/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 20:49:04,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 20:49:04,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 20:49:04,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 20:49:04,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 20:49:04,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 20:49:04,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 20:49:04,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 20:49:04,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 20:49:04,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 20:49:04,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 20:49:04,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 20:49:04,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 20:49:04,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 20:49:04,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 20:49:04,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 20:49:04,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 20:49:04,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 20:49:04,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 20:49:04,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 20:49:04,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 20:49:04,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 20:49:04,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 20:49:04,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 20:49:04,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 20:49:04,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 20:49:04,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 20:49:04,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 20:49:04,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 20:49:04,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 20:49:04,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 20:49:04,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 20:49:04,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 20:49:04,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 20:49:04,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 20:49:04,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 20:49:04,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 20:49:04,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 20:49:04,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 20:49:04,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 20:49:04,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 20:49:04,667 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 20:49:04,679 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 20:49:04,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 20:49:04,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 20:49:04,680 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 20:49:04,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 20:49:04,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 20:49:04,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 20:49:04,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 20:49:04,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 20:49:04,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 20:49:04,682 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 20:49:04,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 20:49:04,682 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 20:49:04,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 20:49:04,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 20:49:04,683 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 20:49:04,683 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 20:49:04,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 20:49:04,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:49:04,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 20:49:04,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 20:49:04,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 20:49:04,684 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-09-04 20:49:05,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 20:49:05,135 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 20:49:05,139 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 20:49:05,141 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 20:49:05,141 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 20:49:05,142 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c [2020-09-04 20:49:05,220 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7811eef97/b11a94d67c5545c9b0a54eff4876d375/FLAG8a0f3abaf [2020-09-04 20:49:05,841 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 20:49:05,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c [2020-09-04 20:49:05,868 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7811eef97/b11a94d67c5545c9b0a54eff4876d375/FLAG8a0f3abaf [2020-09-04 20:49:06,092 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7811eef97/b11a94d67c5545c9b0a54eff4876d375 [2020-09-04 20:49:06,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 20:49:06,107 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 20:49:06,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 20:49:06,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 20:49:06,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 20:49:06,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:49:06" (1/1) ... [2020-09-04 20:49:06,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:06, skipping insertion in model container [2020-09-04 20:49:06,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:49:06" (1/1) ... [2020-09-04 20:49:06,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 20:49:06,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 20:49:06,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:49:06,683 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 20:49:06,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:49:06,891 INFO L208 MainTranslator]: Completed translation [2020-09-04 20:49:06,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:06 WrapperNode [2020-09-04 20:49:06,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 20:49:06,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 20:49:06,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 20:49:06,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 20:49:06,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:06" (1/1) ... [2020-09-04 20:49:06,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:06" (1/1) ... [2020-09-04 20:49:06,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:06" (1/1) ... [2020-09-04 20:49:06,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:06" (1/1) ... [2020-09-04 20:49:06,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:06" (1/1) ... [2020-09-04 20:49:06,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:06" (1/1) ... [2020-09-04 20:49:06,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:06" (1/1) ... [2020-09-04 20:49:06,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 20:49:06,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 20:49:06,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 20:49:06,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 20:49:06,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:49:07,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 20:49:07,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 20:49:07,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 20:49:07,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 20:49:07,073 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 20:49:07,073 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 20:49:07,073 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-04 20:49:07,073 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 20:49:07,074 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 20:49:07,074 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 20:49:07,074 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 20:49:07,074 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 20:49:07,075 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 20:49:07,075 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-04 20:49:07,075 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 20:49:07,075 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 20:49:07,075 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 20:49:07,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:49:07,076 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 20:49:07,076 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 20:49:07,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 20:49:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 20:49:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 20:49:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 20:49:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 20:49:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 20:49:07,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 20:49:07,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 20:49:07,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 20:49:07,078 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 20:49:07,078 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 20:49:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 20:49:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 20:49:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 20:49:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 20:49:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-04 20:49:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 20:49:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 20:49:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 20:49:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 20:49:07,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 20:49:07,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 20:49:07,081 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 20:49:07,081 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 20:49:07,081 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 20:49:07,081 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 20:49:07,081 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 20:49:07,081 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-04 20:49:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 20:49:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 