/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 17:04:11,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:04:11,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:04:11,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 17:04:11,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 17:04:11,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 17:04:11,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 17:04:11,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 17:04:11,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 17:04:12,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 17:04:12,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 17:04:12,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 17:04:12,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:04:12,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:04:12,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:04:12,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:04:12,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:04:12,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:04:12,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:04:12,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:04:12,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:04:12,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:04:12,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:04:12,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:04:12,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 17:04:12,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 17:04:12,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 17:04:12,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 17:04:12,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 17:04:12,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-19 17:04:12,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 17:04:12,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 17:04:12,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 17:04:12,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 17:04:12,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 17:04:12,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 17:04:12,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 17:04:12,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 17:04:12,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:04:12,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:04:12,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:04:12,063 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-19 17:04:12,115 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:04:12,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:04:12,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:04:12,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:04:12,120 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:04:12,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:04:12,120 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:04:12,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:04:12,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:04:12,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:04:12,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:04:12,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:04:12,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:04:12,123 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:04:12,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:04:12,124 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:04:12,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:04:12,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:04:12,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:04:12,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:04:12,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:04:12,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:04:12,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:04:12,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:04:12,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:04:12,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:04:12,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:04:12,127 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 17:04:12,127 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:04:12,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:04:12,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:04:12,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:04:12,608 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 17:04:12,609 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 17:04:12,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c [2021-02-19 17:04:12,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03fb1b68d/176b6d0d181b4e54a36e51d51f71f722/FLAGfcf697ffb [2021-02-19 17:04:13,279 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 17:04:13,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c [2021-02-19 17:04:13,311 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03fb1b68d/176b6d0d181b4e54a36e51d51f71f722/FLAGfcf697ffb [2021-02-19 17:04:13,580 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03fb1b68d/176b6d0d181b4e54a36e51d51f71f722 [2021-02-19 17:04:13,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:04:13,599 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:04:13,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 17:04:13,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 17:04:13,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 17:04:13,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:04:13" (1/1) ... [2021-02-19 17:04:13,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@282cd639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:13, skipping insertion in model container [2021-02-19 17:04:13,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:04:13" (1/1) ... [2021-02-19 17:04:13,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 17:04:13,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 17:04:13,916 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_product19.cil.c[1281,1294] [2021-02-19 17:04:14,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:04:14,082 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 17:04:14,098 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_product19.cil.c[1281,1294] [2021-02-19 17:04:14,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:04:14,234 INFO L208 MainTranslator]: Completed translation [2021-02-19 17:04:14,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:14 WrapperNode [2021-02-19 17:04:14,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 17:04:14,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:04:14,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:04:14,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:04:14,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:14" (1/1) ... [2021-02-19 17:04:14,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:14" (1/1) ... [2021-02-19 17:04:14,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:14" (1/1) ... [2021-02-19 17:04:14,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:14" (1/1) ... [2021-02-19 17:04:14,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:14" (1/1) ... [2021-02-19 17:04:14,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:14" (1/1) ... [2021-02-19 17:04:14,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:14" (1/1) ... [2021-02-19 17:04:14,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:04:14,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:04:14,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:04:14,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:04:14,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:14" (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 [2021-02-19 17:04:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 17:04:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:04:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-19 17:04:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 17:04:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-19 17:04:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-19 17:04:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-19 17:04:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-19 17:04:14,507 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-19 17:04:14,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-19 17:04:14,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-19 17:04:14,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-19 17:04:14,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-19 17:04:14,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-19 17:04:14,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-19 17:04:14,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-19 17:04:14,511 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-19 17:04:14,511 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-19 17:04:14,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-19 17:04:14,512 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-19 17:04:14,512 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 17:04:14,512 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-19 17:04:14,517 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-19 17:04:14,517 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-19 17:04:14,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-19 17:04:14,518 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-19 17:04:14,519 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-19 17:04:14,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-19 17:04:14,519 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-19 17:04:14,519 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-19 17:04:14,519 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-19 17:04:14,519 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-19 17:04:14,519 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-19 17:04:14,520 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-19 17:04:14,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-19 17:04:14,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-19 17:04:14,520 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-19 17:04:14,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-19 17:04:14,520 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-19 17:04:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 17:04:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 17:04:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 17:04:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 17:04:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 17:04:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-19 17:04:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-19 17:04:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-19 17:04:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-19 