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:35,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:35,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:35,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:35,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:32:35,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:35,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:35,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:35,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:35,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:35,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:32:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:35,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:35,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:35,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:35,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:35,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:32:35,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:35,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:32:35,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:35,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:32:35,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:35,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 22:32:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:35,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:35,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:35,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:35,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:35,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 22:32:35,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:35,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:32:35,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:35,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:32:35,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:35,622 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 22:32:35,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1898744872] [2020-09-24 22:32:35,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:32:35,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:32:35,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143380290] [2020-09-24 22:32:35,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:32:35,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:32:35,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:32:35,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:32:35,661 INFO L87 Difference]: Start difference. First operand 321 states. Second operand 8 states. [2020-09-24 22:32:36,283 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:32:37,684 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:37,977 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:32:38,282 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:38,639 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:32:38,975 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:39,927 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:32:40,239 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:32:40,626 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:32:41,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:32:41,974 INFO L93 Difference]: Finished difference Result 637 states and 793 transitions. [2020-09-24 22:32:41,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:32:41,976 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 22:32:41,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:32:42,003 INFO L225 Difference]: With dead ends: 637 [2020-09-24 22:32:42,003 INFO L226 Difference]: Without dead ends: 427 [2020-09-24 22:32:42,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:32:42,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-09-24 22:32:42,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 383. [2020-09-24 22:32:42,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-09-24 22:32:42,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 438 transitions. [2020-09-24 22:32:42,157 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 438 transitions. Word has length 142 [2020-09-24 22:32:42,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:32:42,158 INFO L479 AbstractCegarLoop]: Abstraction has 383 states and 438 transitions. [2020-09-24 22:32:42,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:32:42,159 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 438 transitions. [2020-09-24 22:32:42,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 22:32:42,164 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:32:42,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:32:42,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:32:42,165 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:32:42,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:32:42,166 INFO L82 PathProgramCache]: Analyzing trace with hash 704990186, now seen corresponding path program 1 times [2020-09-24 22:32:42,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:32:42,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973323251] [2020-09-24 22:32:42,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:32:42,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:42,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:42,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:47,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:47,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 22:32:47,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:32:47,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-24 22:32:47,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:47,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:32:47,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 22:32:47,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:32:47,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:47,541 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:32:47,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:32:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:47,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:47,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:47,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:32:47,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:47,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 22:32:47,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:47,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:47,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:47,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:47,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:47,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:32:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:47,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:47,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:47,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:47,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:47,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:47,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:47,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:47,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:47,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:47,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:47,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:32:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:47,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:47,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:47,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:47,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:47,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:47,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:47,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:47,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:47,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:47,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:47,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:32:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:47,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:47,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:47,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:47,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:47,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:32:47,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:47,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:47,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:47,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:47,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:47,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:32:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:47,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:47,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:47,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:47,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:47,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:47,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:47,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:47,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:47,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:47,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:47,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 22:32:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:47,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:47,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:47,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 22:32:47,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:47,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 22:32:47,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:47,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:32:47,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 22:32:47,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:32:47,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:47,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:32:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:47,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:47,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:47,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 22:32:47,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:47,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 22:32:47,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:47,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:32:47,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:32:47,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:32:47,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:48,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:32:48,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:48,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:48,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:48,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:32:48,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:48,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 22:32:48,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:48,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:32:48,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:48,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:32:48,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:48,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:32:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:48,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:48,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:48,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:32:48,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:48,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:32:48,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:48,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:48,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:48,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:48,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:48,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:32:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:48,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:48,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:48,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 22:32:48,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:48,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:32:48,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:48,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:48,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 22:32:48,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:48,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:48,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:32:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:48,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:48,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:48,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 22:32:48,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:48,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:48,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:48,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:48,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:48,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:48,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:48,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:32:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:48,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:48,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:48,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:48,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:48,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:48,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:48,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:48,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:48,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:48,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:48,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 