/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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_spec3_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:07:04,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:07:04,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:07:04,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:07:04,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:07:04,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:07:04,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:07:04,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:07:04,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:07:04,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:07:04,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:07:04,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:07:04,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:07:04,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:07:04,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:07:04,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:07:04,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:07:04,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:07:04,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:07:04,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:07:04,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:07:04,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:07:04,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:07:04,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:07:04,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:07:04,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:07:04,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:07:04,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:07:04,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:07:04,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:07:04,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:07:04,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:07:04,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:07:04,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:07:04,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:07:04,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:07:04,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:07:04,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:07:04,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:07:04,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:07:04,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:07:04,843 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 04:07:04,869 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:07:04,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:07:04,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:07:04,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:07:04,871 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:07:04,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:07:04,872 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:07:04,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:07:04,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:07:04,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:07:04,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:07:04,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:07:04,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:07:04,873 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:07:04,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:07:04,873 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:07:04,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:07:04,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:07:04,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:07:04,874 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:07:04,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:07:04,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:07:04,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:07:04,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:07:04,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:07:04,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:07:04,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:07:04,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:07:04,876 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:07:04,876 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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:07:05,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:07:05,390 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:07:05,398 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:07:05,399 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:07:05,401 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:07:05,402 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c [2020-09-25 04:07:05,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c06b7d947/7f0b9284fb804f54a018b96a4cb65eb5/FLAGf4fb4130d [2020-09-25 04:07:06,129 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:07:06,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c [2020-09-25 04:07:06,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c06b7d947/7f0b9284fb804f54a018b96a4cb65eb5/FLAGf4fb4130d [2020-09-25 04:07:06,382 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c06b7d947/7f0b9284fb804f54a018b96a4cb65eb5 [2020-09-25 04:07:06,395 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:07:06,400 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:07:06,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:07:06,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:07:06,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:07:06,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:07:06" (1/1) ... [2020-09-25 04:07:06,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:06, skipping insertion in model container [2020-09-25 04:07:06,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:07:06" (1/1) ... [2020-09-25 04:07:06,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:07:06,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:07:06,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:07:06,877 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:07:07,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:07:07,169 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:07:07,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:07 WrapperNode [2020-09-25 04:07:07,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:07:07,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:07:07,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:07:07,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:07:07,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:07" (1/1) ... [2020-09-25 04:07:07,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:07" (1/1) ... [2020-09-25 04:07:07,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:07" (1/1) ... [2020-09-25 04:07:07,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:07" (1/1) ... [2020-09-25 04:07:07,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:07" (1/1) ... [2020-09-25 04:07:07,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:07" (1/1) ... [2020-09-25 04:07:07,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:07" (1/1) ... [2020-09-25 04:07:07,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:07:07,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:07:07,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:07:07,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:07:07,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:07" (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 04:07:07,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:07:07,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:07:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:07:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:07:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:07:07,398 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:07:07,398 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:07:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:07:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:07:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:07:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:07:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:07:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:07:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:07:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:07:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:07:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 04:07:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:07:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:07:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:07:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:07:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:07:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:07:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:07:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 04:07:07,405 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:07:07,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:07:07,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:07:07,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:07:07,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:07:07,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:07:07,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:07:07,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:07:07,407 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:07:07,407 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:07:07,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:07:07,408 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:07:07,408 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:07:07,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 04:07:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:07:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:07:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:07:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:07:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:07:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:07:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:07:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:07:07,410 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:07:07,411 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:07:07,411 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:07:07,411 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:07:07,411 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:07:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:07:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:07:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:07:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:07:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:07:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:07:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:07:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 04:07:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 04:07:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:07:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:07:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:07:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 