20:49:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 20:49:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 20:49:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 20:49:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 20:49:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 20:49:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:49:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 20:49:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 20:49:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-04 20:49:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-04 20:49:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 20:49:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 20:49:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 20:49:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 20:49:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 20:49:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 20:49:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 20:49:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 20:49:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 20:49:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 20:49:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 20:49:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 20:49:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 20:49:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 20:49:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 20:49:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 20:49:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 20:49:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 20:49:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 20:49:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 20:49:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 20:49:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 20:49:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 20:49:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 20:49:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 20:49:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 20:49:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 20:49:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 20:49:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 20:49:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 20:49:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 20:49:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 20:49:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 20:49:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 20:49:08,287 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 20:49:08,287 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 20:49:08,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:49:08 BoogieIcfgContainer [2020-09-04 20:49:08,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 20:49:08,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 20:49:08,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 20:49:08,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 20:49:08,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 08:49:06" (1/3) ... [2020-09-04 20:49:08,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26144055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:49:08, skipping insertion in model container [2020-09-04 20:49:08,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:06" (2/3) ... [2020-09-04 20:49:08,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26144055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:49:08, skipping insertion in model container [2020-09-04 20:49:08,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:49:08" (3/3) ... [2020-09-04 20:49:08,312 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2020-09-04 20:49:08,325 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 20:49:08,342 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 20:49:08,366 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 20:49:08,401 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 20:49:08,401 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 20:49:08,401 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 20:49:08,403 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 20:49:08,403 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 20:49:08,403 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 20:49:08,403 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 20:49:08,403 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 20:49:08,446 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-04 20:49:08,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 20:49:08,487 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:08,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:49:08,489 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:08,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:08,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1912594641, now seen corresponding path program 1 times [2020-09-04 20:49:08,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:08,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531616539] [2020-09-04 20:49:08,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,359 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:09,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:09,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 20:49:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:49:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:49:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:49:09,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1531616539] [2020-09-04 20:49:09,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:09,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 20:49:09,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251527228] [2020-09-04 20:49:09,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 20:49:09,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:09,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 20:49:09,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:49:09,617 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 3 states. [2020-09-04 20:49:11,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:11,092 INFO L93 Difference]: Finished difference Result 500 states and 599 transitions. [2020-09-04 20:49:11,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 20:49:11,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 20:49:11,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:11,121 INFO L225 Difference]: With dead ends: 500 [2020-09-04 20:49:11,121 INFO L226 Difference]: Without dead ends: 309 [2020-09-04 20:49:11,128 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 [2020-09-04 20:49:11,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-09-04 20:49:11,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 265. [2020-09-04 20:49:11,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-09-04 20:49:11,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 290 transitions. [2020-09-04 20:49:11,306 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 290 transitions. Word has length 153 [2020-09-04 20:49:11,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:11,309 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 290 transitions. [2020-09-04 20:49:11,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 20:49:11,310 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 290 transitions. [2020-09-04 20:49:11,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 20:49:11,319 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:11,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:49:11,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 20:49:11,320 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:11,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:11,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1080326154, now seen corresponding path program 1 times [2020-09-04 20:49:11,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:11,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977049739] [2020-09-04 20:49:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:11,891 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:11,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:11,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:11,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:11,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:11,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:11,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:11,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 20:49:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:11,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:49:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:11,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 20:49:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:11,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:49:11,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977049739] [2020-09-04 20:49:11,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:12,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 20:49:12,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486100902] [2020-09-04 20:49:12,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 20:49:12,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:12,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 20:49:12,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 20:49:12,007 INFO L87 Difference]: Start difference. First operand 265 states and 290 transitions. Second operand 4 states. [2020-09-04 20:49:12,647 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:49:13,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:13,734 INFO L93 Difference]: Finished difference Result 407 states and 462 transitions. [2020-09-04 20:49:13,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 20:49:13,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 20:49:13,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:13,739 INFO L225 Difference]: With dead ends: 407 [2020-09-04 20:49:13,739 INFO L226 Difference]: Without dead ends: 292 [2020-09-04 20:49:13,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 20:49:13,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-09-04 20:49:13,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 255. [2020-09-04 20:49:13,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-04 20:49:13,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 