/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:53:21,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:53:21,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:53:21,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:53:21,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:53:21,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:53:21,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:53:21,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:53:21,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:53:21,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:53:21,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:53:21,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:53:21,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:53:21,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:53:21,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:53:21,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:53:21,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:53:21,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:53:21,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:53:21,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:53:21,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:53:21,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:53:21,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:53:21,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:53:21,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:53:21,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:53:21,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:53:21,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:53:21,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:53:21,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:53:21,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:53:21,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:53:21,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:53:21,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:53:21,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:53:21,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:53:21,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:53:21,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:53:21,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:53:21,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:53:21,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:53:21,403 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 17:53:21,448 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:53:21,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:53:21,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:53:21,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:53:21,451 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:53:21,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:53:21,452 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:53:21,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:53:21,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:53:21,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:53:21,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:53:21,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:53:21,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:53:21,455 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:53:21,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:53:21,455 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:53:21,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:53:21,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:53:21,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:53:21,456 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:53:21,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:53:21,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:53:21,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:53:21,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:53:21,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:53:21,457 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:53:21,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:53:21,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:53:21,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:53:21,458 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=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 17:53:22,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:53:22,539 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:53:22,545 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:53:22,548 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:53:22,549 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:53:22,551 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product12.cil.c [2020-09-24 17:53:22,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fff33aefe/bc529f75f5104855babfa99ea72ef2f0/FLAG4f3100ff4 [2020-09-24 17:53:23,278 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:53:23,278 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product12.cil.c [2020-09-24 17:53:23,300 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fff33aefe/bc529f75f5104855babfa99ea72ef2f0/FLAG4f3100ff4 [2020-09-24 17:53:23,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fff33aefe/bc529f75f5104855babfa99ea72ef2f0 [2020-09-24 17:53:23,568 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:53:23,573 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:53:23,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:53:23,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:53:23,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:53:23,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:53:23" (1/1) ... [2020-09-24 17:53:23,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af20ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:23, skipping insertion in model container [2020-09-24 17:53:23,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:53:23" (1/1) ... [2020-09-24 17:53:23,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:53:23,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:53:24,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:53:24,130 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:53:24,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:53:24,266 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:53:24,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24 WrapperNode [2020-09-24 17:53:24,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:53:24,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:53:24,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:53:24,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:53:24,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:53:24,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:53:24,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:53:24,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:53:24,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (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 17:53:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:53:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:53:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 17:53:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 17:53:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 17:53:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 17:53:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 17:53:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 17:53:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 17:53:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 17:53:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 17:53:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 17:53:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 17:53:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 17:53:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 17:53:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 17:53:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 17:53:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 17:53:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 17:53:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 17:53:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 17:53:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 17:53:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 17:53:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 17:53:24,480 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 17:53:24,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:53:24,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 17:53:24,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 17:53:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 17:53:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 17:53:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 17:53:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 17:53:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 17:53:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 17:53:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 17:53:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 17:53:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:53:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:53:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:53:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 17:53:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 17:53:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 17:53:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 17:53:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 17:53:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 17:53:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 17:53:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 17:53:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 17:53:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 17:53:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 17:53:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 17:53:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 17:53:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 17:53:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 17:53:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:53:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 17:53:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 17:53:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 17:53:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:53:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 17:53:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 17:53:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 17:53:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 17:53:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 17:53:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 17:53:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 17:53:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:53:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:53:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 17:53:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:53:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:53:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:53:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:53:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 17:53:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:53:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 17:53:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 17:53:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:53:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 17:53:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 17:53:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 17:53:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 17:53:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 17:53:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 17:53:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:53:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:53:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:53:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:53:25,635 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:53:25,635 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 17:53:25,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:53:25 BoogieIcfgContainer [2020-09-24 17:53:25,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:53:25,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:53:25,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:53:25,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:53:25,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:53:23" (1/3) ... [2020-09-24 17:53:25,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a955904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:53:25, skipping insertion in model container [2020-09-24 17:53:25,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (2/3) ... [2020-09-24 17:53:25,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a955904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:53:25, skipping insertion in model container [2020-09-24 17:53:25,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:53:25" (3/3) ... [2020-09-24 17:53:25,654 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product12.cil.c [2020-09-24 17:53:25,667 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:53:25,679 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:53:25,703 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:53:25,739 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:53:25,739 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:53:25,739 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:53:25,739 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:53:25,739 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:53:25,740 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:53:25,740 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:53:25,740 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:53:25,770 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states. [2020-09-24 17:53:25,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 17:53:25,788 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:53:25,790 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 17:53:25,791 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:53:25,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:53:25,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1560452623, now seen corresponding path program 1 times [2020-09-24 17:53:25,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:53:25,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616066299] [2020-09-24 17:53:25,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:53:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:26,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:26,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:27,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:28,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:30,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:31,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:31,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 17:53:31,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:53:31,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-24 17:53:31,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:31,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:31,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 17:53:31,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:31,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 17:53:31,658 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:53:31,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:53:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:31,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:31,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:31,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:53:31,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:31,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-24 17:53:31,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:31,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:31,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:31,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:31,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:31,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:53:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:31,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:31,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:31,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:31,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:31,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 17:53:31,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:31,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:31,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:31,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:31,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:31,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:53:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:31,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:31,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:31,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:31,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:31,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:31,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:31,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:31,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:31,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:31,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:31,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:53:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:31,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:31,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:31,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:31,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:31,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:53:31,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:31,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:31,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:31,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:31,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:31,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:53:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:31,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:31,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:31,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:31,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:31,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:31,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:31,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:31,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:31,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:31,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:31,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 17:53:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:31,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:31,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:31,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:31,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:31,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:31,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:31,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:31,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:53:31,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:31,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:31,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 17:53:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:31,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:31,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:31,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:31,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:31,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:31,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:31,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:31,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:53:31,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:31,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:32,029 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 17:53:32,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616066299] [2020-09-24 17:53:32,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:53:32,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:53:32,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775297014] [2020-09-24 17:53:32,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:53:32,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:53:32,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:53:32,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:53:32,066 INFO L87 Difference]: Start difference. First operand 270 states. Second operand 3 states. [2020-09-24 17:53:33,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:53:33,797 INFO L93 Difference]: Finished difference Result 372 states and 447 transitions. [2020-09-24 17:53:33,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:53:33,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 17:53:33,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:53:33,820 INFO L225 Difference]: With dead ends: 372 [2020-09-24 17:53:33,821 INFO L226 Difference]: Without dead ends: 243 [2020-09-24 17:53:33,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:53:33,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-24 17:53:33,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 203. [2020-09-24 17:53:33,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-09-24 17:53:33,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 217 transitions. [2020-09-24 17:53:33,927 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 217 transitions. Word has length 142 [2020-09-24 17:53:33,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:53:33,929 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 217 transitions. [2020-09-24 17:53:33,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:53:33,929 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 217 transitions. [2020-09-24 17:53:33,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 17:53:33,934 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:53:33,935 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:53:33,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:53:33,936 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:53:33,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:53:33,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1400986661, now seen corresponding path program 1 times [2020-09-24 17:53:33,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:53:33,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [84381597] [2020-09-24 17:53:33,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:53:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:34,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:34,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:36,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:36,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:38,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 17:53:39,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:53:39,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 17:53:39,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:53:39,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 17:53:39,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:53:39,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:53:39,380 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:53:39,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:53:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:53:39,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 17:53:39,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:39,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:39,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:53:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:39,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:39,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:39,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:53:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:39,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:39,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:39,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:39,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:53:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:39,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:53:39,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:39,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:39,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:53:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:39,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:39,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:39,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:39,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 17:53:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:39,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:39,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:53:39,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:39,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 17:53:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:39,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:39,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:53:39,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:39,687 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 17:53:39,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [84381597] [2020-09-24 17:53:39,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:53:39,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:53:39,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353640337] [2020-09-24 17:53:39,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:53:39,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:53:39,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:53:39,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:53:39,696 INFO L87 Difference]: Start difference. First operand 203 states and 217 transitions. Second operand 4 states. [2020-09-24 17:53:40,512 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:53:41,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:53:41,132 INFO L93 Difference]: Finished difference Result 276 states and 308 transitions. [2020-09-24 17:53:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:53:41,135 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 17:53:41,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:53:41,140 INFO L225 Difference]: With dead ends: 276 [2020-09-24 17:53:41,140 INFO L226 Difference]: Without dead ends: 226 [2020-09-24 17:53:41,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:53:41,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-24 17:53:41,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 193. [2020-09-24 17:53:41,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-24 17:53:41,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 204 transitions. [2020-09-24 17:53:41,186 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 204 transitions. Word has length 143 [2020-09-24 17:53:41,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:53:41,186 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 204 transitions. [2020-09-24 17:53:41,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:53:41,187 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 204 transitions. [2020-09-24 17:53:41,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 17:53:41,189 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:53:41,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:53:41,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:53:41,190 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:53:41,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:53:41,191 INFO L82 PathProgramCache]: Analyzing trace with hash 424122096, now seen corresponding path program 1 times [2020-09-24 17:53:41,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:53:41,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1304080124] [2020-09-24 17:53:41,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:53:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:41,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:41,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:42,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:42,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 17:53:46,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:53:46,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 17:53:46,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:53:46,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 17:53:46,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:53:46,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:46,576 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:53:46,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:53:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:53:46,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 17:53:46,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:46,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:46,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:53:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:46,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:46,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:46,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:46,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:53:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:46,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:46,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:46,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:46,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:53:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:46,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:53:46,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:46,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:46,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:53:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:46,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:46,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:46,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:46,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 17:53:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:53:46,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:53:46,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:53:46,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:46,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 17:53:46,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:46,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 17:53:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:46,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:46,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:53:46,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:46,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 17:53:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:46,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:53:46,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:53:46,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:46,880 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 17:53:46,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1304080124] [2020-09-24 17:53:46,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:53:46,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 17:53:46,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564409919] [2020-09-24 17:53:46,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:53:46,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:53:46,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:53:46,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:53:46,890 INFO L87 Difference]: Start difference. First operand 193 states and 204 transitions. Second operand 5 states. [2020-09-24 17:53:47,370 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:53:48,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:53:48,447 INFO L93 Difference]: Finished difference Result 421 states and 487 transitions. [2020-09-24 17:53:48,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:53:48,448 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 17:53:48,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:53:48,452 INFO L225 Difference]: With dead ends: 421 [2020-09-24 17:53:48,453 INFO L226 Difference]: Without dead ends: 338 [2020-09-24 17:53:48,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:53:48,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-09-24 17:53:48,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 260. [2020-09-24 17:53:48,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-09-24 17:53:48,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 281 transitions. [2020-09-24 17:53:48,511 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 281 transitions. Word has length 156 [2020-09-24 17:53:48,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:53:48,511 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 281 transitions. [2020-09-24 17:53:48,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:53:48,512 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 281 transitions. [2020-09-24 17:53:48,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-24 17:53:48,514 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:53:48,514 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] [2020-09-24 17:53:48,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:53:48,515 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:53:48,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:53:48,515 INFO L82 PathProgramCache]: Analyzing trace with hash -287515457, now seen corresponding path program 1 times [2020-09-24 17:53:48,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:53:48,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227701125] [2020-09-24 17:53:48,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:53:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:48,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:49,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:51,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:53,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:53,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 17:53:53,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:53:53,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-24 17:53:53,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:53,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:53:53,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-24 17:53:53,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 17:53:53,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:53,924 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:53:53,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:53:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:53,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:53:54,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:54,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 17:53:54,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:54,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:54,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:54,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:53:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:54,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:54,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:54,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:54,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:54,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:54,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:54,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:53:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:54,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:54,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:54,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:53:54,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:54,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:54,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:54,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:53:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:54,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:54,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:54,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:54,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:54,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:54,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:54,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:53:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:54,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:54,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:54,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:53:54,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:54,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:54,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:54,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 17:53:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:54,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:53:54,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:54,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:54,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:54,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:54,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:54,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 17:53:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:54,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:54,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:54,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:53:54,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:53:54,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:54,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:53:54,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 17:53:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:54,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:54,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:54,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:53:54,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:53:54,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:54,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:53:54,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 17:53:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:54,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:54,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:54,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 17:53:54,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:53:54,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:54,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:53:54,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,230 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 17:53:54,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227701125] [2020-09-24 17:53:54,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:53:54,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 17:53:54,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507799932] [2020-09-24 17:53:54,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 17:53:54,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:53:54,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 17:53:54,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:53:54,233 INFO L87 Difference]: Start difference. First operand 260 states and 281 transitions. Second operand 9 states. [2020-09-24 17:53:55,029 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:53:56,534 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:53:56,818 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:53:57,104 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:53:57,437 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 17:53:57,769 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 17:53:57,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:53:57,984 INFO L93 Difference]: Finished difference Result 447 states and 515 transitions. [2020-09-24 17:53:57,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 17:53:57,985 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 159 [2020-09-24 17:53:57,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:53:57,986 INFO L225 Difference]: With dead ends: 447 [2020-09-24 17:53:57,986 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 17:53:57,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-24 17:53:57,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 17:53:57,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 17:53:57,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 17:53:57,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 17:53:57,995 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 159 [2020-09-24 17:53:57,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:53:57,995 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 17:53:57,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 17:53:57,995 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 17:53:57,996 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 17:53:57,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:53:57,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 17:53:58,216 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:53:58,389 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:53:58,527 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 7 [2020-09-24 17:53:58,645 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 7 [2020-09-24 17:53:58,804 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:53:59,141 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 17:53:59,475 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 17:53:59,804 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 17:54:00,066 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 187 [2020-09-24 17:54:00,230 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:00,390 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:00,546 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:00,702 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:00,871 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:01,204 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 17:54:01,528 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 17:54:01,842 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 17:54:02,081 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 187 [2020-09-24 17:54:02,192 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 7 [2020-09-24 17:54:02,347 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:02,502 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:02,656 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:02,763 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 7 [2020-09-24 17:54:03,086 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-24 17:54:03,403 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-24 17:54:03,721 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-24 17:54:03,860 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:54:04,012 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:04,165 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:04,322 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:04,477 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:04,630 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:04,780 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:04,935 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:05,085 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:05,239 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:05,392 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:05,548 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:05,701 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:05,849 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:06,002 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:06,150 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:06,303 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:06,456 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:06,609 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:06,713 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 7 [2020-09-24 17:54:06,865 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:07,018 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:07,172 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:07,326 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:07,474 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:07,626 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:07,944 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-24 17:54:08,261 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-24 17:54:08,577 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-24 17:54:08,828 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:09,056 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-24 17:54:09,273 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-24 17:54:09,644 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 10 [2020-09-24 17:54:09,878 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-24 17:54:10,088 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-09-24 17:54:10,306 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22