04:07:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:07:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:07:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:07:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:07:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:07:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:07:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:07:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:07:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:07:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:07:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:07:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:07:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:07:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:07:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:07:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:07:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:07:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:07:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:07:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:07:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:07:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:07:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:07:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:07:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:07:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:07:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:07:08,594 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:07:08,594 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:07:08,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:07:08 BoogieIcfgContainer [2020-09-25 04:07:08,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:07:08,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:07:08,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:07:08,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:07:08,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:07:06" (1/3) ... [2020-09-25 04:07:08,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7559229a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:07:08, skipping insertion in model container [2020-09-25 04:07:08,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:07" (2/3) ... [2020-09-25 04:07:08,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7559229a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:07:08, skipping insertion in model container [2020-09-25 04:07:08,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:07:08" (3/3) ... [2020-09-25 04:07:08,615 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2020-09-25 04:07:08,628 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:07:08,644 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:07:08,670 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:07:08,723 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:07:08,723 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:07:08,724 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:07:08,724 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:07:08,724 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:07:08,724 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:07:08,724 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:07:08,724 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:07:08,773 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2020-09-25 04:07:08,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 04:07:08,812 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:07:08,814 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] [2020-09-25 04:07:08,815 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:07:08,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:07:08,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1883472631, now seen corresponding path program 1 times [2020-09-25 04:07:08,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:07:08,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708894993] [2020-09-25 04:07:08,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:07:09,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:09,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:09,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:11,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:14,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:14,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 04:07:14,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:07:14,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 04:07:14,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:14,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:14,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:14,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 04:07:14,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:14,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 04:07:14,976 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:07:14,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:07:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:15,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:15,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:15,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:07:15,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:15,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-25 04:07:15,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:15,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:15,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:15,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:07:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:15,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:15,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:15,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:15,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:15,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:15,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:15,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:15,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:15,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:15,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:15,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:15,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:07:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:15,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:15,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:15,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:15,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:15,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:07:15,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:15,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:15,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:15,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:15,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:15,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:15,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:07:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:15,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:15,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:15,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:15,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:15,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:07:15,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:15,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:15,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:15,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:15,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:15,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:15,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:07:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:15,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:15,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:15,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:15,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:15,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:15,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:15,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:15,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:15,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:15,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:15,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:15,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:07:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:15,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:15,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:15,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:15,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:15,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:15,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:15,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:15,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:15,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:15,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:15,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:15,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:07:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:15,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:15,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:15,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:15,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:15,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:15,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:15,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:15,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:15,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:15,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:15,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:15,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 04:07:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:15,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:15,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:15,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:15,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:15,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:15,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:15,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:15,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:15,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:15,380 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 04:07:15,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708894993] [2020-09-25 04:07:15,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:07:15,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:07:15,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491739621] [2020-09-25 04:07:15,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:07:15,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:07:15,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:07:15,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:07:15,419 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 3 states. [2020-09-25 04:07:17,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:07:17,005 INFO L93 Difference]: Finished difference Result 503 states and 601 transitions. [2020-09-25 04:07:17,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:07:17,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 04:07:17,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:07:17,028 INFO L225 Difference]: With dead ends: 503 [2020-09-25 04:07:17,029 INFO L226 Difference]: Without dead ends: 310 [2020-09-25 04:07:17,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:07:17,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-09-25 04:07:17,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 267. [2020-09-25 04:07:17,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-09-25 04:07:17,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 292 transitions. [2020-09-25 04:07:17,165 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 292 transitions. Word has length 153 [2020-09-25 04:07:17,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:07:17,166 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 292 transitions. [2020-09-25 04:07:17,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:07:17,166 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 292 transitions. [2020-09-25 