/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_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 15:26:06,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 15:26:06,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 15:26:06,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 15:26:06,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 15:26:06,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 15:26:06,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 15:26:06,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 15:26:06,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 15:26:06,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 15:26:06,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 15:26:06,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 15:26:06,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 15:26:06,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 15:26:06,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 15:26:06,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 15:26:06,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 15:26:06,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 15:26:06,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 15:26:06,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 15:26:06,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 15:26:06,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 15:26:06,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 15:26:06,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 15:26:06,645 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 15:26:06,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 15:26:06,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 15:26:06,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 15:26:06,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 15:26:06,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 15:26:06,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 15:26:06,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 15:26:06,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 15:26:06,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 15:26:06,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 15:26:06,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 15:26:06,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 15:26:06,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 15:26:06,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 15:26:06,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 15:26:06,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 15:26:06,660 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 15:26:06,672 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 15:26:06,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 15:26:06,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 15:26:06,674 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 15:26:06,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 15:26:06,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 15:26:06,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 15:26:06,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 15:26:06,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 15:26:06,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 15:26:06,675 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 15:26:06,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 15:26:06,676 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 15:26:06,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 15:26:06,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 15:26:06,676 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 15:26:06,677 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 15:26:06,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 15:26:06,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 15:26:06,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 15:26:06,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 15:26:06,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 15:26:06,678 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 15:26:07,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 15:26:07,145 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 15:26:07,150 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 15:26:07,151 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 15:26:07,152 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 15:26:07,153 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-09-04 15:26:07,233 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/24a90953b/51172bbfe9b14228aeded4cf8286b6c7/FLAGccd90c701 [2020-09-04 15:26:07,908 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 15:26:07,909 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-09-04 15:26:07,928 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/24a90953b/51172bbfe9b14228aeded4cf8286b6c7/FLAGccd90c701 [2020-09-04 15:26:08,135 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/24a90953b/51172bbfe9b14228aeded4cf8286b6c7 [2020-09-04 15:26:08,148 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 15:26:08,150 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 15:26:08,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 15:26:08,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 15:26:08,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 15:26:08,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:26:08" (1/1) ... [2020-09-04 15:26:08,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6870637f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:26:08, skipping insertion in model container [2020-09-04 15:26:08,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:26:08" (1/1) ... [2020-09-04 15:26:08,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 15:26:08,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 15:26:08,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:26:08,702 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 15:26:08,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:26:08,830 INFO L208 MainTranslator]: Completed translation [2020-09-04 15:26:08,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:26:08 WrapperNode [2020-09-04 15:26:08,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 15:26:08,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 15:26:08,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 15:26:08,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 15:26:08,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:26:08" (1/1) ... [2020-09-04 15:26:08,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:26:08" (1/1) ... [2020-09-04 15:26:08,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:26:08" (1/1) ... [2020-09-04 15:26:08,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:26:08" (1/1) ... [2020-09-04 15:26:08,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:26:08" (1/1) ... [2020-09-04 15:26:08,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:26:08" (1/1) ... [2020-09-04 15:26:08,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:26:08" (1/1) ... [2020-09-04 15:26:08,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 15:26:08,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 15:26:08,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 15:26:08,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 15:26:08,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:26:08" (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 15:26:09,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 15:26:09,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 15:26:09,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 15:26:09,039 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 15:26:09,040 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 15:26:09,040 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 15:26:09,040 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 15:26:09,040 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 15:26:09,040 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 15:26:09,041 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-04 15:26:09,041 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-04 15:26:09,041 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 15:26:09,041 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-04 15:26:09,041 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 15:26:09,042 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 15:26:09,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 15:26:09,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 15:26:09,042 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 15:26:09,043 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 15:26:09,043 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-04 15:26:09,043 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 15:26:09,043 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 15:26:09,044 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 15:26:09,044 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 15:26:09,044 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 15:26:09,044 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 15:26:09,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 15:26:09,044 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 15:26:09,045 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 15:26:09,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 15:26:09,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-04 15:26:09,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 15:26:09,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 15:26:09,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 15:26:09,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 15:26:09,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 15:26:09,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 15:26:09,046 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 15:26:09,046 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 15:26:09,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 15:26:09,047 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 15:26:09,047 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 15:26:09,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 15:26:09,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:26:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 15:26:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 15:26:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 15:26:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 15:26:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 15:26:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 15:26:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 15:26:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 15:26:09,049 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 15:26:09,049 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 15:26:09,049 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 15:26:09,049 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-04 15:26:09,049 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 15:26:09,049 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 15:26:09,050 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 15:26:09,050 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 15:26:09,050 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 15:26:09,050 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 15:26:09,050 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 15:26:09,050 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:26:09,050 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 15:26:09,051 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 15:26:09,051 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 15:26:09,051 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-04 15:26:09,051 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-04 15:26:09,051 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-04 15:26:09,051 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 15:26:09,051 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-04 15:26:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 15:26:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 15:26:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 15:26:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 15:26:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 15:26:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 15:26:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 15:26:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 15:26:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 15:26:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 15:26:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 15:26:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 15:26:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 15:26:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 15:26:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 15:26:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 15:26:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 15:26:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 15:26:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 15:26:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 15:26:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 15:26:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 15:26:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 15:26:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 15:26:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 15:26:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 15:26:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 15:26:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 15:26:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 15:26:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 15:26:10,197 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 15:26:10,198 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 15:26:10,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:26:10 BoogieIcfgContainer [2020-09-04 15:26:10,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 15:26:10,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 15:26:10,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 15:26:10,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 15:26:10,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 03:26:08" (1/3) ... [2020-09-04 15:26:10,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212914dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:26:10, skipping insertion in model container [2020-09-04 15:26:10,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:26:08" (2/3) ... [2020-09-04 15:26:10,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212914dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:26:10, skipping insertion in model container [2020-09-04 15:26:10,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:26:10" (3/3) ... [2020-09-04 15:26:10,215 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2020-09-04 15:26:10,226 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 15:26:10,237 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 15:26:10,259 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 15:26:10,284 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 15:26:10,284 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 15:26:10,284 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 15:26:10,284 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 15:26:10,284 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 15:26:10,284 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 15:26:10,284 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 15:26:10,285 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 15:26:10,310 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-04 15:26:10,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 15:26:10,336 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:26:10,338 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 15:26:10,338 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:26:10,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:26:10,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1409886201, now seen corresponding path program 1 times [2020-09-04 15:26:10,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:26:10,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204698525] [2020-09-04 15:26:10,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:26:10,431 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:26:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:11,210 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:26:11,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:26:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:11,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:26:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:11,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:26:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:11,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:26:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:11,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:26:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:11,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 15:26:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:11,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:26:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:11,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 15:26:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:11,421 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 15:26:11,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204698525] [2020-09-04 15:26:11,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:26:11,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 15:26:11,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949553306] [2020-09-04 15:26:11,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 15:26:11,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:26:11,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 15:26:11,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:26:11,452 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 3 states. [2020-09-04 15:26:13,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:26:13,090 INFO L93 Difference]: Finished difference Result 596 states and 710 transitions. [2020-09-04 15:26:13,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 15:26:13,092 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 15:26:13,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:26:13,113 INFO L225 Difference]: With dead ends: 596 [2020-09-04 15:26:13,113 INFO L226 Difference]: Without dead ends: 359 [2020-09-04 15:26:13,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:26:13,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-09-04 15:26:13,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 311. [2020-09-04 15:26:13,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2020-09-04 15:26:13,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 343 transitions. [2020-09-04 15:26:13,282 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 343 transitions. Word has length 153 [2020-09-04 