/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 22:00:27,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 22:00:27,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 22:00:27,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 22:00:27,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 22:00:27,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 22:00:27,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 22:00:27,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 22:00:27,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 22:00:27,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 22:00:27,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 22:00:27,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 22:00:27,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 22:00:27,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 22:00:27,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 22:00:27,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 22:00:27,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 22:00:27,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 22:00:27,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 22:00:27,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 22:00:27,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 22:00:27,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 22:00:27,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 22:00:27,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 22:00:27,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 22:00:27,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 22:00:27,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 22:00:27,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 22:00:27,433 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 22:00:27,456 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 22:00:27,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 22:00:27,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 22:00:27,461 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 22:00:27,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 22:00:27,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 22:00:27,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 22:00:27,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 22:00:27,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 22:00:27,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 22:00:27,463 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 22:00:27,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 22:00:27,463 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 22:00:27,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 22:00:27,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 22:00:27,464 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 22:00:27,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 22:00:27,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 22:00:27,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 22:00:27,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 22:00:27,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 22:00:27,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 22:00:27,465 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 22:00:27,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 22:00:27,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 22:00:27,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 22:00:27,918 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 22:00:27,919 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 22:00:27,920 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c [2021-02-23 22:00:28,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b6bb7f35/0019c28077674037b595a6de13d6eb48/FLAGc7875eb5c [2021-02-23 22:00:28,764 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 22:00:28,764 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c [2021-02-23 22:00:28,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b6bb7f35/0019c28077674037b595a6de13d6eb48/FLAGc7875eb5c [2021-02-23 22:00:29,028 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b6bb7f35/0019c28077674037b595a6de13d6eb48 [2021-02-23 22:00:29,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 22:00:29,049 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 22:00:29,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 22:00:29,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 22:00:29,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 22:00:29,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:00:29" (1/1) ... [2021-02-23 22:00:29,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b10667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:29, skipping insertion in model container [2021-02-23 22:00:29,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:00:29" (1/1) ... [2021-02-23 22:00:29,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 22:00:29,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 22:00:29,285 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c[1867,1880] [2021-02-23 22:00:29,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:00:29,405 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 22:00:29,423 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c[1867,1880] [2021-02-23 22:00:29,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:00:29,586 INFO L208 MainTranslator]: Completed translation [2021-02-23 22:00:29,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:29 WrapperNode [2021-02-23 22:00:29,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 22:00:29,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 22:00:29,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 22:00:29,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 22:00:29,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:29" (1/1) ... [2021-02-23 22:00:29,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:29" (1/1) ... [2021-02-23 22:00:29,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:29" (1/1) ... [2021-02-23 22:00:29,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:29" (1/1) ... [2021-02-23 22:00:29,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:29" (1/1) ... [2021-02-23 22:00:29,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:29" (1/1) ... [2021-02-23 22:00:29,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:29" (1/1) ... [2021-02-23 22:00:29,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 22:00:29,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 22:00:29,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 22:00:29,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 22:00:29,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2021-02-23 22:00:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 22:00:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 22:00:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 22:00:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 22:00:29,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 22:00:29,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 22:00:29,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 22:00:29,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 22:00:29,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 22:00:29,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 22:00:29,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 22:00:29,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 22:00:29,878 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 22:00:29,878 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 22:00:29,878 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 22:00:29,878 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 22:00:29,878 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 22:00:29,879 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 22:00:29,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-23 22:00:29,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 22:00:29,882 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 22:00:29,882 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 22:00:29,882 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 22:00:29,882 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 22:00:29,882 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 22:00:29,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 22:00:29,883 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 22:00:29,883 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 22:00:29,883 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 22:00:29,883 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 22:00:29,883 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 22:00:29,884 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2021-02-23 22:00:29,884 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 22:00:29,884 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 22:00:29,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 22:00:29,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 22:00:29,884 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 22:00:29,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-23 22:00:29,884 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 22:00:29,885 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 22:00:29,885 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 22:00:29,885 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 22:00:29,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 22:00:29,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 22:00:29,885 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 22:00:29,885 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 22:00:29,886 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 22:00:29,886 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 22:00:29,886 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 22:00:29,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 22:00:29,886 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 22:00:29,886 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 22:00:29,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 22:00:29,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 22:00:29,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 22:00:29,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 22:00:29,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 22:00:29,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 22:00:29,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 22:00:29,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 22:00:29,887 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 22:00:29,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 22:00:29,888 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 22:00:29,888 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 22:00:29,888 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 22:00:29,888 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 22:00:29,888 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 22:00:29,888 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 22:00:29,888 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 22:00:29,889 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-23 22:00:29,889 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 22:00:29,889 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 22:00:29,889 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 22:00:29,889 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 22:00:29,890 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 22:00:29,890 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 22:00:29,890 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 22:00:29,890 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 22:00:29,891 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 22:00:29,891 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 22:00:29,891 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 22:00:29,891 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 22:00:29,892 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 22:00:29,892 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 22:00:29,892 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 22:00:29,893 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 22:00:29,893 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-23 22:00:29,893 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2021-02-23 22:00:29,894 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 22:00:29,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 22:00:29,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 22:00:29,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 22:00:31,569 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 22:00:31,569 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 22:00:31,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:00:31 BoogieIcfgContainer [2021-02-23 22:00:31,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 22:00:31,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 22:00:31,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 22:00:31,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 22:00:31,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 10:00:29" (1/3) ... [2021-02-23 22:00:31,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d66f549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:00:31, skipping insertion in model container [2021-02-23 22:00:31,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:29" (2/3) ... [2021-02-23 22:00:31,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d66f549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:00:31, skipping insertion in model container [2021-02-23 22:00:31,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:00:31" (3/3) ... [2021-02-23 22:00:31,581 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product25.cil.c [2021-02-23 22:00:31,588 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 22:00:31,593 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 22:00:31,612 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 22:00:31,635 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 22:00:31,635 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 22:00:31,636 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 22:00:31,636 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 22:00:31,636 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 22:00:31,636 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 22:00:31,636 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 22:00:31,636 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 22:00:31,658 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2021-02-23 22:00:31,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-23 22:00:31,679 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:00:31,680 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] [2021-02-23 22:00:31,680 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:00:31,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:00:31,686 INFO L82 PathProgramCache]: Analyzing trace with hash 375322265, now seen corresponding path program 1 times [2021-02-23 22:00:31,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:00:31,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1293121917] [2021-02-23 22:00:31,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:00:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:32,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:32,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:32,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:32,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:32,769 WARN L202 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:00:32,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:00:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:32,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:32,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:32,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:00:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:32,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:32,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:32,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:00:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:32,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:32,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:32,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:00:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:32,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:32,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:32,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:00:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:32,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:32,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:32,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 22:00:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:32,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:32,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:32,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 22:00:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:32,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:32,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:32,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 22:00:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:32,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:32,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:32,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:00:32,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1293121917] [2021-02-23 22:00:32,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:00:32,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 22:00:32,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276539405] [2021-02-23 22:00:32,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 22:00:32,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:00:33,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 22:00:33,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 22:00:33,013 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 3 states. [2021-02-23 22:00:35,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:00:35,120 INFO L93 Difference]: Finished difference Result 441 states and 523 transitions. [2021-02-23 22:00:35,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 22:00:35,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-23 22:00:35,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:00:35,139 INFO L225 Difference]: With dead ends: 441 [2021-02-23 22:00:35,139 INFO L226 Difference]: Without dead ends: 279 [2021-02-23 22:00:35,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 22:00:35,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-02-23 22:00:35,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 240. [2021-02-23 22:00:35,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2021-02-23 22:00:35,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 258 transitions. [2021-02-23 22:00:35,299 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 258 transitions. Word has length 158 [2021-02-23 22:00:35,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:00:35,302 INFO L480 AbstractCegarLoop]: Abstraction has 240 states and 258 transitions. [2021-02-23 22:00:35,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 22:00:35,303 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 258 transitions. [2021-02-23 22:00:35,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-23 22:00:35,317 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:00:35,318 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] [2021-02-23 22:00:35,318 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 22:00:35,318 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:00:35,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:00:35,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1828143069, now seen corresponding path program 1 times [2021-02-23 22:00:35,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:00:35,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145192842] [2021-02-23 22:00:35,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:00:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:35,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:35,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:35,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:35,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:35,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:35,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:36,159 WARN L202 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:00:36,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:00:36,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:36,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:36,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:36,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:00:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:36,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:36,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:36,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:00:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:36,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:36,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:36,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:00:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:36,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:36,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:36,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:00:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:36,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:36,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:36,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 22:00:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:36,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:36,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:36,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 22:00:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:36,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:36,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:36,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 22:00:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:36,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:36,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:36,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:00:36,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145192842] [2021-02-23 22:00:36,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:00:36,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 22:00:36,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851614287] [2021-02-23 22:00:36,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 22:00:36,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:00:36,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 22:00:36,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 22:00:36,274 INFO L87 Difference]: Start difference. First operand 240 states and 258 transitions. Second operand 4 states. [2021-02-23 22:00:37,510 WARN L202 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:00:38,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:00:38,817 INFO L93 Difference]: Finished difference Result 357 states and 397 transitions. [2021-02-23 22:00:38,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 22:00:38,818 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-23 22:00:38,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:00:38,822 INFO L225 Difference]: With dead ends: 357 [2021-02-23 22:00:38,822 INFO L226 Difference]: Without dead ends: 262 [2021-02-23 22:00:38,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 22:00:38,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-02-23 22:00:38,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 230. [2021-02-23 22:00:38,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2021-02-23 22:00:38,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 245 transitions. [2021-02-23 22:00:38,942 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 245 transitions. Word has length 159 [2021-02-23 22:00:38,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:00:38,943 INFO L480 AbstractCegarLoop]: Abstraction has 230 states and 245 transitions. [2021-02-23 22:00:38,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 22:00:38,943 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 245 transitions. [2021-02-23 22:00:38,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-02-23 22:00:38,946 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:00:38,946 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] [2021-02-23 22:00:38,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 22:00:38,947 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:00:38,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:00:38,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1762567636, now seen corresponding path program 1 times [2021-02-23 22:00:38,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:00:38,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058987739] [2021-02-23 22:00:38,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:00:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:39,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:39,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:39,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:39,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:39,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:39,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:39,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:39,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:00:39,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:39,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:39,715 WARN L202 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:00:39,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:00:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:39,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:39,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:39,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:39,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 22:00:39,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:00:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:39,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:39,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:39,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:00:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:39,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:39,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:39,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:00:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:39,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:39,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:39,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:39,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:00:39,831 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-23 22:00:39,833 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-23 22:00:39,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:00:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:39,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:39,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:39,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 22:00:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:39,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:39,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:39,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 22:00:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:39,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:39,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:39,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-02-23 22:00:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:39,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:39,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:39,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:00:39,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058987739] [2021-02-23 22:00:39,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:00:39,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 22:00:39,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446586126] [2021-02-23 22:00:39,923 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 22:00:39,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:00:39,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 22:00:39,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 22:00:39,925 INFO L87 Difference]: Start difference. First operand 230 states and 245 transitions. Second operand 9 states. [2021-02-23 22:00:40,968 WARN L202 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:00:41,817 WARN L202 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 22:00:42,533 WARN L202 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 22:00:43,257 WARN L202 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:00:43,983 WARN L202 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:00:44,677 WARN L202 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:00:46,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:00:46,651 INFO L93 Difference]: Finished difference Result 377 states and 422 transitions. [2021-02-23 22:00:46,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 22:00:46,652 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2021-02-23 22:00:46,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:00:46,655 INFO L225 Difference]: With dead ends: 377 [2021-02-23 22:00:46,656 INFO L226 Difference]: Without dead ends: 262 [2021-02-23 22:00:46,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-02-23 22:00:46,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-02-23 22:00:46,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 230. [2021-02-23 22:00:46,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2021-02-23 22:00:46,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 244 transitions. [2021-02-23 22:00:46,759 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 244 transitions. Word has length 168 [2021-02-23 22:00:46,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:00:46,759 INFO L480 AbstractCegarLoop]: Abstraction has 230 states and 244 transitions. [2021-02-23 22:00:46,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 22:00:46,760 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 244 transitions. [2021-02-23 22:00:46,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-02-23 22:00:46,762 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:00:46,763 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] [2021-02-23 22:00:46,763 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 22:00:46,763 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:00:46,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:00:46,764 INFO L82 PathProgramCache]: Analyzing trace with hash -745615343, now seen corresponding path program 1 times [2021-02-23 22:00:46,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:00:46,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608000515] [2021-02-23 22:00:46,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:00:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:46,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:46,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:46,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:46,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:46,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:46,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:46,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:46,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:46,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:46,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:46,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:46,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:46,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:46,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:46,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:46,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:47,474 WARN L202 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:00:47,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:00:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:47,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:47,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:47,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:47,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 22:00:47,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:00:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:47,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:47,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:47,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:00:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:47,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:47,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:47,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:00:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:47,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:47,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:47,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:00:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:47,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:47,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:47,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-23 22:00:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:47,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:47,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:47,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 22:00:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:47,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:47,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:47,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-23 22:00:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:47,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:47,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:47,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-23 22:00:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:47,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:47,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:47,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:47,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:47,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:47,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:47,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-02-23 22:00:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:47,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:47,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:47,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:00:47,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608000515] [2021-02-23 22:00:47,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:00:47,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 22:00:47,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392057576] [2021-02-23 22:00:47,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 22:00:47,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:00:47,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 22:00:47,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 22:00:47,673 INFO L87 Difference]: Start difference. First operand 230 states and 244 transitions. Second operand 9 states. [2021-02-23 22:00:48,651 WARN L202 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:00:51,356 WARN L202 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:00:52,132 WARN L202 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:00:52,953 WARN L202 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:00:53,748 WARN L202 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:00:54,454 WARN L202 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:00:55,237 WARN L202 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:00:55,934 WARN L202 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:00:57,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:00:57,138 INFO L93 Difference]: Finished difference Result 527 states and 618 transitions. [2021-02-23 22:00:57,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 22:00:57,140 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2021-02-23 22:00:57,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:00:57,145 INFO L225 Difference]: With dead ends: 527 [2021-02-23 22:00:57,145 INFO L226 Difference]: Without dead ends: 412 [2021-02-23 22:00:57,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 22:00:57,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-02-23 22:00:57,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 337. [2021-02-23 22:00:57,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2021-02-23 22:00:57,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 368 transitions. [2021-02-23 22:00:57,274 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 368 transitions. Word has length 176 [2021-02-23 