./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a376335b8a3ab47de9d514c456736b6e8cd0860f7823a0aab43b69eb15a45340 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:01:04,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:01:04,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:01:04,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:01:04,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:01:04,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:01:04,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:01:04,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:01:04,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:01:04,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:01:04,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:01:04,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:01:04,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:01:04,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:01:04,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:01:04,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:01:04,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:01:04,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:01:04,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:01:04,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:01:04,073 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:01:04,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:01:04,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:01:04,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:01:04,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:01:04,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:01:04,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:01:04,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:01:04,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:01:04,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:01:04,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:01:04,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:01:04,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:01:04,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:01:04,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:01:04,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:01:04,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:01:04,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:01:04,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:01:04,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:01:04,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:01:04,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:01:04,085 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:01:04,099 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:01:04,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:01:04,100 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:01:04,100 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:01:04,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:01:04,101 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:01:04,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:01:04,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:01:04,102 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:01:04,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:01:04,102 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:01:04,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:01:04,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:01:04,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:01:04,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:01:04,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:01:04,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:01:04,111 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:01:04,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:01:04,111 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:01:04,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:01:04,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:01:04,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:01:04,112 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:01:04,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:01:04,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:01:04,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:01:04,113 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:01:04,113 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:01:04,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:01:04,113 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:01:04,114 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:01:04,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:01:04,114 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a376335b8a3ab47de9d514c456736b6e8cd0860f7823a0aab43b69eb15a45340 [2022-07-21 05:01:04,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:01:04,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:01:04,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:01:04,406 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:01:04,407 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:01:04,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2022-07-21 05:01:04,455 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c8fc9764/45fa715056bd4ff7bfb3ce6180bca615/FLAG1bedbe881 [2022-07-21 05:01:04,898 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:01:04,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2022-07-21 05:01:04,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c8fc9764/45fa715056bd4ff7bfb3ce6180bca615/FLAG1bedbe881 [2022-07-21 05:01:05,270 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c8fc9764/45fa715056bd4ff7bfb3ce6180bca615 [2022-07-21 05:01:05,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:01:05,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:01:05,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:01:05,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:01:05,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:01:05,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:01:05" (1/1) ... [2022-07-21 05:01:05,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a43512e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:05, skipping insertion in model container [2022-07-21 05:01:05,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:01:05" (1/1) ... [2022-07-21 05:01:05,283 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:01:05,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:01:05,469 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c[18789,18802] [2022-07-21 05:01:05,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:01:05,496 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:01:05,560 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c[18789,18802] [2022-07-21 05:01:05,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:01:05,572 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:01:05,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:05 WrapperNode [2022-07-21 05:01:05,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:01:05,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:01:05,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:01:05,574 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:01:05,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:05" (1/1) ... [2022-07-21 05:01:05,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:05" (1/1) ... [2022-07-21 05:01:05,609 INFO L137 Inliner]: procedures = 56, calls = 157, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 266 [2022-07-21 05:01:05,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:01:05,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:01:05,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:01:05,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:01:05,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:05" (1/1) ... [2022-07-21 05:01:05,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:05" (1/1) ... [2022-07-21 05:01:05,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:05" (1/1) ... [2022-07-21 05:01:05,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:05" (1/1) ... [2022-07-21 05:01:05,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:05" (1/1) ... [2022-07-21 05:01:05,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:05" (1/1) ... [2022-07-21 05:01:05,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:05" (1/1) ... [2022-07-21 05:01:05,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:01:05,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:01:05,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:01:05,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:01:05,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:05" (1/1) ... [2022-07-21 05:01:05,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:01:05,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:01:05,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 05:01:05,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 05:01:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:01:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-21 05:01:05,727 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-21 05:01:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-21 05:01:05,728 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-21 05:01:05,728 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-21 05:01:05,728 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-21 05:01:05,728 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-21 05:01:05,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-21 05:01:05,728 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-07-21 05:01:05,728 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-07-21 05:01:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-21 05:01:05,729 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-21 05:01:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-21 05:01:05,729 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-21 05:01:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:01:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-21 05:01:05,729 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-21 05:01:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:01:05,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:01:05,812 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:01:05,815 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:01:06,081 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:01:06,095 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:01:06,095 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 05:01:06,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:01:06 BoogieIcfgContainer [2022-07-21 05:01:06,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:01:06,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:01:06,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:01:06,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:01:06,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:01:05" (1/3) ... [2022-07-21 05:01:06,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fa947c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:01:06, skipping insertion in model container [2022-07-21 05:01:06,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:05" (2/3) ... [2022-07-21 05:01:06,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fa947c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:01:06, skipping insertion in model container [2022-07-21 05:01:06,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:01:06" (3/3) ... [2022-07-21 05:01:06,104 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2022-07-21 05:01:06,114 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:01:06,114 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 05:01:06,166 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:01:06,172 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1f47c132, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6e95e6a5 [2022-07-21 05:01:06,172 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 05:01:06,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 81 states have internal predecessors, (100), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-21 05:01:06,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-21 05:01:06,191 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:06,192 INFO L195 NwaCegarLoop]: 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] [2022-07-21 05:01:06,193 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:06,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:06,198 INFO L85 PathProgramCache]: Analyzing trace with hash 120093643, now seen corresponding path program 1 times [2022-07-21 05:01:06,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:06,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734177620] [2022-07-21 05:01:06,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:06,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:06,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 05:01:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:06,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:06,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:06,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734177620] [2022-07-21 05:01:06,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734177620] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:06,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:06,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 05:01:06,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139412323] [2022-07-21 05:01:06,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:06,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 05:01:06,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:06,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 05:01:06,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 05:01:06,447 INFO L87 Difference]: Start difference. First operand has 95 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 81 states have internal predecessors, (100), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:01:06,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:06,490 INFO L93 Difference]: Finished difference Result 182 states and 247 transitions. [2022-07-21 05:01:06,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 05:01:06,492 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-07-21 05:01:06,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:06,499 INFO L225 Difference]: With dead ends: 182 [2022-07-21 05:01:06,500 INFO L226 Difference]: Without dead ends: 86 [2022-07-21 05:01:06,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 05:01:06,506 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:06,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:06,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-07-21 05:01:06,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-07-21 05:01:06,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 65 states have (on average 1.323076923076923) internal successors, (86), 73 states have internal predecessors, (86), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2022-07-21 05:01:06,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2022-07-21 05:01:06,557 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 25 [2022-07-21 05:01:06,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:06,558 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2022-07-21 05:01:06,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:01:06,559 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2022-07-21 05:01:06,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-21 05:01:06,561 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:06,562 INFO L195 NwaCegarLoop]: 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] [2022-07-21 05:01:06,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 05:01:06,562 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:06,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:06,564 INFO L85 PathProgramCache]: Analyzing trace with hash 255457081, now seen corresponding path program 1 times [2022-07-21 05:01:06,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:06,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496140604] [2022-07-21 05:01:06,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:06,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:06,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 05:01:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:06,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:06,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:06,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496140604] [2022-07-21 05:01:06,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496140604] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:06,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:06,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:01:06,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528578213] [2022-07-21 05:01:06,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:06,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:01:06,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:06,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:01:06,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:01:06,671 INFO L87 Difference]: Start difference. First operand 86 states and 111 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:01:06,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:06,685 INFO L93 Difference]: Finished difference Result 134 states and 172 transitions. [2022-07-21 05:01:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:01:06,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-07-21 05:01:06,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:06,690 INFO L225 Difference]: With dead ends: 134 [2022-07-21 05:01:06,690 INFO L226 Difference]: Without dead ends: 77 [2022-07-21 05:01:06,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:01:06,697 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 16 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:06,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 175 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:06,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-07-21 05:01:06,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-07-21 05:01:06,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 67 states have internal predecessors, (79), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-21 05:01:06,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2022-07-21 05:01:06,709 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 26 [2022-07-21 05:01:06,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:06,710 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2022-07-21 05:01:06,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:01:06,710 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2022-07-21 05:01:06,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-21 05:01:06,714 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:06,714 INFO L195 NwaCegarLoop]: 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] [2022-07-21 05:01:06,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 05:01:06,715 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:06,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:06,715 INFO L85 PathProgramCache]: Analyzing trace with hash 