277 transitions. [2020-09-04 20:49:13,827 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 277 transitions. Word has length 154 [2020-09-04 20:49:13,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:13,828 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 277 transitions. [2020-09-04 20:49:13,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 20:49:13,828 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 277 transitions. [2020-09-04 20:49:13,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-04 20:49:13,830 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:13,831 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] [2020-09-04 20:49:13,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 20:49:13,831 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:13,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:13,832 INFO L82 PathProgramCache]: Analyzing trace with hash 240826418, now seen corresponding path program 1 times [2020-09-04 20:49:13,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:13,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1877644377] [2020-09-04 20:49:13,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,206 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:14,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 20:49:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 20:49:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-04 20:49:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-04 20:49:14,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:49:14,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1877644377] [2020-09-04 20:49:14,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:14,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 20:49:14,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962557626] [2020-09-04 20:49:14,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 20:49:14,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:14,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 20:49:14,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 20:49:14,366 INFO L87 Difference]: Start difference. First operand 255 states and 277 transitions. Second operand 10 states. [2020-09-04 20:49:15,086 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:49:15,517 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:49:15,760 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 20:49:16,060 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:16,377 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:49:16,662 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:17,666 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:49:20,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:20,389 INFO L93 Difference]: Finished difference Result 711 states and 833 transitions. [2020-09-04 20:49:20,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 20:49:20,392 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-04 20:49:20,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:20,400 INFO L225 Difference]: With dead ends: 711 [2020-09-04 20:49:20,401 INFO L226 Difference]: Without dead ends: 566 [2020-09-04 20:49:20,402 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-04 20:49:20,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2020-09-04 20:49:20,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 471. [2020-09-04 20:49:20,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2020-09-04 20:49:20,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 530 transitions. [2020-09-04 20:49:20,626 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 530 transitions. Word has length 167 [2020-09-04 20:49:20,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:20,628 INFO L479 AbstractCegarLoop]: Abstraction has 471 states and 530 transitions. [2020-09-04 20:49:20,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 20:49:20,629 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 530 transitions. [2020-09-04 20:49:20,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-04 20:49:20,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:20,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:49:20,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 20:49:20,634 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:20,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:20,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1420890141, now seen corresponding path program 1 times [2020-09-04 20:49:20,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:20,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1409951505] [2020-09-04 20:49:20,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,056 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:21,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 20:49:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-04 20:49:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-04 20:49:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-04 20:49:21,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:49:21,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1409951505] [2020-09-04 20:49:21,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:21,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:49:21,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508799022] [2020-09-04 20:49:21,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:49:21,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:21,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:49:21,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:49:21,250 INFO L87 Difference]: Start difference. First operand 471 states and 530 transitions. Second operand 9 states. [2020-09-04 20:49:21,750 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:49:23,861 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:24,187 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:49:24,580 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:24,949 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:49:25,248 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:49:25,548 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:25,843 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:26,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:26,883 INFO L93 Difference]: Finished difference Result 1279 states and 1543 transitions. [2020-09-04 20:49:26,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 20:49:26,884 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-04 20:49:26,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:26,892 INFO L225 Difference]: With dead ends: 1279 [2020-09-04 20:49:26,893 INFO L226 Difference]: Without dead ends: 918 [2020-09-04 20:49:26,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-04 20:49:26,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2020-09-04 20:49:27,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 815. [2020-09-04 20:49:27,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 815 states. [2020-09-04 20:49:27,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 943 transitions. [2020-09-04 20:49:27,156 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 943 transitions. Word has length 172 [2020-09-04 20:49:27,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:27,157 INFO L479 AbstractCegarLoop]: Abstraction has 815 states and 943 transitions. [2020-09-04 20:49:27,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:49:27,157 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 943 transitions. [2020-09-04 20:49:27,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 20:49:27,162 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:27,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:49:27,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 20:49:27,163 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:27,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:27,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1510310544, now seen corresponding path program 1 times [2020-09-04 20:49:27,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:27,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1029666294] [2020-09-04 20:49:27,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:27,515 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:27,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:27,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:27,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:27,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:27,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:27,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 20:49:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:27,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 20:49:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:27,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-04 20:49:27,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:27,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-04 20:49:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:27,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-04 20:49:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:27,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:49:27,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1029666294] [2020-09-04 20:49:27,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:27,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 20:49:27,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616391275] [2020-09-04 20:49:27,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 20:49:27,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:27,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 20:49:27,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 20:49:27,700 INFO L87 Difference]: Start difference. First operand 815 states and 943 transitions. Second operand 6 states. [2020-09-04 20:49:28,237 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:49:29,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:29,378 INFO L93 Difference]: Finished difference Result 1352 states and 1625 transitions. [2020-09-04 20:49:29,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 20:49:29,379 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-09-04 20:49:29,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:29,384 INFO L225 Difference]: With dead ends: 1352 [2020-09-04 20:49:29,384 INFO L226 Difference]: Without dead ends: 647 [2020-09-04 20:49:29,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-04 20:49:29,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2020-09-04 