22:32:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:48,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:48,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:48,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:32:48,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:48,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:32:48,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:48,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:48,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:48,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:48,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:32:48,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 22:32:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:48,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:48,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:48,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:48,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:48,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:48,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:48,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:48,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:32:48,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:48,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:48,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 22:32:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:48,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:48,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:48,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:48,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:48,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:48,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:48,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:48,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:32:48,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:48,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:48,282 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 22:32:48,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973323251] [2020-09-24 22:32:48,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:32:48,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:32:48,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685945040] [2020-09-24 22:32:48,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:32:48,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:32:48,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:32:48,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:32:48,287 INFO L87 Difference]: Start difference. First operand 383 states and 438 transitions. Second operand 9 states. [2020-09-24 22:32:49,725 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:32:50,053 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:32:50,368 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:32:50,675 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:32:50,958 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:32:51,245 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:32:52,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:32:52,414 INFO L93 Difference]: Finished difference Result 749 states and 944 transitions. [2020-09-24 22:32:52,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:32:52,415 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 212 [2020-09-24 22:32:52,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:32:52,422 INFO L225 Difference]: With dead ends: 749 [2020-09-24 22:32:52,422 INFO L226 Difference]: Without dead ends: 476 [2020-09-24 22:32:52,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:32:52,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-24 22:32:52,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 394. [2020-09-24 22:32:52,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-24 22:32:52,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 449 transitions. [2020-09-24 22:32:52,525 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 449 transitions. Word has length 212 [2020-09-24 22:32:52,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:32:52,527 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 449 transitions. [2020-09-24 22:32:52,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:32:52,528 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 449 transitions. [2020-09-24 22:32:52,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 22:32:52,531 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:32:52,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:32:52,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:32:52,531 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:32:52,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:32:52,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1905868918, now seen corresponding path program 1 times [2020-09-24 22:32:52,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:32:52,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [831397697] [2020-09-24 22:32:52,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:32:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:52,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:53,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:57,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:57,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 22:32:57,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:32:57,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-24 22:32:57,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:57,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:32:57,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 22:32:57,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:32:57,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:57,912 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:32:57,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:32:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:57,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:58,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:58,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:32:58,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:58,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 22:32:58,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:58,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:58,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:58,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:58,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:58,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:32:58,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:58,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:58,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:58,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:58,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:58,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:32:58,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:58,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:58,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:58,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:58,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:58,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:32:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:58,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:58,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:58,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:58,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:58,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:32:58,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:58,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:58,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:58,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:58,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:58,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:32:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:58,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:58,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:58,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:58,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:58,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:58,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:58,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:58,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:58,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:58,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:58,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:32:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:58,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:58,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:58,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:32:58,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:58,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:32:58,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:58,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:58,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:58,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:58,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:58,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 22:32:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:58,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:58,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:58,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 22:32:58,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:58,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 22:32:58,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:58,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:32:58,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 22:32:58,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:32:58,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:32:58,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:32:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:58,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:58,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:58,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 22:32:58,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:58,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 22:32:58,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:58,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:32:58,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:32:58,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:32:58,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 35 [2020-09-24 22:32:58,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:32:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:58,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:58,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:58,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:32:58,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:58,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 22:32:58,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:58,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:32:58,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:32:58,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:32:58,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:58,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:32:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:58,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:58,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:58,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:32:58,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:58,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:32:58,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:58,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:32:58,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:58,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:32:58,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:58,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:32:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:58,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:58,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:58,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 22:32:58,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:58,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:32:58,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:58,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:58,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 22:32:58,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:58,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:58,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:32:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:58,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:58,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:58,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 