22:00:57,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:00:57,274 INFO L480 AbstractCegarLoop]: Abstraction has 337 states and 368 transitions. [2021-02-23 22:00:57,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 22:00:57,275 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 368 transitions. [2021-02-23 22:00:57,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-02-23 22:00:57,278 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:00:57,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:00:57,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 22:00:57,278 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:00:57,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:00:57,279 INFO L82 PathProgramCache]: Analyzing trace with hash 562380444, now seen corresponding path program 1 times [2021-02-23 22:00:57,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:00:57,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477205474] [2021-02-23 22:00:57,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:00:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:00:57,363 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:00:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:00:57,435 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:00:57,640 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 22:00:57,640 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 22:00:57,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 22:00:57,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 10:00:57 BoogieIcfgContainer [2021-02-23 22:00:57,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 22:00:57,866 INFO L168 Benchmark]: Toolchain (without parser) took 28830.51 ms. Allocated memory was 153.1 MB in the beginning and 434.1 MB in the end (delta: 281.0 MB). Free memory was 128.5 MB in the beginning and 370.1 MB in the end (delta: -241.6 MB). Peak memory consumption was 263.6 MB. Max. memory is 8.0 GB. [2021-02-23 22:00:57,866 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 153.1 MB. Free memory is still 127.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:00:57,867 INFO L168 Benchmark]: CACSL2BoogieTranslator took 532.62 ms. Allocated memory is still 153.1 MB. Free memory was 127.3 MB in the beginning and 106.6 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-23 22:00:57,868 INFO L168 Benchmark]: Boogie Preprocessor took 141.71 ms. Allocated memory is still 153.1 MB. Free memory was 106.6 MB in the beginning and 102.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-23 22:00:57,868 INFO L168 Benchmark]: RCFGBuilder took 1841.92 ms. Allocated memory was 153.1 MB in the beginning and 200.3 MB in the end (delta: 47.2 MB). Free memory was 102.7 MB in the beginning and 133.5 MB in the end (delta: -30.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2021-02-23 22:00:57,869 INFO L168 Benchmark]: TraceAbstraction took 26290.16 ms. Allocated memory was 200.3 MB in the beginning and 434.1 MB in the end (delta: 233.8 MB). Free memory was 133.0 MB in the beginning and 370.1 MB in the end (delta: -237.1 MB). Peak memory consumption was 220.6 MB. Max. memory is 8.0 GB. [2021-02-23 22:00:57,872 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 153.1 MB. Free memory is still 127.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 532.62 ms. Allocated memory is still 153.1 MB. Free memory was 127.3 MB in the beginning and 106.6 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 141.71 ms. Allocated memory is still 153.1 MB. Free memory was 106.6 MB in the beginning and 102.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1841.92 ms. Allocated memory was 153.1 MB in the beginning and 200.3 MB in the end (delta: 47.2 MB). Free memory was 102.7 MB in the beginning and 133.5 MB in the end (delta: -30.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 26290.16 ms. Allocated memory was 200.3 MB in the beginning and 434.1 MB in the end (delta: 233.8 MB). Free memory was 133.0 MB in the beginning and 370.1 MB in the end (delta: -237.1 MB). Peak memory consumption was 220.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 84]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L258] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=142, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=147, pumpRunning=140, systemActive=139, waterLevel=142] [L460] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=167, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=142, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=147, pumpRunning=140, systemActive=139, waterLevel=1] [L461] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=142, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=0, pumpRunning=140, systemActive=139, waterLevel=1] [L587] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=140, systemActive=139, waterLevel=1] [L688] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=167, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=139, waterLevel=1] [L689] int systemActive = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=167, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L663] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L664] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L668] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L669] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L670] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L578] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L581] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L582] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L670] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L670] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L672] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L674] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L675] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L657] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L860] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L863] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L866] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L868] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L870] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L876] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L878] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L880] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L478] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L479] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L880] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L886] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L888] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L896] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L898] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L911] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L695] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L702] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L704] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L724] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L727] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L742] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L704] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L710] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L47] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L48] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L49] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L53] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L499] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L502] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L503] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L53] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L53] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L55] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L59] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L531] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L534] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L535] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L59] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L59] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L61] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L63] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L794] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L797] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L798] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L63] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L63] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L65] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L69] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L84] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 627 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 20.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 878 SDtfs, 1044 SDslu, 1175 SDs, 0 SdLazy, 2277 SolverSat, 317 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 12.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=337occurred 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, 178 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 842 NumberOfCodeBlocks, 842 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 657 ConstructedInterpolants, 0 QuantifiedInterpolants, 280870 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...