/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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_spec2_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:16:27,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:16:27,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:16:27,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:16:27,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:16:27,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:16:27,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:16:27,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:16:27,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:16:27,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:16:27,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:16:27,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:16:27,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:16:27,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:16:27,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:16:27,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:16:27,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:16:27,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:16:27,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:16:27,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:16:27,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:16:27,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:16:27,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:16:27,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:16:27,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:16:27,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:16:27,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:16:27,284 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:16:27,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:16:27,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:16:27,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:16:27,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:16:27,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:16:27,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:16:27,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:16:27,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:16:27,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:16:27,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:16:27,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:16:27,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:16:27,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:16:27,295 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 [2020-09-25 14:16:27,341 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:16:27,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:16:27,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:16:27,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:16:27,344 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:16:27,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:16:27,344 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:16:27,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:16:27,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:16:27,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:16:27,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:16:27,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:16:27,346 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:16:27,347 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:16:27,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:16:27,347 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:16:27,347 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:16:27,347 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:16:27,348 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:16:27,348 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:16:27,348 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:16:27,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:16:27,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:16:27,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:16:27,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:16:27,350 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:16:27,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:16:27,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:16:27,351 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:16:27,351 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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:16:27,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:16:27,854 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:16:27,863 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:16:27,865 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:16:27,867 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:16:27,868 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product35.cil.c [2020-09-25 14:16:27,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8d097e75/714c809e152c4ea69f416f58dcf8929c/FLAG65750d48f [2020-09-25 14:16:28,587 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:16:28,588 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product35.cil.c [2020-09-25 14:16:28,609 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8d097e75/714c809e152c4ea69f416f58dcf8929c/FLAG65750d48f [2020-09-25 14:16:28,857 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8d097e75/714c809e152c4ea69f416f58dcf8929c [2020-09-25 14:16:28,869 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:16:28,874 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:16:28,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:16:28,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:16:28,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:16:28,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:16:28" (1/1) ... [2020-09-25 14:16:28,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c86c800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:28, skipping insertion in model container [2020-09-25 14:16:28,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:16:28" (1/1) ... [2020-09-25 14:16:28,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:16:28,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:16:29,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:16:29,424 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:16:29,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:16:29,555 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:16:29,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:29 WrapperNode [2020-09-25 14:16:29,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:16:29,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:16:29,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:16:29,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:16:29,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:29" (1/1) ... [2020-09-25 14:16:29,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:29" (1/1) ... [2020-09-25 14:16:29,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:29" (1/1) ... [2020-09-25 14:16:29,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:29" (1/1) ... [2020-09-25 14:16:29,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:29" (1/1) ... [2020-09-25 14:16:29,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:29" (1/1) ... [2020-09-25 14:16:29,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:29" (1/1) ... [2020-09-25 14:16:29,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:16:29,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:16:29,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:16:29,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:16:29,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:29" (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 [2020-09-25 14:16:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:16:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:16:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:16:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:16:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:16:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:16:29,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:16:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:16:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:16:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:16:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:16:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:16:29,798 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:16:29,798 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:16:29,798 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:16:29,799 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:16:29,799 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:16:29,799 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 14:16:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:16:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:16:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 14:16:29,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 14:16:29,801 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:16:29,801 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:16:29,801 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:16:29,801 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:16:29,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:16:29,802 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:16:29,802 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:16:29,802 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:16:29,802 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:16:29,802 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:16:29,802 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:16:29,802 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:16:29,802 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:16:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:16:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:16:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:16:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 14:16:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:16:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:16:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:16:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:16:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:16:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:16:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:16:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:16:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:16:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:16:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:16:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:16:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:16:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:16:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:16:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:16:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:16:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:16:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:16:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:16:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:16:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:16:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:16:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 14:16:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:16:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:16:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:16:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:16:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:16:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:16:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 14:16:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:16:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:16:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 14:16:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:16:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:16:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:16:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:16:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:16:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:16:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 14:16:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:16:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:16:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:16:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:16:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:16:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:16:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:16:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:16:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:16:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:16:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:16:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:16:31,017 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:16:31,017 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:16:31,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:16:31 BoogieIcfgContainer [2020-09-25 14:16:31,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:16:31,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:16:31,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:16:31,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:16:31,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:16:28" (1/3) ... [2020-09-25 14:16:31,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7221ea6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:16:31, skipping insertion in model container [2020-09-25 14:16:31,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:29" (2/3) ... [2020-09-25 14:16:31,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7221ea6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:16:31, skipping insertion in model container [2020-09-25 14:16:31,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:16:31" (3/3) ... [2020-09-25 14:16:31,035 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2020-09-25 14:16:31,047 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:16:31,059 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:16:31,083 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:16:31,124 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:16:31,125 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:16:31,125 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:16:31,125 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:16:31,125 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:16:31,125 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:16:31,126 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:16:31,126 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:16:31,159 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-09-25 14:16:31,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 14:16:31,179 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:16:31,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:16:31,181 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:16:31,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:16:31,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1842377824, now seen corresponding path program 1 times [2020-09-25 14:16:31,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:16:31,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079776337] [2020-09-25 14:16:31,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:16:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:31,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:31,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:33,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:34,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:34,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:36,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:36,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 14:16:36,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:16:36,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-09-25 14:16:36,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:36,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:36,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:16:36,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:16:36,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 14:16:36,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 14:16:37,205 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:16:37,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:16:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:37,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:37,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:37,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:16:37,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:37,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-25 14:16:37,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:37,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:37,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:37,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:37,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:16:37,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:37,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:16:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:37,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:37,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:37,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:37,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:37,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:16:37,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:37,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:37,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:37,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:37,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:16:37,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:37,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:16:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:37,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:37,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:37,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:37,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:37,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:16:37,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:37,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:16:37,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:37,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:16:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:37,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:37,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:37,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:37,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:37,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:16:37,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:37,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:16:37,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:37,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:16:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:37,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:37,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:37,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:37,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:37,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:16:37,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:37,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:37,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:37,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:37,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:16:37,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:37,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:16:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:37,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:37,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:37,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:16:37,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:37,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:16:37,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:37,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:37,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:37,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:37,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:16:37,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:37,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 14:16:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:37,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:37,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:37,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:37,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:37,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:37,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:37,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:37,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:37,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:16:37,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:37,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:37,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 14:16:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:37,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:37,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:37,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:37,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:37,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:37,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:37,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:37,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:37,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:16:37,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:37,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:37,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:16:37,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079776337] [2020-09-25 14:16:37,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:16:37,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:16:37,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804701090] [2020-09-25 14:16:37,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:16:37,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:16:37,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:16:37,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:16:37,797 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 5 states. [2020-09-25 14:16:38,406 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:16:40,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:16:40,264 INFO L93 Difference]: Finished difference Result 604 states and 727 transitions. [2020-09-25 14:16:40,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:16:40,267 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 14:16:40,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:16:40,290 INFO L225 Difference]: With dead ends: 604 [2020-09-25 14:16:40,290 INFO L226 Difference]: Without dead ends: 432 [2020-09-25 14:16:40,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:16:40,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-09-25 14:16:40,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 363. [2020-09-25 14:16:40,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-09-25 14:16:40,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 402 transitions. [2020-09-25 14:16:40,441 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 402 transitions. Word has length 148 [2020-09-25 14:16:40,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:16:40,442 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 402 transitions. [2020-09-25 14:16:40,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:16:40,443 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 402 transitions. [2020-09-25 14:16:40,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 14:16:40,448 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:16:40,448 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] [2020-09-25 14:16:40,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:16:40,449 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:16:40,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:16:40,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1519708534, now seen corresponding path program 1 times [2020-09-25 14:16:40,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:16:40,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1824633655] [2020-09-25 14:16:40,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:16:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:40,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:40,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:40,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:43,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:44,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:45,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:45,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 14:16:45,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:16:45,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-09-25 14:16:45,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:45,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:45,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:16:45,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 14:16:45,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 14:16:45,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:45,922 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:16:45,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:16:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:45,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:46,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:46,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:16:46,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:46,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 