15:26:13,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:26:13,283 INFO L479 AbstractCegarLoop]: Abstraction has 311 states and 343 transitions. [2020-09-04 15:26:13,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 15:26:13,283 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 343 transitions. [2020-09-04 15:26:13,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 15:26:13,288 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:26:13,289 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 15:26:13,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 15:26:13,289 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:26:13,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:26:13,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1484490913, now seen corresponding path program 1 times [2020-09-04 15:26:13,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:26:13,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033810474] [2020-09-04 15:26:13,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:26:13,293 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:26:13,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:13,727 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:26:13,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:26:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:13,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:26:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:13,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:26:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:13,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:26:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:13,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:26:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:13,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 15:26:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:13,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 15:26:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:13,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 15:26:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:13,845 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 15:26:13,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033810474] [2020-09-04 15:26:13,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:26:13,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 15:26:13,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396907067] [2020-09-04 15:26:13,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 15:26:13,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:26:13,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 15:26:13,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 15:26:13,853 INFO L87 Difference]: Start difference. First operand 311 states and 343 transitions. Second operand 4 states. [2020-09-04 15:26:14,544 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:26:16,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:26:16,000 INFO L93 Difference]: Finished difference Result 503 states and 573 transitions. [2020-09-04 15:26:16,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 15:26:16,003 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 15:26:16,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:26:16,007 INFO L225 Difference]: With dead ends: 503 [2020-09-04 15:26:16,008 INFO L226 Difference]: Without dead ends: 342 [2020-09-04 15:26:16,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 15:26:16,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-09-04 15:26:16,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 301. [2020-09-04 15:26:16,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-09-04 15:26:16,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 330 transitions. [2020-09-04 15:26:16,113 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 330 transitions. Word has length 154 [2020-09-04 15:26:16,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:26:16,114 INFO L479 AbstractCegarLoop]: Abstraction has 301 states and 330 transitions. [2020-09-04 15:26:16,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 15:26:16,114 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 330 transitions. [2020-09-04 15:26:16,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-04 15:26:16,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:26:16,117 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 15:26:16,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 15:26:16,118 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:26:16,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:26:16,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1631977851, now seen corresponding path program 1 times [2020-09-04 15:26:16,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:26:16,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [325788579] [2020-09-04 15:26:16,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:26:16,121 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:26:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:16,535 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:26:16,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:26:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:16,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:26:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:16,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:26:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:16,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:26:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:16,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:26:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:16,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 15:26:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:16,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 15:26:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:16,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-04 15:26:16,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:16,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-04 15:26:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:16,743 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 15:26:16,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [325788579] [2020-09-04 15:26:16,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:26:16,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 15:26:16,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105152694] [2020-09-04 15:26:16,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 15:26:16,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:26:16,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 15:26:16,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 15:26:16,746 INFO L87 Difference]: Start difference. First operand 301 states and 330 transitions. Second operand 10 states. [2020-09-04 15:26:17,396 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:26:17,776 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:26:18,097 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 15:26:18,391 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:26:18,707 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:26:18,994 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:26:19,961 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:26:23,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:26:23,537 INFO L93 Difference]: Finished difference Result 857 states and 1002 transitions. [2020-09-04 15:26:23,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 15:26:23,537 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-04 15:26:23,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:26:23,545 INFO L225 Difference]: With dead ends: 857 [2020-09-04 15:26:23,545 INFO L226 Difference]: Without dead ends: 666 [2020-09-04 15:26:23,547 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 15:26:23,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2020-09-04 15:26:23,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 563. [2020-09-04 15:26:23,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2020-09-04 15:26:23,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 636 transitions. [2020-09-04 15:26:23,796 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 636 transitions. Word has length 167 [2020-09-04 15:26:23,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:26:23,796 INFO L479 AbstractCegarLoop]: Abstraction has 563 states and 636 transitions. [2020-09-04 15:26:23,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 15:26:23,797 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 636 transitions. [2020-09-04 15:26:23,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-04 15:26:23,800 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:26:23,800 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 15:26:23,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 15:26:23,801 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:26:23,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:26:23,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1733471064, now seen corresponding path program 1 times [2020-09-04 15:26:23,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:26:23,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666254667] [2020-09-04 15:26:23,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:26:23,805 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:26:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:24,196 