04:07:17,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 04:07:17,170 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:07:17,170 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] [2020-09-25 04:07:17,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:07:17,171 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:07:17,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:07:17,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1086228284, now seen corresponding path program 1 times [2020-09-25 04:07:17,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:07:17,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63460959] [2020-09-25 04:07:17,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:07:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:17,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:17,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:19,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:22,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:22,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 04:07:22,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:07:22,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5119 [2020-09-25 04:07:22,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:22,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:22,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:22,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 04:07:22,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:07:22,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:22,736 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:07:22,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:07:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:22,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:22,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:22,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:07:22,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:22,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 04:07:22,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:22,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:22,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:22,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:22,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:22,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:22,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:07:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:22,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:22,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:22,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:22,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:22,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:22,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:22,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:22,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:22,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:22,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:22,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:07:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:22,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:22,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:22,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:22,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:22,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:22,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:22,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:22,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:22,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:22,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:22,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:22,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:07:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:22,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:22,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:22,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:22,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:22,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:07:22,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:22,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:22,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:22,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:22,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:22,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:22,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:07:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:22,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:22,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:22,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:22,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:22,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:22,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:22,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:22,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:22,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:22,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:22,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:22,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 04:07:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:22,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:22,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:22,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:22,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:22,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:22,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:22,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:22,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:22,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:22,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:22,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:07:22,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 04:07:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:22,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:22,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:22,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:22,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:22,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:22,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:22,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:22,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:22,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:22,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:22,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:22,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 04:07:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:22,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:22,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:22,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:22,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:22,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:22,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:22,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:22,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:22,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:22,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:22,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:07:23,005 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 04:07:23,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [63460959] [2020-09-25 04:07:23,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:07:23,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:07:23,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337197912] [2020-09-25 04:07:23,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:07:23,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:07:23,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:07:23,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:07:23,011 INFO L87 Difference]: Start difference. First operand 267 states and 292 transitions. Second operand 4 states. [2020-09-25 04:07:23,761 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:07:24,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:07:24,879 INFO L93 Difference]: Finished difference Result 414 states and 468 transitions. [2020-09-25 04:07:24,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:07:24,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 04:07:24,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:07:24,890 INFO L225 Difference]: With dead ends: 414 [2020-09-25 04:07:24,890 INFO L226 Difference]: Without dead ends: 293 [2020-09-25 04:07:24,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:07:24,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-25 04:07:24,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 257. [2020-09-25 04:07:24,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-09-25 04:07:24,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 279 transitions. [2020-09-25 04:07:24,958 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 279 transitions. Word has length 154 [2020-09-25 04:07:24,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:07:24,960 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 279 transitions. [2020-09-25 04:07:24,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:07:24,960 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 279 transitions. [2020-09-25 04:07:24,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 04:07:24,966 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:07:24,967 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:07:24,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:07:24,967 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:07:24,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:07:24,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1753608415, now seen corresponding path program 1 times [2020-09-25 04:07:24,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:07:24,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522224839] [2020-09-25 04:07:24,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:07:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:25,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:25,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:29,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:29,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 04:07:29,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:07:29,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4152 [2020-09-25 04:07:29,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:29,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:29,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:07:29,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 04:07:29,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 04:07:29,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:29,573 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:07:29,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:07:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:29,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:29,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:29,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:07:29,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:29,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-09-25 04:07:29,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:29,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:29,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:29,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:29,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 04:07:29,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:29,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:07:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:29,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:29,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:29,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:29,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:29,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:29,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:29,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:29,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:29,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:29,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:07:29,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:07:29,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:07:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:29,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:29,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:29,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:29,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:29,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:29,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:29,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:29,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:29,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:29,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:07:29,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:29,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:07:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:29,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:29,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:29,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:29,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:29,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:07:29,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:29,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:29,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:29,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:29,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:07:29,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:07:29,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:07:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:29,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:29,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:29,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:29,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:29,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:29,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:29,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:29,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:29,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:29,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:07:29,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:29,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:07:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:30,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:30,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:30,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:30,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:30,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:30,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:30,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:30,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:30,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:30,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:30,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:07:30,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 04:07:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:30,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:30,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:30,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:30,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:30,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:30,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:30,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:30,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:30,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:30,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:30,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:30,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 04:07:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:30,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:30,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:30,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:30,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:30,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:30,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:30,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:30,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:30,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:30,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:30,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:30,060 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 04:07:30,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1522224839] [2020-09-25 04:07:30,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:07:30,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:07:30,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416685086] [2020-09-25 04:07:30,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:07:30,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:07:30,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:07:30,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:07:30,065 INFO L87 Difference]: Start difference. First operand 257 states and 279 transitions. Second operand 4 states. [2020-09-25 04:07:30,514 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:07:32,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:07:32,635 INFO L93 Difference]: Finished difference Result 599 states and 688 transitions. [2020-09-25 04:07:32,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:07:32,636 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-25 04:07:32,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:07:32,644 INFO L225 Difference]: With dead ends: 599 [2020-09-25 04:07:32,644 INFO L226 Difference]: Without dead ends: 452 [2020-09-25 04:07:32,646 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:07:32,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2020-09-25 04:07:32,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 398. [2020-09-25 04:07:32,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-09-25 04:07:32,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 443 transitions. [2020-09-25 04:07:32,765 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 443 transitions. Word has length 163 [2020-09-25 04:07:32,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:07:32,767 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 443 transitions. [2020-09-25 04:07:32,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:07:32,767 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 443 transitions. [2020-09-25 04:07:32,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 04:07:32,770 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:07:32,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:07:32,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:07:32,771 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:07:32,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:07:32,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1156257497, now seen corresponding path program 1 times [2020-09-25 04:07:32,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:07:32,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1618524106] [2020-09-25 04:07:32,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:07:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:32,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:34,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:34,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 04:07:34,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:34,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1886 [2020-09-25 04:07:34,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:34,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:34,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 04:07:34,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 04:07:34,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 04:07:34,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:35,057 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:07:35,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:07:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:35,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:35,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:35,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:07:35,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:35,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-09-25 04:07:35,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:35,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:35,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:35,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:35,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 04:07:35,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:35,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:07:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:35,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:35,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:35,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:35,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:35,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:35,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:35,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:35,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:35,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:35,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:07:35,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:35,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:07:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:35,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:35,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:35,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:35,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:35,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:35,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:35,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:35,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:35,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:35,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:07:35,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:35,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:07:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:35,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:35,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:35,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:35,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:35,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:07:35,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:35,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:35,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:35,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:35,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:07:35,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:35,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:07:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:35,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:35,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:35,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:35,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:35,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:35,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:35,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:35,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:35,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:35,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:07:35,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:35,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 04:07:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:35,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:35,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:35,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:07:35,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:35,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:35,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:35,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:35,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:35,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:35,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:07:35,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:35,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 04:07:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:35,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:35,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:35,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:35,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:35,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:35,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:35,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:35,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:35,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:35,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:07:35,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:35,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 04:07:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:35,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:35,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:35,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:35,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:35,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:07:35,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:35,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:35,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:07:35,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:35,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:07:35,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:35,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 04:07:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:35,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:35,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:35,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:35,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:35,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:35,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:35,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:35,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:35,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:35,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:35,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:35,550 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 04:07:35,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1618524106] [2020-09-25 04:07:35,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:07:35,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:07:35,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605967998] [2020-09-25 04:07:35,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:07:35,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:07:35,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:07:35,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:07:35,555 INFO L87 Difference]: Start difference. First operand 398 states and 443 transitions. Second operand 10 states. [2020-09-25 04:07:36,172 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:07:38,320 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:07:38,704 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:07:39,079 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:07:39,414 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:07:39,766 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:07:40,082 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:07:40,375 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:07:40,870 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:07:41,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:07:41,938 INFO L93 Difference]: Finished difference Result 1069 states and 1326 transitions. [2020-09-25 04:07:41,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 04:07:41,940 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-25 04:07:41,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:07:41,946 INFO L225 Difference]: With dead ends: 1069 [2020-09-25 04:07:41,946 INFO L226 Difference]: Without dead ends: 781 [2020-09-25 04:07:41,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 04:07:41,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2020-09-25 04:07:42,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 657. [2020-09-25 04:07:42,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-09-25 04:07:42,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 756 transitions. [2020-09-25 04:07:42,101 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 756 transitions. Word has length 172 [2020-09-25 04:07:42,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:07:42,102 INFO L479 AbstractCegarLoop]: Abstraction has 657 states and 756 transitions. [2020-09-25 04:07:42,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:07:42,102 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 756 transitions. [2020-09-25 04:07:42,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 04:07:42,113 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:07:42,113 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:07:42,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:07:42,114 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:07:42,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:07:42,115 INFO L82 PathProgramCache]: Analyzing trace with hash 82436204, now seen corresponding path program 1 times [2020-09-25 04:07:42,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:07:42,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685912451] [2020-09-25 04:07:42,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:07:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 04:07:42,187 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 04:07:42,188 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 04:07:42,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:07:42,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:07:42 BoogieIcfgContainer [2020-09-25 04:07:42,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:07:42,233 INFO L168 Benchmark]: Toolchain (without parser) took 35836.20 ms. Allocated memory was 144.2 MB in the beginning and 631.2 MB in the end (delta: 487.1 MB). Free memory was 100.1 MB in the beginning and 564.1 MB in the end (delta: -464.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-09-25 04:07:42,235 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.2 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 04:07:42,238 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.54 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 99.5 MB in the beginning and 172.2 MB in the end (delta: -72.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-09-25 04:07:42,244 INFO L168 Benchmark]: Boogie Preprocessor took 113.53 ms. Allocated memory is still 202.4 MB. Free memory was 172.2 MB in the beginning and 167.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-09-25 04:07:42,244 INFO L168 Benchmark]: RCFGBuilder took 1319.51 ms. Allocated memory was 202.4 MB in the beginning and 230.7 MB in the end (delta: 28.3 MB). Free memory was 167.8 MB in the beginning and 177.7 MB in the end (delta: -9.8 MB). Peak memory consumption was 90.4 MB. Max. memory is 7.1 GB. [2020-09-25 04:07:42,245 INFO L168 Benchmark]: TraceAbstraction took 33625.54 ms. Allocated memory was 230.7 MB in the beginning and 631.2 MB in the end (delta: 400.6 MB). Free memory was 176.2 MB in the beginning and 564.1 MB in the end (delta: -387.9 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2020-09-25 04:07:42,263 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 144.2 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 769.54 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 99.5 MB in the beginning and 172.2 MB in the end (delta: -72.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.53 ms. Allocated memory is still 202.4 MB. Free memory was 172.2 MB in the beginning and 167.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1319.51 ms. Allocated memory was 202.4 MB in the beginning and 230.7 MB in the end (delta: 28.3 MB). Free memory was 167.8 MB in the beginning and 177.7 MB in the end (delta: -9.8 MB). Peak memory consumption was 90.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 33625.54 ms. Allocated memory was 230.7 MB in the beginning and 631.2 MB in the end (delta: 400.6 MB). Free memory was 176.2 MB in the beginning and 564.1 MB in the end (delta: -387.9 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 451]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L185] int pumpRunning = 0; [L186] int systemActive = 1; [L625] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int cleanupTimeShifts = 4; [L895] int retValue_acc ; [L896] int tmp ; [L900] FCALL select_helpers() [L901] FCALL select_features() [L902] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L902] RET, EXPR valid_product() [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) [L906] FCALL setup() [L907] CALL runTest() [L889] CALL test() [L381] int splverifierCounter ; [L382] int tmp ; [L383] int tmp___0 ; [L384] int tmp___1 ; [L385] int tmp___2 ; [L388] splverifierCounter = 0 [L390] COND TRUE 1 [L392] COND TRUE splverifierCounter < 4 [L398] tmp = __VERIFIER_nondet_int() [L400] COND TRUE \read(tmp) [L402] CALL waterRise() [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 [L402] RET waterRise() [L408] tmp___0 = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp___0)) [L418] tmp___2 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___2)) [L424] tmp___1 = __VERIFIER_nondet_int() [L426] COND TRUE \read(tmp___1) [L428] CALL stopSystem() [L367] COND FALSE !(\read(pumpRunning)) [L374] systemActive = 0 [L428] RET stopSystem() [L435] CALL timeShift() [L193] COND FALSE !(\read(pumpRunning)) [L200] COND FALSE !(\read(systemActive)) [L208] CALL __utac_acc__Specification3_spec__1() [L919] int tmp ; [L920] int tmp___0 ; [L921] int tmp___1 ; [L925] CALL, EXPR isMethaneLevelCritical() [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); [L925] RET, EXPR isMethaneLevelCritical() [L925] tmp = isMethaneLevelCritical() [L927] COND FALSE !(\read(tmp)) [L931] CALL, EXPR getWaterLevel() [L156] int retValue_acc ; [L159] retValue_acc = waterLevel [L160] return (retValue_acc); [L931] RET, EXPR getWaterLevel() [L931] tmp___0 = getWaterLevel() [L933] COND TRUE tmp___0 == 2 [L935] CALL, EXPR isPumpRunning() [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] return (retValue_acc); [L935] RET, EXPR isPumpRunning() [L935] tmp___1 = isPumpRunning() [L937] COND FALSE !(\read(tmp___1)) [L941] CALL __automaton_fail() [L451] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 630 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 33.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1030 SDtfs, 1300 SDslu, 826 SDs, 0 SdLazy, 2274 SolverSat, 456 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=657occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 257 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 19.5s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 638 ConstructedInterpolants, 0 QuantifiedInterpolants, 264985 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...