22:32:58,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:58,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:58,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:58,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:58,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:58,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:58,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:58,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:32:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:58,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:58,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:58,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:58,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:58,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:32:58,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:58,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:58,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:58,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:58,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:58,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 22:32:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:58,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:58,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:58,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:32:58,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:58,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:32:58,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:58,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:58,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:32:58,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:58,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:58,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 22:32:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:58,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:58,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:58,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:58,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:58,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:58,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:58,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:58,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:32:58,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:58,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:58,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 22:32:58,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:32:58,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:32:58,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:32:58,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:32:58,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:32:58,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:32:58,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:32:58,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:32:58,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:32:58,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:32:58,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:32:58,561 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 22:32:58,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [831397697] [2020-09-24 22:32:58,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:32:58,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:32:58,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869266234] [2020-09-24 22:32:58,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:32:58,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:32:58,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:32:58,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:32:58,564 INFO L87 Difference]: Start difference. First operand 394 states and 449 transitions. Second operand 8 states. [2020-09-24 22:32:59,831 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:33:00,152 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:33:00,484 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:33:00,804 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:33:01,074 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:33:02,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:33:02,128 INFO L93 Difference]: Finished difference Result 769 states and 964 transitions. [2020-09-24 22:33:02,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 22:33:02,129 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 212 [2020-09-24 22:33:02,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:33:02,139 INFO L225 Difference]: With dead ends: 769 [2020-09-24 22:33:02,139 INFO L226 Difference]: Without dead ends: 485 [2020-09-24 22:33:02,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:33:02,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-09-24 22:33:02,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 400. [2020-09-24 22:33:02,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-09-24 22:33:02,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 455 transitions. [2020-09-24 22:33:02,210 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 455 transitions. Word has length 212 [2020-09-24 22:33:02,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:33:02,210 INFO L479 AbstractCegarLoop]: Abstraction has 400 states and 455 transitions. [2020-09-24 22:33:02,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:33:02,211 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 455 transitions. [2020-09-24 22:33:02,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-09-24 22:33:02,214 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:33:02,214 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] [2020-09-24 22:33:02,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:33:02,215 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:33:02,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:33:02,215 INFO L82 PathProgramCache]: Analyzing trace with hash -773693573, now seen corresponding path program 1 times [2020-09-24 22:33:02,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:33:02,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231002626] [2020-09-24 22:33:02,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:33:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:02,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:02,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:02,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:03,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-24 22:33:07,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:33:07,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-24 22:33:07,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:33:07,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-09-24 22:33:07,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:33:07,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:07,550 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:33:07,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:33:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:33:07,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 22:33:07,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:33:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:07,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:07,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:33:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:07,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:07,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:33:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:07,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:33:07,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:33:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:33:07,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:07,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 22:33:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:33:07,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 22:33:07,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:33:07,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:33:07,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 22:33:07,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:33:07,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:33:07,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 22:33:07,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:07,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:07,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:33:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 22:33:07,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 22:33:07,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-24 22:33:07,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 22:33:07,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 22:33:07,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:33:07,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:33:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:33:07,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:33:07,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:33:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:33:07,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:33:07,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:33:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 22:33:07,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:33:07,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:33:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 22:33:07,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:33:07,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:33:07,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:07,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:07,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 22:33:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:33:07,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:33:07,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:33:07,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-24 22:33:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:07,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:07,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:33:07,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:07,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-24 22:33:07,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:07,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:07,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:33:07,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:33:07,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:33:07,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:33:07,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:33:07,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:33:07,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:33:07,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:33:07,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:33:08,086 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 22:33:08,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231002626] [2020-09-24 22:33:08,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:33:08,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 22:33:08,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909237713] [2020-09-24 22:33:08,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:33:08,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:33:08,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:33:08,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:33:08,090 INFO L87 Difference]: Start difference. First operand 400 states and 455 transitions. Second operand 6 states. [2020-09-24 22:33:09,062 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:33:11,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:33:11,497 INFO L93 Difference]: Finished difference Result 1051 states and 1347 transitions. [2020-09-24 22:33:11,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 22:33:11,497 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 227 [2020-09-24 22:33:11,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:33:11,505 INFO L225 Difference]: With dead ends: 1051 [2020-09-24 22:33:11,505 INFO L226 Difference]: Without dead ends: 585 [2020-09-24 22:33:11,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:33:11,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-09-24 22:33:11,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 463. [2020-09-24 22:33:11,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-09-24 22:33:11,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 526 transitions. [2020-09-24 22:33:11,568 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 526 transitions. Word has length 227 [2020-09-24 22:33:11,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:33:11,569 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 526 transitions. [2020-09-24 22:33:11,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:33:11,569 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 526 transitions. [2020-09-24 22:33:11,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 22:33:11,572 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:33:11,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:33:11,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:33:11,573 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:33:11,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:33:11,573 INFO L82 PathProgramCache]: Analyzing trace with hash 334343405, now seen corresponding path program 1 times [2020-09-24 22:33:11,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:33:11,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [807416734] [2020-09-24 22:33:11,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:33:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:33:11,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:12,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:33:14,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking...