/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 11:31:54,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 11:31:54,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 11:31:54,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 11:31:54,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 11:31:54,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 11:31:54,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 11:31:54,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 11:31:54,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 11:31:54,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 11:31:54,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 11:31:54,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 11:31:54,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 11:31:54,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 11:31:54,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 11:31:54,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 11:31:54,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 11:31:54,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 11:31:54,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 11:31:54,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 11:31:54,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 11:31:54,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 11:31:54,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 11:31:54,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 11:31:54,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 11:31:54,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 11:31:54,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 11:31:54,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 11:31:54,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 11:31:54,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 11:31:54,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 11:31:54,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 11:31:54,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 11:31:54,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 11:31:54,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 11:31:54,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 11:31:54,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 11:31:54,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 11:31:54,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 11:31:54,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 11:31:54,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 11:31:54,405 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 [2020-07-17 11:31:54,420 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 11:31:54,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 11:31:54,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 11:31:54,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 11:31:54,421 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 11:31:54,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 11:31:54,422 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 11:31:54,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 11:31:54,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 11:31:54,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 11:31:54,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 11:31:54,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 11:31:54,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 11:31:54,423 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 11:31:54,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 11:31:54,424 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 11:31:54,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 11:31:54,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 11:31:54,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 11:31:54,424 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 11:31:54,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 11:31:54,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 11:31:54,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 11:31:54,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 11:31:54,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 11:31:54,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 11:31:54,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 11:31:54,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 11:31:54,426 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 11:31:54,426 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 11:31:54,730 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 11:31:54,745 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 11:31:54,749 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 11:31:54,751 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 11:31:54,751 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 11:31:54,752 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c [2020-07-17 11:31:54,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac3392d7/822fa061e32e40058f613eb9d78d6fce/FLAGc05b56cb7 [2020-07-17 11:31:55,358 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 11:31:55,358 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c [2020-07-17 11:31:55,370 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac3392d7/822fa061e32e40058f613eb9d78d6fce/FLAGc05b56cb7 [2020-07-17 11:31:55,673 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac3392d7/822fa061e32e40058f613eb9d78d6fce [2020-07-17 11:31:55,682 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 11:31:55,684 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 11:31:55,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 11:31:55,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 11:31:55,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 11:31:55,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:31:55" (1/1) ... [2020-07-17 11:31:55,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50229795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:55, skipping insertion in model container [2020-07-17 11:31:55,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:31:55" (1/1) ... [2020-07-17 11:31:55,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 11:31:55,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 11:31:56,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:31:56,216 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 11:31:56,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:31:56,349 INFO L208 MainTranslator]: Completed translation [2020-07-17 11:31:56,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:56 WrapperNode [2020-07-17 11:31:56,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 11:31:56,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 11:31:56,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 11:31:56,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 11:31:56,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:56" (1/1) ... [2020-07-17 11:31:56,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:56" (1/1) ... [2020-07-17 11:31:56,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:56" (1/1) ... [2020-07-17 11:31:56,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:56" (1/1) ... [2020-07-17 11:31:56,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:56" (1/1) ... [2020-07-17 11:31:56,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:56" (1/1) ... [2020-07-17 11:31:56,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:56" (1/1) ... [2020-07-17 11:31:56,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 11:31:56,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 11:31:56,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 11:31:56,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 