14:16:46,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:46,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:46,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:46,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:46,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:46,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:46,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:16:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:46,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:46,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:46,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:46,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:46,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:46,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:46,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:46,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:46,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:46,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:46,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:46,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:16:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:46,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:46,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:46,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:46,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:46,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:16:46,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:46,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:46,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:46,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:46,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:46,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:46,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:16:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:46,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:46,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:46,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:46,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:46,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:16:46,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:46,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:46,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:46,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:46,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:46,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:46,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:16:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:46,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:46,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:46,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:46,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:46,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:46,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:46,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:46,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:46,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:46,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:46,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:46,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:16:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:46,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:46,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:46,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:16:46,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:46,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:16:46,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:46,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:46,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:46,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:46,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 14:16:46,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:46,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 14:16:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:46,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:46,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:46,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:16:46,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:46,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 14:16:46,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:46,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:46,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:46,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:46,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:16:46,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:46,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:16:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:46,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:46,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:46,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:46,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:46,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:46,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:46,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:46,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:46,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:46,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:46,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:46,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 14:16:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:46,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:46,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:46,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:46,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:46,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 14:16:46,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:46,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:46,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:46,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:46,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:16:46,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:46,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 14:16:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:46,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:46,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:46,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:46,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:46,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:16:46,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:46,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:46,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:46,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:46,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:16:46,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:46,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:16:46,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1824633655] [2020-09-25 14:16:46,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:16:46,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:16:46,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311773364] [2020-09-25 14:16:46,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:16:46,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:16:46,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:16:46,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:16:46,295 INFO L87 Difference]: Start difference. First operand 363 states and 402 transitions. Second operand 6 states. [2020-09-25 14:16:46,883 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:16:49,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:16:49,482 INFO L93 Difference]: Finished difference Result 942 states and 1253 transitions. [2020-09-25 14:16:49,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 14:16:49,484 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-09-25 14:16:49,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:16:49,504 INFO L225 Difference]: With dead ends: 942 [2020-09-25 14:16:49,504 INFO L226 Difference]: Without dead ends: 939 [2020-09-25 14:16:49,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 4 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:16:49,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2020-09-25 14:16:49,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 614. [2020-09-25 14:16:49,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 614 states. [2020-09-25 14:16:49,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 703 transitions. [2020-09-25 14:16:49,646 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 703 transitions. Word has length 157 [2020-09-25 14:16:49,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:16:49,647 INFO L479 AbstractCegarLoop]: Abstraction has 614 states and 703 transitions. [2020-09-25 14:16:49,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:16:49,647 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 703 transitions. [2020-09-25 14:16:49,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-25 14:16:49,654 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:16:49,654 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:16:49,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:16:49,655 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:16:49,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:16:49,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1646513808, now seen corresponding path program 1 times [2020-09-25 14:16:49,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:16:49,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286777757] [2020-09-25 14:16:49,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:16:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:49,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:49,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:50,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:50,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:50,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:52,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:52,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:53,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:54,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:54,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:54,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-25 14:16:54,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 14:16:54,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 14:16:54,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:54,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:54,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 14:16:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 14:16:54,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:55,123 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:16:55,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:16:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:55,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:55,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:55,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:16:55,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:55,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 14:16:55,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:55,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:55,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:55,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:55,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:55,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:16:55,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:16:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:55,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:55,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:55,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:55,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:55,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:55,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:55,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:55,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:55,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:55,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:55,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:55,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:16:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:55,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:55,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:55,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:55,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:55,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:16:55,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:55,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:55,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:55,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:55,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:55,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:16:55,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:16:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:55,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:55,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:55,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:55,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:55,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:16:55,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:55,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:55,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:55,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:55,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:55,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:55,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:16:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:55,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:55,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:55,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:55,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:55,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:16:55,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:55,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:55,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:55,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:55,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:55,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:55,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:16:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:55,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:55,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:55,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:16:55,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:55,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:55,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:55,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:55,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:55,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 14:16:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:55,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:55,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:55,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:55,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:55,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 14:16:55,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:16:55,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-25 14:16:55,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:55,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:55,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:55,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:55,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 14:16:55,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:16:55,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:16:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:55,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:55,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:55,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:16:55,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:55,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:16:55,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:55,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:55,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:55,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:55,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:55,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:55,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:16:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:55,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:55,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:55,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:55,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:55,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:16:55,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:55,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:55,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:55,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:55,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:55,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:55,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:16:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:55,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:55,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:55,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 14:16:55,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:55,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:16:55,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:55,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:55,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:55,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:55,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:55,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:55,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:16:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:55,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:55,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:55,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:55,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:55,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:55,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:55,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:55,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:55,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:55,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:55,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:55,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 14:16:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:55,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:55,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:55,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:55,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:55,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:55,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:55,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:55,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:55,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:55,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:55,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:55,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 14:16:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:55,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:55,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:55,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:16:55,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:55,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:16:55,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:55,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:55,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:55,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 14:16:55,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:55,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:55,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:16:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:55,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:55,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:55,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:55,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:55,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:55,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:55,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:55,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:55,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:55,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:55,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:55,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 14:16:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:55,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:55,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:55,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:55,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:55,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:16:55,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:55,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:16:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:55,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:55,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-25 14:16:55,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:55,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:55,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:55,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:55,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:55,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:55,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:55,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:55,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:55,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:16:55,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:55,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:55,801 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-25 14:16:55,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286777757] [2020-09-25 14:16:55,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:16:55,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:16:55,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490591892] [2020-09-25 14:16:55,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:16:55,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:16:55,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:16:55,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:16:55,806 INFO L87 Difference]: Start difference. First operand 614 states and 703 transitions. Second operand 7 states. [2020-09-25 14:16:56,681 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:16:57,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:16:57,944 INFO L93 Difference]: Finished difference Result 1129 states and 1377 transitions. [2020-09-25 14:16:57,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 14:16:57,945 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 211 [2020-09-25 14:16:57,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:16:57,953 INFO L225 Difference]: With dead ends: 1129 [2020-09-25 14:16:57,953 INFO L226 Difference]: Without dead ends: 768 [2020-09-25 14:16:57,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:16:57,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2020-09-25 14:16:58,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 574. [2020-09-25 14:16:58,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2020-09-25 14:16:58,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 643 transitions. [2020-09-25 14:16:58,062 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 643 transitions. Word has length 211 [2020-09-25 14:16:58,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:16:58,064 INFO L479 AbstractCegarLoop]: Abstraction has 574 states and 643 transitions. [2020-09-25 14:16:58,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:16:58,064 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 643 transitions. [2020-09-25 14:16:58,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 14:16:58,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:16:58,070 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:16:58,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:16:58,070 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:16:58,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:16:58,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1981589357, now seen corresponding path program 1 times [2020-09-25 14:16:58,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:16:58,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024243344] [2020-09-25 14:16:58,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:16:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:58,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:58,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:58,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:58,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:02,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:03,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:03,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-09-25 14:17:03,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:17:03,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 14:17:03,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:03,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:03,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:17:03,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 14:17:03,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-25 14:17:03,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:03,466 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:17:03,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:17:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:03,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:03,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:03,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:17:03,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:03,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-09-25 