17:04:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-19 17:04:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-19 17:04:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-19 17:04:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-19 17:04:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-19 17:04:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-19 17:04:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-19 17:04:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-19 17:04:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-19 17:04:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-19 17:04:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-19 17:04:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 17:04:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-19 17:04:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-19 17:04:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 17:04:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-19 17:04:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-19 17:04:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 17:04:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-19 17:04:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-19 17:04:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-19 17:04:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-19 17:04:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-19 17:04:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-19 17:04:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-19 17:04:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-19 17:04:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-19 17:04:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-19 17:04:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-19 17:04:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-19 17:04:14,528 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 17:04:14,528 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-19 17:04:14,528 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-19 17:04:14,528 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-19 17:04:14,528 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-19 17:04:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-19 17:04:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-19 17:04:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-19 17:04:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-19 17:04:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-19 17:04:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-19 17:04:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 17:04:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 17:04:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:04:15,657 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 17:04:15,657 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-19 17:04:15,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:04:15 BoogieIcfgContainer [2021-02-19 17:04:15,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 17:04:15,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 17:04:15,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 17:04:15,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 17:04:15,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:04:13" (1/3) ... [2021-02-19 17:04:15,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e78f500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:04:15, skipping insertion in model container [2021-02-19 17:04:15,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:14" (2/3) ... [2021-02-19 17:04:15,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e78f500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:04:15, skipping insertion in model container [2021-02-19 17:04:15,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:04:15" (3/3) ... [2021-02-19 17:04:15,670 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product19.cil.c [2021-02-19 17:04:15,682 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 17:04:15,687 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 17:04:15,707 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 17:04:15,749 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 17:04:15,749 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 17:04:15,749 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 17:04:15,749 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 17:04:15,750 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 17:04:15,750 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 17:04:15,751 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 17:04:15,752 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 17:04:15,781 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2021-02-19 17:04:15,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-19 17:04:15,797 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:15,798 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] [2021-02-19 17:04:15,799 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:15,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:15,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1912486321, now seen corresponding path program 1 times [2021-02-19 17:04:15,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:15,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845108848] [2021-02-19 17:04:15,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:16,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:16,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:16,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:16,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:16,507 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:04:16,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:04:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:16,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:16,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:16,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:04:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:16,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:16,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:16,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:04:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:16,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:16,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:16,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:04:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:16,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:16,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:16,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:04:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:16,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:16,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:16,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 17:04:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:16,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:16,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:16,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-19 17:04:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:16,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:16,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:16,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-19 17:04:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:16,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:16,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:16,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:04:16,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845108848] [2021-02-19 17:04:16,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:04:16,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 17:04:16,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397524055] [2021-02-19 17:04:16,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 17:04:16,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:04:16,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 17:04:16,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:04:16,656 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 3 states. [2021-02-19 17:04:17,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:04:17,892 INFO L93 Difference]: Finished difference Result 273 states and 360 transitions. [2021-02-19 17:04:17,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 17:04:17,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-02-19 17:04:17,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:04:17,907 INFO L225 Difference]: With dead ends: 273 [2021-02-19 17:04:17,907 INFO L226 Difference]: Without dead ends: 148 [2021-02-19 17:04:17,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:04:17,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-02-19 17:04:18,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 116. [2021-02-19 17:04:18,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2021-02-19 17:04:18,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 136 transitions. [2021-02-19 17:04:18,012 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 136 transitions. Word has length 52 [2021-02-19 17:04:18,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:04:18,012 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 136 transitions. [2021-02-19 17:04:18,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-19 17:04:18,013 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 136 transitions. [2021-02-19 17:04:18,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-19 17:04:18,016 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:18,016 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] [2021-02-19 17:04:18,016 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 17:04:18,017 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:18,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:18,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1093565257, now seen corresponding path program 1 times [2021-02-19 17:04:18,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:18,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487350131] [2021-02-19 17:04:18,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:18,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:18,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:18,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:18,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:18,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:18,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:18,502 