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:26:24,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:26:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:24,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:26:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:24,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:26:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:24,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:26:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:24,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:26:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:24,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 15:26:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:24,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-04 15:26:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:24,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-04 15:26:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:24,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-04 15:26:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:26:24,358 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 15:26:24,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1666254667] [2020-09-04 15:26:24,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:26:24,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 15:26:24,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306559941] [2020-09-04 15:26:24,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 15:26:24,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:26:24,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 15:26:24,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 15:26:24,361 INFO L87 Difference]: Start difference. First operand 563 states and 636 transitions. Second operand 9 states. [2020-09-04 15:26:24,894 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:26:27,178 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:26:27,597 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:26:28,003 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:26:28,387 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:26:28,644 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:26:28,946 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:26:29,241 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:26:30,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:26:30,705 INFO L93 Difference]: Finished difference Result 1567 states and 1891 transitions. [2020-09-04 15:26:30,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 15:26:30,705 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-04 15:26:30,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:26:30,714 INFO L225 Difference]: With dead ends: 1567 [2020-09-04 15:26:30,714 INFO L226 Difference]: Without dead ends: 1114 [2020-09-04 15:26:30,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-04 15:26:30,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2020-09-04 15:26:31,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1003. [2020-09-04 15:26:31,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1003 states. [2020-09-04 15:26:31,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1159 transitions. [2020-09-04 15:26:31,070 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1159 transitions. Word has length 172 [2020-09-04 15:26:31,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:26:31,071 INFO L479 AbstractCegarLoop]: Abstraction has 1003 states and 1159 transitions. [2020-09-04 15:26:31,071 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 15:26:31,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1159 transitions. [2020-09-04 15:26:31,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 15:26:31,076 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:26:31,076 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 15:26:31,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 15:26:31,077 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:26:31,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:26:31,077 INFO L82 PathProgramCache]: Analyzing trace with hash 102633961, now seen corresponding path program 1 times [2020-09-04 15:26:31,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:26:31,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562823009] [2020-09-04 15:26:31,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:26:31,080 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:26:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:26:31,157 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:26:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:26:31,234 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:26:31,453 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 15:26:31,453 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 15:26:31,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 15:26:31,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 03:26:31 BoogieIcfgContainer [2020-09-04 15:26:31,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 15:26:31,489 INFO L168 Benchmark]: Toolchain (without parser) took 23338.93 ms. Allocated memory was 140.5 MB in the beginning and 620.2 MB in the end (delta: 479.7 MB). Free memory was 103.8 MB in the beginning and 417.4 MB in the end (delta: -313.6 MB). Peak memory consumption was 166.1 MB. Max. memory is 7.1 GB. [2020-09-04 15:26:31,490 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 15:26:31,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.23 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 103.6 MB in the beginning and 168.5 MB in the end (delta: -64.9 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-09-04 15:26:31,492 INFO L168 Benchmark]: Boogie Preprocessor took 118.10 ms. Allocated memory is still 204.5 MB. Free memory was 168.5 MB in the beginning and 164.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-04 15:26:31,493 INFO L168 Benchmark]: RCFGBuilder took 1255.33 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 164.5 MB in the beginning and 163.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 77.4 MB. Max. memory is 7.1 GB. [2020-09-04 15:26:31,494 INFO L168 Benchmark]: TraceAbstraction took 21279.84 ms. Allocated memory was 235.4 MB in the beginning and 620.2 MB in the end (delta: 384.8 MB). Free memory was 163.1 MB in the beginning and 417.4 MB in the end (delta: -254.3 MB). Peak memory consumption was 130.5 MB. Max. memory is 7.1 GB. [2020-09-04 15:26:31,498 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 680.23 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 103.6 MB in the beginning and 168.5 MB in the end (delta: -64.9 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.10 ms. Allocated memory is still 204.5 MB. Free memory was 168.5 MB in the beginning and 164.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1255.33 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 164.5 MB in the beginning and 163.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 77.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21279.84 ms. Allocated memory was 235.4 MB in the beginning and 620.2 MB in the end (delta: 384.8 MB). Free memory was 163.1 MB in the beginning and 417.4 MB in the end (delta: -254.3 MB). Peak memory consumption was 130.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 996]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L90] int pumpRunning = 0; [L91] int systemActive = 1; [L427] int waterLevel = 1; [L428] int methaneLevelCritical = 0; [L699] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L896] int cleanupTimeShifts = 4; [L969] int retValue_acc ; [L970] int tmp ; [L974] FCALL select_helpers() [L975] FCALL select_features() [L976] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] 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() [L358] int splverifierCounter ; [L359] int tmp ; [L360] int tmp___0 ; [L361] int tmp___1 ; [L362] int tmp___2 ; [L365] splverifierCounter = 0 [L367] COND TRUE 1 [L369] COND TRUE splverifierCounter < 4 [L375] tmp = __VERIFIER_nondet_int() [L377] COND TRUE \read(tmp) [L379] CALL waterRise() [L445] COND TRUE waterLevel < 2 [L446] waterLevel = waterLevel + 1 [L379] RET waterRise() [L385] tmp___0 = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp___0)) [L395] tmp___2 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___2)) [L403] tmp___1 = __VERIFIER_nondet_int() [L405] COND TRUE \read(tmp___1) [L407] CALL stopSystem() [L334] COND FALSE !(\read(pumpRunning)) [L341] systemActive = 0 [L407] RET stopSystem() [L414] CALL timeShift() [L98] COND FALSE !(\read(pumpRunning)) [L105] COND FALSE !(\read(systemActive)) [L113] CALL __utac_acc__Specification3_spec__1() [L1002] int tmp ; [L1003] int tmp___0 ; [L1004] int tmp___1 ; [L1008] CALL, EXPR isMethaneLevelCritical() [L466] int retValue_acc ; [L469] retValue_acc = methaneLevelCritical [L470] return (retValue_acc); [L1008] RET, EXPR isMethaneLevelCritical() [L1008] tmp = isMethaneLevelCritical() [L1010] COND FALSE !(\read(tmp)) [L1014] CALL, EXPR getWaterLevel() [L498] int retValue_acc ; [L501] retValue_acc = waterLevel [L502] return (retValue_acc); [L1014] RET, EXPR getWaterLevel() [L1014] tmp___0 = getWaterLevel() [L1016] COND TRUE tmp___0 == 2 [L1018] CALL, EXPR isPumpRunning() [L248] int retValue_acc ; [L251] retValue_acc = pumpRunning [L252] return (retValue_acc); [L1018] RET, EXPR isPumpRunning() [L1018] tmp___1 = isPumpRunning() [L1020] COND FALSE !(\read(tmp___1)) [L1024] CALL __automaton_fail() [L996] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 674 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 17.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1195 SDtfs, 1950 SDslu, 1496 SDs, 0 SdLazy, 3916 SolverSat, 721 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1003occurred 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, 303 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...