11:31:56,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:56" (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 [2020-07-17 11:31:56,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 11:31:56,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 11:31:56,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 11:31:56,508 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 11:31:56,508 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 11:31:56,508 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 11:31:56,508 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 11:31:56,509 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 11:31:56,509 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 11:31:56,509 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 11:31:56,509 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 11:31:56,510 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 11:31:56,510 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 11:31:56,510 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 11:31:56,511 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-17 11:31:56,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 11:31:56,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 11:31:56,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 11:31:56,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 11:31:56,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 11:31:56,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 11:31:56,512 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 11:31:56,513 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-17 11:31:56,513 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 11:31:56,513 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 11:31:56,514 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 11:31:56,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 11:31:56,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 11:31:56,515 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 11:31:56,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-17 11:31:56,515 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-17 11:31:56,515 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 11:31:56,515 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 11:31:56,515 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 11:31:56,515 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 11:31:56,515 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 11:31:56,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-17 11:31:56,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 11:31:56,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 11:31:56,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 11:31:56,516 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 11:31:56,517 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 11:31:56,517 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 11:31:56,517 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 11:31:56,517 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 11:31:56,517 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 11:31:56,517 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 11:31:56,517 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 11:31:56,518 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 11:31:56,518 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 11:31:56,518 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 11:31:56,518 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 11:31:56,518 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 11:31:56,519 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 11:31:56,519 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 11:31:56,519 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 11:31:56,520 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 11:31:56,520 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 11:31:56,520 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-17 11:31:56,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 11:31:56,520 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 11:31:56,520 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 11:31:56,520 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 11:31:56,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 11:31:56,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 11:31:56,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 11:31:56,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 11:31:56,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 11:31:56,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 11:31:56,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 11:31:56,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 11:31:56,521 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 11:31:56,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 11:31:56,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 11:31:56,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 11:31:56,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 11:31:56,522 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 11:31:56,522 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 11:31:56,522 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 11:31:56,522 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-17 11:31:56,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-17 11:31:56,523 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 11:31:56,523 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-17 11:31:56,523 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-17 11:31:56,523 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 11:31:56,523 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 11:31:56,523 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 11:31:56,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 11:31:56,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 11:31:56,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 11:31:57,619 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 11:31:57,619 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 11:31:57,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:31:57 BoogieIcfgContainer [2020-07-17 11:31:57,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 11:31:57,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 11:31:57,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 11:31:57,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 11:31:57,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 11:31:55" (1/3) ... [2020-07-17 11:31:57,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2750ddbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:31:57, skipping insertion in model container [2020-07-17 11:31:57,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:56" (2/3) ... [2020-07-17 11:31:57,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2750ddbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:31:57, skipping insertion in model container [2020-07-17 11:31:57,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:31:57" (3/3) ... [2020-07-17 11:31:57,636 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product18.cil.c [2020-07-17 11:31:57,646 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 11:31:57,656 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 11:31:57,668 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 11:31:57,693 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 11:31:57,693 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 11:31:57,693 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 11:31:57,694 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 11:31:57,694 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 11:31:57,694 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 11:31:57,694 