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:04:18,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:04:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:18,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:18,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:18,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:04:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:18,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:18,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:18,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:04:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:18,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:18,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:18,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:04:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:18,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:18,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:18,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:04:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:18,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:18,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:18,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 17:04:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:18,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:18,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:18,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-19 17:04:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:18,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:18,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:18,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-19 17:04:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:18,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:18,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:18,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:04:18,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487350131] [2021-02-19 17:04:18,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:04:18,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:04:18,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952474659] [2021-02-19 17:04:18,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:04:18,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:04:18,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:04:18,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:04:18,588 INFO L87 Difference]: Start difference. First operand 116 states and 136 transitions. Second operand 4 states. [2021-02-19 17:04:19,161 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:04:19,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:04:19,923 INFO L93 Difference]: Finished difference Result 200 states and 243 transitions. [2021-02-19 17:04:19,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 17:04:19,924 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-19 17:04:19,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:04:19,926 INFO L225 Difference]: With dead ends: 200 [2021-02-19 17:04:19,926 INFO L226 Difference]: Without dead ends: 132 [2021-02-19 17:04:19,928 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 17:04:19,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-02-19 17:04:19,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 107. [2021-02-19 17:04:19,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2021-02-19 17:04:19,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 124 transitions. [2021-02-19 17:04:19,974 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 124 transitions. Word has length 53 [2021-02-19 17:04:19,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:04:19,978 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 124 transitions. [2021-02-19 17:04:19,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:04:19,978 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 124 transitions. [2021-02-19 17:04:19,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-19 17:04:19,981 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:19,981 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] [2021-02-19 17:04:19,981 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 17:04:19,981 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:19,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:19,982 INFO L82 PathProgramCache]: Analyzing trace with hash 728646559, now seen corresponding path program 1 times [2021-02-19 17:04:19,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:19,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482296526] [2021-02-19 17:04:19,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:20,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:20,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:20,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:20,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:20,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:20,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:20,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:20,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:20,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:20,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:04:20,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:20,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:04:20,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:20,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:04:20,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:20,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:20,466 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:04:20,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:04:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:20,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:20,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:04:20,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:04:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:20,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:20,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:20,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:04:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:20,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:20,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:20,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:04:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:20,533 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-19 17:04:20,536 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-19 17:04:20,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:04:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:20,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:20,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:20,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 17:04:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:20,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:20,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:20,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-19 17:04:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:20,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:20,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:20,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-19 17:04:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:20,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:20,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:20,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:04:20,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482296526] [2021-02-19 17:04:20,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:04:20,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:04:20,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442172049] [2021-02-19 17:04:20,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:04:20,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:04:20,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:04:20,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:04:20,600 INFO L87 Difference]: Start difference. First operand 107 states and 124 transitions. Second operand 8 states. [2021-02-19 17:04:21,121 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:04:21,582 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:21,985 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:22,348 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:23,240 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:04:25,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:04:25,001 INFO L93 Difference]: Finished difference Result 375 states and 465 transitions. [2021-02-19 17:04:25,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 17:04:25,002 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2021-02-19 17:04:25,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:04:25,006 INFO L225 Difference]: With dead ends: 375 [2021-02-19 17:04:25,006 INFO L226 Difference]: Without dead ends: 292 [2021-02-19 17:04:25,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-02-19 17:04:25,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-02-19 17:04:25,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 238. [2021-02-19 17:04:25,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2021-02-19 17:04:25,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 287 transitions. [2021-02-19 17:04:25,120 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 287 transitions. Word has length 57 [2021-02-19 17:04:25,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:04:25,121 INFO L480 AbstractCegarLoop]: Abstraction has 238 states and 287 transitions. [2021-02-19 17:04:25,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:04:25,121 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 287 transitions. [2021-02-19 17:04:25,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-19 17:04:25,124 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:25,124 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] [2021-02-19 17:04:25,125 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 17:04:25,125 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:25,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:25,126 INFO L82 PathProgramCache]: Analyzing trace with hash -77990101, now seen corresponding path program 1 times [2021-02-19 17:04:25,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:25,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458527351] [2021-02-19 17:04:25,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:25,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:25,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:25,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:25,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:25,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:25,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:25,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:25,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:25,630 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:04:25,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:04:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:25,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:04:25,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:04:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:25,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:25,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:04:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:25,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:25,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:04:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:25,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:25,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:04:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:25,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:25,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 17:04:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:25,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:25,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-19 17:04:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:25,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:25,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-19 17:04:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:25,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:25,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 17:04:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:25,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:25,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:04:25,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458527351] [2021-02-19 17:04:25,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:04:25,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:04:25,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949475628] [2021-02-19 17:04:25,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:04:25,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:04:25,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:04:25,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:04:25,730 INFO L87 Difference]: Start difference. First operand 238 states and 287 transitions. Second operand 8 states. [2021-02-19 17:04:26,296 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:04:27,946 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:28,409 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:28,822 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:29,210 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:04:30,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:04:30,043 INFO L93 Difference]: Finished difference Result 726 states and 953 transitions. [2021-02-19 17:04:30,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 17:04:30,044 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2021-02-19 17:04:30,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:04:30,050 INFO L225 Difference]: With dead ends: 726 [2021-02-19 17:04:30,050 INFO L226 Difference]: Without dead ends: 512 [2021-02-19 17:04:30,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-02-19 17:04:30,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-02-19 17:04:30,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 449. [2021-02-19 17:04:30,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2021-02-19 17:04:30,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 555 transitions. [2021-02-19 17:04:30,209 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 555 transitions. Word has length 63 [2021-02-19 17:04:30,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:04:30,210 INFO L480 AbstractCegarLoop]: Abstraction has 449 states and 555 transitions. [2021-02-19 17:04:30,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:04:30,210 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 555 transitions. [2021-02-19 17:04:30,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-02-19 17:04:30,214 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:30,214 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] [2021-02-19 17:04:30,214 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 17:04:30,214 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:30,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:30,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1171810127, now seen corresponding path program 1 times [2021-02-19 17:04:30,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:30,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573155276] [2021-02-19 17:04:30,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:04:30,291 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:04:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:04:30,362 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:04:30,443 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-19 17:04:30,444 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-19 17:04:30,444 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 17:04:30,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:04:30 BoogieIcfgContainer [2021-02-19 17:04:30,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 17:04:30,573 INFO L168 Benchmark]: Toolchain (without parser) took 16986.11 ms. Allocated memory was 155.2 MB in the beginning and 389.0 MB in the end (delta: 233.8 MB). Free memory was 129.4 MB in the beginning and 171.7 MB in the end (delta: -42.3 MB). Peak memory consumption was 192.0 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:30,573 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 155.2 MB. Free memory is still 126.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:04:30,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 631.81 ms. Allocated memory is still 155.2 MB. Free memory was 128.4 MB in the beginning and 107.6 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:30,574 INFO L168 Benchmark]: Boogie Preprocessor took 153.16 ms. Allocated memory is still 155.2 MB. Free memory was 107.6 MB in the beginning and 103.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:30,578 INFO L168 Benchmark]: RCFGBuilder took 1267.79 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 103.7 MB in the beginning and 166.6 MB in the end (delta: -62.9 MB). Peak memory consumption was 57.1 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:30,578 INFO L168 Benchmark]: TraceAbstraction took 14910.44 ms. Allocated memory was 186.6 MB in the beginning and 389.0 MB in the end (delta: 202.4 MB). Free memory was 166.1 MB in the beginning and 171.7 MB in the end (delta: -5.6 MB). Peak memory consumption was 196.7 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:30,581 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 155.2 MB. Free memory is still 126.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 631.81 ms. Allocated memory is still 155.2 MB. Free memory was 128.4 MB in the beginning and 107.6 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 153.16 ms. Allocated memory is still 155.2 MB. Free memory was 107.6 MB in the beginning and 103.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1267.79 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 103.7 MB in the beginning and 166.6 MB in the end (delta: -62.9 MB). Peak memory consumption was 57.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 14910.44 ms. Allocated memory was 186.6 MB in the beginning and 389.0 MB in the end (delta: 202.4 MB). Free memory was 166.1 MB in the beginning and 171.7 MB in the end (delta: -5.6 MB). Peak memory consumption was 196.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L295] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L492] int cleanupTimeShifts = 4; [L596] int waterLevel = 1; [L597] int methaneLevelCritical = 0; [L755] int pumpRunning = 0; [L756] int systemActive = 1; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=145, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L570] int retValue_acc ; [L571] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L575] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L576] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L577] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L577] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L577] tmp = valid_product() [L579] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L581] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L582] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L564] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L687] int splverifierCounter ; [L688] int tmp ; [L689] int tmp___0 ; [L690] int tmp___1 ; [L691] int tmp___2 ; [L694] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L696] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L698] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L704] tmp = __VERIFIER_nondet_int() [L706] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L708] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L614] COND TRUE waterLevel < 2 [L615] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L708] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L714] tmp___0 = __VERIFIER_nondet_int() [L716] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L724] tmp___2 = __VERIFIER_nondet_int() [L726] COND FALSE !(\read(tmp___2)) [L730] tmp___1 = __VERIFIER_nondet_int() [L732] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L734] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L910] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L917] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L734] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L741] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L762] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L769] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L777] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L93] int tmp ; [L94] int tmp___0 ; [L95] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L99] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L635] int retValue_acc ; [L638] retValue_acc = methaneLevelCritical [L639] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L99] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L99] tmp = isMethaneLevelCritical() [L101] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L105] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L667] int retValue_acc ; [L670] retValue_acc = waterLevel [L671] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L105] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L105] tmp___0 = getWaterLevel() [L107] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L109] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L843] int retValue_acc ; [L846] retValue_acc = pumpRunning [L847] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L109] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L109] tmp___1 = isPumpRunning() [L111] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L115] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L46] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 226 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 433 SDtfs, 678 SDslu, 311 SDs, 0 SdLazy, 1674 SolverSat, 406 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=449occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 174 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 65502 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...