20:49:29,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 570. [2020-09-04 20:49:29,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2020-09-04 20:49:29,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 621 transitions. [2020-09-04 20:49:29,596 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 621 transitions. Word has length 177 [2020-09-04 20:49:29,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:29,596 INFO L479 AbstractCegarLoop]: Abstraction has 570 states and 621 transitions. [2020-09-04 20:49:29,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 20:49:29,597 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 621 transitions. [2020-09-04 20:49:29,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 20:49:29,599 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:29,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:49:29,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 20:49:29,600 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:29,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:29,601 INFO L82 PathProgramCache]: Analyzing trace with hash -557067660, now seen corresponding path program 1 times [2020-09-04 20:49:29,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:29,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1937639865] [2020-09-04 20:49:29,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:49:29,677 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:49:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:49:29,750 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:49:29,910 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 20:49:29,910 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 20:49:29,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 20:49:30,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 08:49:30 BoogieIcfgContainer [2020-09-04 20:49:30,114 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 20:49:30,116 INFO L168 Benchmark]: Toolchain (without parser) took 24008.59 ms. Allocated memory was 138.4 MB in the beginning and 644.9 MB in the end (delta: 506.5 MB). Free memory was 101.5 MB in the beginning and 465.7 MB in the end (delta: -364.2 MB). Peak memory consumption was 142.3 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:30,116 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 20:49:30,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 783.95 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.3 MB in the beginning and 172.1 MB in the end (delta: -70.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:30,118 INFO L168 Benchmark]: Boogie Preprocessor took 96.04 ms. Allocated memory is still 202.9 MB. Free memory was 171.4 MB in the beginning and 167.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:30,119 INFO L168 Benchmark]: RCFGBuilder took 1311.21 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 167.2 MB in the beginning and 176.1 MB in the end (delta: -8.9 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:30,120 INFO L168 Benchmark]: TraceAbstraction took 21811.29 ms. Allocated memory was 234.9 MB in the beginning and 644.9 MB in the end (delta: 410.0 MB). Free memory was 176.1 MB in the beginning and 465.7 MB in the end (delta: -289.5 MB). Peak memory consumption was 120.4 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:30,124 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 783.95 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.3 MB in the beginning and 172.1 MB in the end (delta: -70.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.04 ms. Allocated memory is still 202.9 MB. Free memory was 171.4 MB in the beginning and 167.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1311.21 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 167.2 MB in the beginning and 176.1 MB in the end (delta: -8.9 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21811.29 ms. Allocated memory was 234.9 MB in the beginning and 644.9 MB in the end (delta: 410.0 MB). Free memory was 176.1 MB in the beginning and 465.7 MB in the end (delta: -289.5 MB). Peak memory consumption was 120.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L60] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=166, \old(methaneLevelCritical)=147, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=144, cleanupTimeShifts=174, head={176:166}, methaneLevelCritical=147, pumpRunning=0, systemActive=136, waterLevel=144] [L61] int systemActive = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=166, \old(head)=176, \old(methaneLevelCritical)=147, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=144, cleanupTimeShifts=174, head={176:166}, methaneLevelCritical=147, pumpRunning=0, systemActive=1, waterLevel=144] [L369] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=166, \old(methaneLevelCritical)=147, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=144, cleanupTimeShifts=4, head={176:166}, methaneLevelCritical=147, pumpRunning=0, systemActive=1, waterLevel=144] [L637] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=166, \old(methaneLevelCritical)=147, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=147, pumpRunning=0, systemActive=1, waterLevel=144] [L834] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=166, \old(head)=176, \old(methaneLevelCritical)=147, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=147, pumpRunning=0, systemActive=1, waterLevel=1] [L835] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=166, \old(methaneLevelCritical)=147, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L445] int retValue_acc ; 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] [L446] 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] [L450] 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] [L451] 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] [L452] 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] [L949] int retValue_acc ; 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] [L952] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L953] 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] [L452] 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] [L452] tmp = 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, tmp=1, valid_product()=1, waterLevel=1] [L454] 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] [L456] 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] [L457] 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] [L436] 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] [L266] int splverifierCounter ; 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] [L267] 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] [L268] int tmp___0 ; 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] [L269] int tmp___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=1] [L270] int tmp___2 ; 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] [L273] 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] [L275] 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] [L277] 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] [L283] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L285] 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] [L287] 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] [L852] COND TRUE waterLevel < 2 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] [L853] 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] [L287] 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] [L293] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L295] 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] [L303] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L305] COND FALSE !(\read(tmp___2)) 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___2=0, waterLevel=2] [L311] tmp___1 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L313] 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] [L315] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L242] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L249] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L315] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L322] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L68] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L75] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L83] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L336] 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=0, waterLevel=2] [L337] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L338] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L342] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L873] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L876] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L877] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L342] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L342] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L344] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L348] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L905] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L908] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L909] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L348] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L348] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L350] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L352] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L175] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L178] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L179] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L352] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L352] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L354] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L358] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L44] __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=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 631 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 16.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1215 SDtfs, 1938 SDslu, 1576 SDs, 0 SdLazy, 3481 SolverSat, 698 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=815occurred 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: 0.9s AutomataMinimizationTime, 5 MinimizatonAttempts, 356 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1000 NumberOfCodeBlocks, 1000 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 818 ConstructedInterpolants, 0 QuantifiedInterpolants, 332294 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...