14:17:03,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:03,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:03,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:03,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:03,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 14:17:03,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:03,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:17:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:03,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:03,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:03,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:03,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:03,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:17:03,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:03,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:03,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:03,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:03,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:03,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:03,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:17:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:03,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:03,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:03,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:03,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:03,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:17:03,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:03,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:03,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:03,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:03,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:03,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:03,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:17:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:03,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:03,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:03,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:03,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:03,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:17:03,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:03,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:03,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:03,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:03,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:17:03,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:17:03,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:17:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:03,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:03,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:03,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:03,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:03,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:17:03,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:03,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:03,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:03,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:03,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:03,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:17:03,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:17:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:03,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:03,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:03,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:17:03,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:03,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:17:03,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:03,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:03,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:17:03,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:03,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 14:17:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:03,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:03,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:03,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:17:03,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:03,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:17:03,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:03,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:03,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:03,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:03,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:17:03,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:03,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 14:17:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:03,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:03,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:04,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:04,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 14:17:04,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:17:04,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-25 14:17:04,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:04,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:04,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:17:04,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:17:04,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 14:17:04,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:17:04,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:17:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:04,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:04,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:04,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 14:17:04,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:04,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 14:17:04,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:04,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:04,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:17:04,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 14:17:04,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 14:17:04,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:04,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:17:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:04,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:04,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:04,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:04,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:04,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:17:04,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:04,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:04,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:17:04,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:04,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:17:04,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:04,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 14:17:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:04,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:04,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:04,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:04,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:04,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 14:17:04,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:04,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:04,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:17:04,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:04,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:17:04,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:04,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 14:17:04,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:04,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:04,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:04,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:04,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:04,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:17:04,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:04,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:04,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:17:04,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:17:04,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:17:04,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:17:04,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-25 14:17:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:04,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:04,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:04,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:04,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:04,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:17:04,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:04,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:17:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:17:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:17:04,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:04,420 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 14:17:04,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024243344] [2020-09-25 14:17:04,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:17:04,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 14:17:04,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645830819] [2020-09-25 14:17:04,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 14:17:04,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:17:04,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 14:17:04,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:17:04,425 INFO L87 Difference]: Start difference. First operand 574 states and 643 transitions. Second operand 13 states. [2020-09-25 14:17:05,009 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:17:06,019 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:17:07,029 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:17:07,394 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:17:08,160 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-25 14:17:08,571 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:17:09,231 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 195 [2020-09-25 14:17:09,581 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 14:17:10,203 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-25 14:17:10,915 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-09-25 14:17:11,360 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:17:11,989 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 194 [2020-09-25 14:17:12,640 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-09-25 14:17:13,064 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:17:13,706 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:17:14,057 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:17:14,525 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:17:14,849 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 14:17:16,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:17:16,218 INFO L93 Difference]: Finished difference Result 1953 states and 2385 transitions. [2020-09-25 14:17:16,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-09-25 14:17:16,219 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 213 [2020-09-25 14:17:16,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:17:16,228 INFO L225 Difference]: With dead ends: 1953 [2020-09-25 14:17:16,228 INFO L226 Difference]: Without dead ends: 1494 [2020-09-25 14:17:16,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=598, Invalid=2264, Unknown=0, NotChecked=0, Total=2862 [2020-09-25 14:17:16,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2020-09-25 14:17:16,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1352. [2020-09-25 14:17:16,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2020-09-25 14:17:16,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1505 transitions. [2020-09-25 14:17:16,404 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1505 transitions. Word has length 213 [2020-09-25 14:17:16,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:17:16,405 INFO L479 AbstractCegarLoop]: Abstraction has 1352 states and 1505 transitions. [2020-09-25 14:17:16,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 14:17:16,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1505 transitions. [2020-09-25 14:17:16,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-25 14:17:16,412 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:17:16,412 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:17:16,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:17:16,413 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:17:16,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:17:16,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1861144621, now seen corresponding path program 1 times [2020-09-25 14:17:16,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:17:16,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1751514899] [2020-09-25 14:17:16,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:17:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:16,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:16,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking...