/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:05:41,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:05:41,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:05:41,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:05:41,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:05:41,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:05:41,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:05:41,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:05:41,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:05:41,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:05:41,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:05:41,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:05:41,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:05:41,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:05:41,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:05:41,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:05:41,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:05:41,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:05:41,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:05:41,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:05:41,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:05:41,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:05:41,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:05:41,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:05:41,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 18:05:41,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 18:05:41,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 18:05:41,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 18:05:41,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 18:05:41,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 18:05:41,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 18:05:41,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 18:05:41,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 18:05:41,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 18:05:41,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 18:05:41,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 18:05:41,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 18:05:41,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 18:05:41,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:05:41,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:05:41,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:05:41,576 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:05:41,586 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:05:41,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:05:41,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:05:41,588 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:05:41,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:05:41,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:05:41,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:05:41,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:05:41,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:05:41,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:05:41,589 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:05:41,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:05:41,589 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:05:41,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:05:41,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:05:41,590 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:05:41,590 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:05:41,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:05:41,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:05:41,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:05:41,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:05:41,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:05:41,592 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:05:41,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:05:41,884 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:05:41,888 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:05:41,889 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:05:41,890 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:05:41,890 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c [2020-08-22 18:05:41,964 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f680eb54b/8ddb05bdc0df4b3bb8082ac1f935680b/FLAGe050192d0 [2020-08-22 18:05:42,399 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:05:42,400 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c [2020-08-22 18:05:42,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f680eb54b/8ddb05bdc0df4b3bb8082ac1f935680b/FLAGe050192d0 [2020-08-22 18:05:42,775 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f680eb54b/8ddb05bdc0df4b3bb8082ac1f935680b [2020-08-22 18:05:42,786 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:05:42,788 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:05:42,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:05:42,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:05:42,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:05:42,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:05:42" (1/1) ... [2020-08-22 18:05:42,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b7e58fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:42, skipping insertion in model container [2020-08-22 18:05:42,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:05:42" (1/1) ... [2020-08-22 18:05:42,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:05:42,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:05:43,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:05:43,390 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:05:43,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:05:43,517 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:05:43,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:43 WrapperNode [2020-08-22 18:05:43,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:05:43,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:05:43,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:05:43,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:05:43,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:43" (1/1) ... [2020-08-22 18:05:43,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:43" (1/1) ... [2020-08-22 18:05:43,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:43" (1/1) ... [2020-08-22 18:05:43,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:43" (1/1) ... [2020-08-22 18:05:43,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:43" (1/1) ... [2020-08-22 18:05:43,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:43" (1/1) ... [2020-08-22 18:05:43,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:43" (1/1) ... [2020-08-22 18:05:43,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:05:43,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:05:43,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:05:43,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:05:43,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:43" (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 [2020-08-22 18:05:43,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:05:43,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:05:43,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 18:05:43,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:05:43,678 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 18:05:43,678 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 18:05:43,678 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 18:05:43,678 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 18:05:43,679 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 18:05:43,679 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 18:05:43,679 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 18:05:43,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 18:05:43,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 18:05:43,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 18:05:43,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 18:05:43,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 18:05:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 18:05:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 18:05:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 18:05:43,682 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 18:05:43,683 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 18:05:43,683 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 18:05:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 18:05:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 18:05:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 18:05:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 18:05:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 18:05:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 18:05:43,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 18:05:43,688 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 18:05:43,688 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 18:05:43,688 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 18:05:43,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 18:05:43,689 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 18:05:43,689 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 18:05:43,689 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 18:05:43,689 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 18:05:43,689 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 18:05:43,689 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 18:05:43,689 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 18:05:43,689 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 18:05:43,689 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:05:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:05:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:05:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 18:05:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 18:05:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 18:05:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 18:05:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 18:05:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:05:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 18:05:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 18:05:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 18:05:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 18:05:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 18:05:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 18:05:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:05:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 18:05:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 18:05:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 18:05:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 18:05:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 18:05:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 18:05:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:05:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 18:05:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 18:05:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:05:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 18:05:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 18:05:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:05:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 18:05:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 18:05:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 18:05:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 18:05:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 18:05:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 18:05:43,695 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 18:05:43,695 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 18:05:43,695 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 18:05:43,695 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 18:05:43,696 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 18:05:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 18:05:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 18:05:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 18:05:43,698 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 18:05:43,698 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 18:05:43,698 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 18:05:43,698 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 18:05:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 18:05:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 18:05:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 18:05:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 18:05:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 18:05:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 18:05:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:05:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:05:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 18:05:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:05:44,864 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:05:44,864 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 18:05:44,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:05:44 BoogieIcfgContainer [2020-08-22 18:05:44,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:05:44,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:05:44,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:05:44,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:05:44,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:05:42" (1/3) ... [2020-08-22 18:05:44,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b33e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:05:44, skipping insertion in model container [2020-08-22 18:05:44,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:43" (2/3) ... [2020-08-22 18:05:44,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b33e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:05:44, skipping insertion in model container [2020-08-22 18:05:44,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:05:44" (3/3) ... [2020-08-22 18:05:44,881 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2020-08-22 18:05:44,893 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:05:44,905 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:05:44,922 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:05:44,948 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:05:44,948 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:05:44,948 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:05:44,949 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:05:44,949 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:05:44,949 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:05:44,949 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:05:44,950 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:05:44,974 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states. [2020-08-22 18:05:44,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 18:05:44,997 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:44,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:05:44,999 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:45,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:45,006 INFO L82 PathProgramCache]: Analyzing trace with hash 71377499, now seen corresponding path program 1 times [2020-08-22 18:05:45,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:45,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [659022280] [2020-08-22 18:05:45,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:45,104 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:45,820 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:45,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:45,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:45,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:45,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:45,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:45,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:05:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:45,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 18:05:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:45,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 18:05:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:45,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:05:45,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [659022280] [2020-08-22 18:05:45,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:45,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:05:45,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478914945] [2020-08-22 18:05:45,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:05:45,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:45,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:05:45,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:05:46,002 INFO L87 Difference]: Start difference. First operand 339 states. Second operand 3 states. [2020-08-22 18:05:47,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:47,466 INFO L93 Difference]: Finished difference Result 534 states and 633 transitions. [2020-08-22 18:05:47,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:05:47,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 18:05:47,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:47,487 INFO L225 Difference]: With dead ends: 534 [2020-08-22 18:05:47,487 INFO L226 Difference]: Without dead ends: 326 [2020-08-22 18:05:47,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:05:47,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-08-22 18:05:47,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 282. [2020-08-22 18:05:47,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-08-22 18:05:47,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 307 transitions. [2020-08-22 18:05:47,629 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 307 transitions. Word has length 153 [2020-08-22 18:05:47,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:47,630 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 307 transitions. [2020-08-22 18:05:47,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:05:47,631 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 307 transitions. [2020-08-22 18:05:47,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 18:05:47,636 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:47,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:05:47,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:05:47,637 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:47,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:47,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1758648365, now seen corresponding path program 1 times [2020-08-22 18:05:47,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:47,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1858346512] [2020-08-22 18:05:47,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:47,642 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:47,984 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:47,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:48,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:48,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:48,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:48,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:48,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 18:05:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:48,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 18:05:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:48,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 18:05:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:48,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:05:48,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1858346512] [2020-08-22 18:05:48,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:48,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:05:48,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258656696] [2020-08-22 18:05:48,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:05:48,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:48,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:05:48,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:05:48,058 INFO L87 Difference]: Start difference. First operand 282 states and 307 transitions. Second operand 4 states. [2020-08-22 18:05:48,633 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:05:49,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:49,657 INFO L93 Difference]: Finished difference Result 441 states and 496 transitions. [2020-08-22 18:05:49,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 18:05:49,658 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 18:05:49,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:49,663 INFO L225 Difference]: With dead ends: 441 [2020-08-22 18:05:49,663 INFO L226 Difference]: Without dead ends: 309 [2020-08-22 18:05:49,665 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 [2020-08-22 18:05:49,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-08-22 18:05:49,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 272. [2020-08-22 18:05:49,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-08-22 18:05:49,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 294 transitions. [2020-08-22 18:05:49,752 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 294 transitions. Word has length 154 [2020-08-22 18:05:49,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:49,753 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 294 transitions. [2020-08-22 18:05:49,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:05:49,753 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 294 transitions. [2020-08-22 18:05:49,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-22 18:05:49,756 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:49,756 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:05:49,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:05:49,756 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:49,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:49,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1306567739, now seen corresponding path program 1 times [2020-08-22 18:05:49,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:49,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315929236] [2020-08-22 18:05:49,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:49,760 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,108 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:50,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 18:05:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 18:05:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-22 18:05:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-08-22 18:05:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:05:50,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315929236] [2020-08-22 18:05:50,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:50,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 18:05:50,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069897928] [2020-08-22 18:05:50,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 18:05:50,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:50,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 18:05:50,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 18:05:50,254 INFO L87 Difference]: Start difference. First operand 272 states and 294 transitions. Second operand 10 states. [2020-08-22 18:05:50,913 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:05:51,410 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:05:51,727 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:05:51,971 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:52,207 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:05:52,430 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:53,349 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:05:55,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:55,914 INFO L93 Difference]: Finished difference Result 762 states and 884 transitions. [2020-08-22 18:05:55,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 18:05:55,915 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-08-22 18:05:55,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:55,923 INFO L225 Difference]: With dead ends: 762 [2020-08-22 18:05:55,923 INFO L226 Difference]: Without dead ends: 600 [2020-08-22 18:05:55,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-08-22 18:05:55,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-08-22 18:05:56,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 505. [2020-08-22 18:05:56,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2020-08-22 18:05:56,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 564 transitions. [2020-08-22 18:05:56,155 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 564 transitions. Word has length 167 [2020-08-22 18:05:56,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:56,156 INFO L479 AbstractCegarLoop]: Abstraction has 505 states and 564 transitions. [2020-08-22 18:05:56,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 18:05:56,157 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 564 transitions. [2020-08-22 18:05:56,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-22 18:05:56,160 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:56,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:05:56,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:05:56,161 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:56,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:56,161 INFO L82 PathProgramCache]: Analyzing trace with hash 189083004, now seen corresponding path program 1 times [2020-08-22 18:05:56,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:56,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [899709735] [2020-08-22 18:05:56,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:56,165 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:56,477 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:56,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:56,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:56,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:56,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:56,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:56,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-22 18:05:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:56,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-22 18:05:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:56,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 18:05:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:56,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-08-22 18:05:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:56,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:05:56,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [899709735] [2020-08-22 18:05:56,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:56,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 18:05:56,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110308913] [2020-08-22 18:05:56,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 18:05:56,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:56,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 18:05:56,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 18:05:56,672 INFO L87 Difference]: Start difference. First operand 505 states and 564 transitions. Second operand 9 states. [2020-08-22 18:05:57,117 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:05:59,067 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:59,331 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:05:59,619 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:59,937 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:06:00,191 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:06:00,427 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:00,658 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:01,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:06:01,589 INFO L93 Difference]: Finished difference Result 1377 states and 1651 transitions. [2020-08-22 18:06:01,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 18:06:01,589 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-08-22 18:06:01,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:06:01,597 INFO L225 Difference]: With dead ends: 1377 [2020-08-22 18:06:01,597 INFO L226 Difference]: Without dead ends: 982 [2020-08-22 18:06:01,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 18:06:01,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2020-08-22 18:06:01,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 879. [2020-08-22 18:06:01,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-08-22 18:06:01,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1005 transitions. [2020-08-22 18:06:01,963 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1005 transitions. Word has length 172 [2020-08-22 18:06:01,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:06:01,964 INFO L479 AbstractCegarLoop]: Abstraction has 879 states and 1005 transitions. [2020-08-22 18:06:01,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 18:06:01,964 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1005 transitions. [2020-08-22 18:06:01,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-22 18:06:01,970 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:06:01,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:06:01,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:06:01,970 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:06:01,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:06:01,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1049977612, now seen corresponding path program 1 times [2020-08-22 18:06:01,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:06:01,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282677853] [2020-08-22 18:06:01,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:06:01,975 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:06:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:06:02,052 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:06:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:06:02,127 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:06:02,339 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:06:02,339 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:06:02,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 18:06:02,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:06:02 BoogieIcfgContainer [2020-08-22 18:06:02,378 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:06:02,380 INFO L168 Benchmark]: Toolchain (without parser) took 19592.54 ms. Allocated memory was 145.2 MB in the beginning and 520.1 MB in the end (delta: 374.9 MB). Free memory was 101.6 MB in the beginning and 170.2 MB in the end (delta: -68.6 MB). Peak memory consumption was 306.2 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:02,383 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 18:06:02,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 726.48 ms. Allocated memory was 145.2 MB in the beginning and 205.5 MB in the end (delta: 60.3 MB). Free memory was 101.4 MB in the beginning and 171.9 MB in the end (delta: -70.5 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:02,391 INFO L168 Benchmark]: Boogie Preprocessor took 94.27 ms. Allocated memory is still 205.5 MB. Free memory was 171.9 MB in the beginning and 167.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:02,392 INFO L168 Benchmark]: RCFGBuilder took 1259.17 ms. Allocated memory was 205.5 MB in the beginning and 235.4 MB in the end (delta: 29.9 MB). Free memory was 167.0 MB in the beginning and 170.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:02,393 INFO L168 Benchmark]: TraceAbstraction took 17505.47 ms. Allocated memory was 235.4 MB in the beginning and 520.1 MB in the end (delta: 284.7 MB). Free memory was 170.2 MB in the beginning and 170.2 MB in the end (delta: 36.9 kB). Peak memory consumption was 284.7 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:02,408 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 726.48 ms. Allocated memory was 145.2 MB in the beginning and 205.5 MB in the end (delta: 60.3 MB). Free memory was 101.4 MB in the beginning and 171.9 MB in the end (delta: -70.5 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.27 ms. Allocated memory is still 205.5 MB. Free memory was 171.9 MB in the beginning and 167.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1259.17 ms. Allocated memory was 205.5 MB in the beginning and 235.4 MB in the end (delta: 29.9 MB). Free memory was 167.0 MB in the beginning and 170.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17505.47 ms. Allocated memory was 235.4 MB in the beginning and 520.1 MB in the end (delta: 284.7 MB). Free memory was 170.2 MB in the beginning and 170.2 MB in the end (delta: 36.9 kB). Peak memory consumption was 284.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 853]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L84] int waterLevel = 1; [L85] int methaneLevelCritical = 0; [L356] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L559] int pumpRunning = 0; [L560] int systemActive = 1; [L896] int cleanupTimeShifts = 4; [L969] int retValue_acc ; [L970] int tmp ; [L974] FCALL select_helpers() [L975] FCALL select_features() [L976] CALL, EXPR valid_product() [L887] int retValue_acc ; [L890] retValue_acc = 1 [L891] return (retValue_acc); [L976] RET, EXPR valid_product() [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) [L980] FCALL setup() [L981] CALL runTest() [L963] CALL test() [L781] int splverifierCounter ; [L782] int tmp ; [L783] int tmp___0 ; [L784] int tmp___1 ; [L785] int tmp___2 ; [L788] splverifierCounter = 0 [L790] COND TRUE 1 [L792] COND TRUE splverifierCounter < 4 [L798] tmp = __VERIFIER_nondet_int() [L800] COND TRUE \read(tmp) [L802] CALL waterRise() [L102] COND TRUE waterLevel < 2 [L103] waterLevel = waterLevel + 1 [L802] RET waterRise() [L808] tmp___0 = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp___0)) [L818] tmp___2 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) [L830] CALL stopSystem() [L759] COND FALSE !(\read(pumpRunning)) [L766] systemActive = 0 [L830] RET stopSystem() [L837] CALL timeShift() [L566] COND FALSE !(\read(pumpRunning)) [L573] COND FALSE !(\read(systemActive)) [L581] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L123] int retValue_acc ; [L126] retValue_acc = methaneLevelCritical [L127] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L155] int retValue_acc ; [L158] retValue_acc = waterLevel [L159] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L673] int retValue_acc ; [L676] retValue_acc = pumpRunning [L677] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L853] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 653 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1088 SDtfs, 1702 SDslu, 1440 SDs, 0 SdLazy, 3453 SolverSat, 577 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=879occurred 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: 0.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 279 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...