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 11:31:57,694 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 11:31:57,718 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-07-17 11:31:57,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-17 11:31:57,727 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:31:57,728 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] [2020-07-17 11:31:57,729 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:31:57,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:31:57,734 INFO L82 PathProgramCache]: Analyzing trace with hash 144675927, now seen corresponding path program 1 times [2020-07-17 11:31:57,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:31:57,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902262996] [2020-07-17 11:31:57,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:31:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,385 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:31:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:31:58,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902262996] [2020-07-17 11:31:58,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:31:58,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 11:31:58,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910215970] [2020-07-17 11:31:58,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 11:31:58,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:31:58,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 11:31:58,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 11:31:58,561 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 3 states. [2020-07-17 11:31:59,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:31:59,677 INFO L93 Difference]: Finished difference Result 268 states and 351 transitions. [2020-07-17 11:31:59,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 11:31:59,679 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-17 11:31:59,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:31:59,697 INFO L225 Difference]: With dead ends: 268 [2020-07-17 11:31:59,698 INFO L226 Difference]: Without dead ends: 145 [2020-07-17 11:31:59,707 INFO L675 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 [2020-07-17 11:31:59,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-07-17 11:31:59,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 114. [2020-07-17 11:31:59,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-07-17 11:31:59,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 132 transitions. [2020-07-17 11:31:59,865 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 132 transitions. Word has length 52 [2020-07-17 11:31:59,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:31:59,866 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 132 transitions. [2020-07-17 11:31:59,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 11:31:59,866 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 132 transitions. [2020-07-17 11:31:59,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-17 11:31:59,879 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:31:59,880 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] [2020-07-17 11:31:59,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 11:31:59,880 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:31:59,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:31:59,881 INFO L82 PathProgramCache]: Analyzing trace with hash -274604967, now seen corresponding path program 1 times [2020-07-17 11:31:59,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:31:59,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386137144] [2020-07-17 11:31:59,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:31:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:00,239 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:32:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:00,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:32:00,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386137144] [2020-07-17 11:32:00,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:32:00,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 11:32:00,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402725178] [2020-07-17 11:32:00,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 11:32:00,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:32:00,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 11:32:00,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 11:32:00,288 INFO L87 Difference]: Start difference. First operand 114 states and 132 transitions. Second operand 4 states. [2020-07-17 11:32:00,751 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:32:01,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:32:01,467 INFO L93 Difference]: Finished difference Result 197 states and 238 transitions. [2020-07-17 11:32:01,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 11:32:01,470 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-17 11:32:01,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:32:01,472 INFO L225 Difference]: With dead ends: 197 [2020-07-17 11:32:01,472 INFO L226 Difference]: Without dead ends: 129 [2020-07-17 11:32:01,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 11:32:01,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-07-17 11:32:01,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 105. [2020-07-17 11:32:01,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-07-17 11:32:01,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 120 transitions. [2020-07-17 11:32:01,509 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 120 transitions. Word has length 53 [2020-07-17 11:32:01,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:32:01,510 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 120 transitions. [2020-07-17 11:32:01,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 11:32:01,510 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 120 transitions. [2020-07-17 11:32:01,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-17 11:32:01,512 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:01,513 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] [2020-07-17 11:32:01,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 11:32:01,513 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:01,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:01,514 INFO L82 PathProgramCache]: Analyzing trace with hash 245025236, now seen corresponding path program 1 times [2020-07-17 11:32:01,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:01,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435604293] [2020-07-17 11:32:01,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:01,884 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:32:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:01,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:32:01,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435604293] [2020-07-17 11:32:01,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:32:01,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 11:32:01,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228775996] [2020-07-17 11:32:01,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:32:01,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:32:01,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:32:01,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 11:32:01,989 INFO L87 Difference]: Start difference. First operand 105 states and 120 transitions. Second operand 8 states. [2020-07-17 11:32:02,403 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:32:02,712 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:03,003 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:03,237 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:04,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:32:04,235 INFO L93 Difference]: Finished difference Result 210 states and 256 transitions. [2020-07-17 11:32:04,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 11:32:04,236 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-07-17 11:32:04,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:32:04,239 INFO L225 Difference]: With dead ends: 210 [2020-07-17 11:32:04,239 INFO L226 Difference]: Without dead ends: 129 [2020-07-17 11:32:04,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-17 11:32:04,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-07-17 11:32:04,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 105. [2020-07-17 11:32:04,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-07-17 11:32:04,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2020-07-17 11:32:04,273 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 58 [2020-07-17 11:32:04,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:32:04,274 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2020-07-17 11:32:04,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:32:04,274 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2020-07-17 11:32:04,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-07-17 11:32:04,275 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:04,276 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] [2020-07-17 11:32:04,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 11:32:04,276 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:04,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:04,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1490172925, now seen corresponding path program 1 times [2020-07-17 11:32:04,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:04,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587797030] [2020-07-17 11:32:04,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:04,549 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:32:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:04,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:32:04,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587797030] [2020-07-17 11:32:04,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:32:04,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 11:32:04,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102363980] [2020-07-17 11:32:04,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:32:04,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:32:04,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:32:04,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 11:32:04,682 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand 8 states. [2020-07-17 11:32:05,204 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:32:06,462 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:06,748 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:07,012 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:07,301 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:32:07,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:32:07,861 INFO L93 Difference]: Finished difference Result 314 states and 408 transitions. [2020-07-17 11:32:07,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-17 11:32:07,861 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-07-17 11:32:07,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:32:07,866 INFO L225 Difference]: With dead ends: 314 [2020-07-17 11:32:07,866 INFO L226 Difference]: Without dead ends: 233 [2020-07-17 11:32:07,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-07-17 11:32:07,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-07-17 11:32:07,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 184. [2020-07-17 11:32:07,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-07-17 11:32:07,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 215 transitions. [2020-07-17 11:32:07,916 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 215 transitions. Word has length 66 [2020-07-17 11:32:07,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:32:07,916 INFO L479 AbstractCegarLoop]: Abstraction has 184 states and 215 transitions. [2020-07-17 11:32:07,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:32:07,917 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 215 transitions. [2020-07-17 11:32:07,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-17 11:32:07,918 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:07,919 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] [2020-07-17 11:32:07,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 11:32:07,919 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:07,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:07,920 INFO L82 PathProgramCache]: Analyzing trace with hash -123378135, now seen corresponding path program 1 times [2020-07-17 11:32:07,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:07,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003255844] [2020-07-17 11:32:07,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,179 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:32:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:32:08,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003255844] [2020-07-17 11:32:08,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:32:08,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 11:32:08,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18691715] [2020-07-17 11:32:08,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 11:32:08,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:32:08,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 11:32:08,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 11:32:08,267 INFO L87 Difference]: Start difference. First operand 184 states and 215 transitions. Second operand 6 states. [2020-07-17 11:32:08,642 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:32:09,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:32:09,173 INFO L93 Difference]: Finished difference Result 306 states and 373 transitions. [2020-07-17 11:32:09,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 11:32:09,176 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2020-07-17 11:32:09,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:32:09,177 INFO L225 Difference]: With dead ends: 306 [2020-07-17 11:32:09,178 INFO L226 Difference]: Without dead ends: 146 [2020-07-17 11:32:09,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-17 11:32:09,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-07-17 11:32:09,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 133. [2020-07-17 11:32:09,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-17 11:32:09,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 148 transitions. [2020-07-17 11:32:09,209 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 148 transitions. Word has length 70 [2020-07-17 11:32:09,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:32:09,210 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 148 transitions. [2020-07-17 11:32:09,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 11:32:09,210 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 148 transitions. [2020-07-17 11:32:09,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-17 11:32:09,211 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:09,211 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] [2020-07-17 11:32:09,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 11:32:09,212 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:09,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:09,212 INFO L82 PathProgramCache]: Analyzing trace with hash 2126179389, now seen corresponding path program 1 times [2020-07-17 11:32:09,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:09,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300775388] [2020-07-17 11:32:09,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:32:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:32:09,382 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 11:32:09,382 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 11:32:09,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 11:32:09,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 11:32:09 BoogieIcfgContainer [2020-07-17 11:32:09,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 11:32:09,545 INFO L168 Benchmark]: Toolchain (without parser) took 13861.47 ms. Allocated memory was 134.2 MB in the beginning and 489.7 MB in the end (delta: 355.5 MB). Free memory was 97.9 MB in the beginning and 255.1 MB in the end (delta: -157.2 MB). Peak memory consumption was 198.3 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:09,545 INFO L168 Benchmark]: CDTParser took 1.51 ms. Allocated memory is still 134.2 MB. Free memory is still 117.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 11:32:09,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.82 ms. Allocated memory was 134.2 MB in the beginning and 198.7 MB in the end (delta: 64.5 MB). Free memory was 97.5 MB in the beginning and 167.0 MB in the end (delta: -69.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:09,547 INFO L168 Benchmark]: Boogie Preprocessor took 89.63 ms. Allocated memory is still 198.7 MB. Free memory was 167.0 MB in the beginning and 162.5 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:09,548 INFO L168 Benchmark]: RCFGBuilder took 1184.85 ms. Allocated memory was 198.7 MB in the beginning and 223.3 MB in the end (delta: 24.6 MB). Free memory was 162.5 MB in the beginning and 194.4 MB in the end (delta: -31.9 MB). Peak memory consumption was 92.1 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:09,549 INFO L168 Benchmark]: TraceAbstraction took 11914.93 ms. Allocated memory was 223.3 MB in the beginning and 489.7 MB in the end (delta: 266.3 MB). Free memory was 192.9 MB in the beginning and 255.1 MB in the end (delta: -62.2 MB). Peak memory consumption was 204.2 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:09,556 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.51 ms. Allocated memory is still 134.2 MB. Free memory is still 117.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 664.82 ms. Allocated memory was 134.2 MB in the beginning and 198.7 MB in the end (delta: 64.5 MB). Free memory was 97.5 MB in the beginning and 167.0 MB in the end (delta: -69.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.63 ms. Allocated memory is still 198.7 MB. Free memory was 167.0 MB in the beginning and 162.5 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1184.85 ms. Allocated memory was 198.7 MB in the beginning and 223.3 MB in the end (delta: 24.6 MB). Free memory was 162.5 MB in the beginning and 194.4 MB in the end (delta: -31.9 MB). Peak memory consumption was 92.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11914.93 ms. Allocated memory was 223.3 MB in the beginning and 489.7 MB in the end (delta: 266.3 MB). Free memory was 192.9 MB in the beginning and 255.1 MB in the end (delta: -62.2 MB). Peak memory consumption was 204.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 910]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L149] int waterLevel = 1; [L150] int methaneLevelCritical = 0; [L407] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L608] int pumpRunning = 0; [L609] int systemActive = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=143, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=138, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] 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] [L126] 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] [L127] 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] [L128] 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] [L862] int retValue_acc ; [L865] retValue_acc = 1 [L866] 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] [L128] 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] [L128] tmp = valid_product() [L130] 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] [L132] 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] [L133] 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] [L112] 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] [L770] int splverifierCounter ; [L771] int tmp ; [L772] int tmp___0 ; [L773] int tmp___1 ; [L774] int tmp___2 ; [L777] 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] [L779] 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] [L781] 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] [L787] tmp = __VERIFIER_nondet_int() [L789] 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] [L791] 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] [L167] COND TRUE waterLevel < 2 [L168] 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] [L791] 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] [L797] tmp___0 = __VERIFIER_nondet_int() [L799] 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] [L807] tmp___2 = __VERIFIER_nondet_int() [L809] COND FALSE !(\read(tmp___2)) [L815] tmp___1 = __VERIFIER_nondet_int() [L817] 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] [L824] 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=1, waterLevel=2] [L616] 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=1, waterLevel=2] [L623] COND TRUE \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=1, waterLevel=2] [L625] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L645] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L648] 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=1, waterLevel=2] [L663] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L625] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L631] 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=1, waterLevel=2] [L873] int tmp ; [L874] int tmp___0 ; [L875] 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=1, waterLevel=2] [L879] 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=1, waterLevel=2] [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] 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=1, waterLevel=2] [L879] 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=1, waterLevel=2] [L879] tmp = isMethaneLevelCritical() [L881] 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=1, tmp=0, waterLevel=2] [L885] 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=1, waterLevel=2] [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] 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=1, waterLevel=2] [L885] 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=1, tmp=0, waterLevel=2] [L885] tmp___0 = getWaterLevel() [L887] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L889] 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=1, waterLevel=2] [L697] int retValue_acc ; [L700] retValue_acc = pumpRunning [L701] 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=1, waterLevel=2] [L889] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L889] tmp___1 = isPumpRunning() [L891] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L895] 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=1, waterLevel=2] [L910] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 221 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 465 SDtfs, 633 SDslu, 256 SDs, 0 SdLazy, 1390 SolverSat, 396 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred 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: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 141 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 369 NumberOfCodeBlocks, 369 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 294 ConstructedInterpolants, 0 QuantifiedInterpolants, 83938 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...