547616609, now seen corresponding path program 1 times [2022-07-21 05:01:06,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:06,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752112098] [2022-07-21 05:01:06,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:06,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:06,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 05:01:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:06,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:06,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:06,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752112098] [2022-07-21 05:01:06,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752112098] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:06,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:06,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:01:06,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632229424] [2022-07-21 05:01:06,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:06,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:01:06,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:06,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:01:06,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:01:06,826 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:01:07,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:07,014 INFO L93 Difference]: Finished difference Result 260 states and 341 transitions. [2022-07-21 05:01:07,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 05:01:07,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-07-21 05:01:07,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:07,018 INFO L225 Difference]: With dead ends: 260 [2022-07-21 05:01:07,018 INFO L226 Difference]: Without dead ends: 190 [2022-07-21 05:01:07,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 05:01:07,023 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 205 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:07,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 512 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:01:07,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-07-21 05:01:07,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2022-07-21 05:01:07,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 139 states have (on average 1.3669064748201438) internal successors, (190), 157 states have internal predecessors, (190), 25 states have call successors, (25), 19 states have call predecessors, (25), 19 states have return successors, (26), 17 states have call predecessors, (26), 25 states have call successors, (26) [2022-07-21 05:01:07,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 241 transitions. [2022-07-21 05:01:07,055 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 241 transitions. Word has length 30 [2022-07-21 05:01:07,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:07,056 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 241 transitions. [2022-07-21 05:01:07,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:01:07,057 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 241 transitions. [2022-07-21 05:01:07,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-21 05:01:07,059 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:07,059 INFO L195 NwaCegarLoop]: 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] [2022-07-21 05:01:07,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 05:01:07,060 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:07,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:07,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1724794985, now seen corresponding path program 1 times [2022-07-21 05:01:07,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:07,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724978718] [2022-07-21 05:01:07,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:07,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:07,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 05:01:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:07,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:07,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:07,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724978718] [2022-07-21 05:01:07,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724978718] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:07,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:07,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:01:07,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179410273] [2022-07-21 05:01:07,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:07,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:01:07,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:07,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:01:07,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:01:07,159 INFO L87 Difference]: Start difference. First operand 184 states and 241 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:01:07,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:07,221 INFO L93 Difference]: Finished difference Result 530 states and 718 transitions. [2022-07-21 05:01:07,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:01:07,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-07-21 05:01:07,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:07,228 INFO L225 Difference]: With dead ends: 530 [2022-07-21 05:01:07,229 INFO L226 Difference]: Without dead ends: 353 [2022-07-21 05:01:07,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:01:07,232 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 68 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:07,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 396 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:07,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-07-21 05:01:07,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 344. [2022-07-21 05:01:07,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 258 states have (on average 1.3410852713178294) internal successors, (346), 290 states have internal predecessors, (346), 50 states have call successors, (50), 38 states have call predecessors, (50), 35 states have return successors, (56), 31 states have call predecessors, (56), 50 states have call successors, (56) [2022-07-21 05:01:07,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 452 transitions. [2022-07-21 05:01:07,267 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 452 transitions. Word has length 34 [2022-07-21 05:01:07,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:07,267 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 452 transitions. [2022-07-21 05:01:07,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:01:07,267 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 452 transitions. [2022-07-21 05:01:07,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-21 05:01:07,269 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:07,269 INFO L195 NwaCegarLoop]: 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] [2022-07-21 05:01:07,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 05:01:07,269 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:07,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:07,270 INFO L85 PathProgramCache]: Analyzing trace with hash 154877, now seen corresponding path program 1 times [2022-07-21 05:01:07,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:07,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252651627] [2022-07-21 05:01:07,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:07,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 05:01:07,286 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 05:01:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 05:01:07,332 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 05:01:07,332 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 05:01:07,333 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 05:01:07,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 05:01:07,342 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-21 05:01:07,344 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 05:01:07,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:01:07 BoogieIcfgContainer [2022-07-21 05:01:07,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 05:01:07,386 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 05:01:07,387 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 05:01:07,387 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 05:01:07,387 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:01:06" (3/4) ... [2022-07-21 05:01:07,389 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-21 05:01:07,429 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 05:01:07,429 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 05:01:07,437 INFO L158 Benchmark]: Toolchain (without parser) took 2157.07ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 28.3MB in the beginning and 29.1MB in the end (delta: -798.5kB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2022-07-21 05:01:07,437 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 52.4MB. Free memory was 34.3MB in the beginning and 34.2MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 05:01:07,437 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.50ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 28.1MB in the beginning and 47.9MB in the end (delta: -19.8MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-07-21 05:01:07,438 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.44ms. Allocated memory is still 71.3MB. Free memory was 47.9MB in the beginning and 45.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 05:01:07,438 INFO L158 Benchmark]: Boogie Preprocessor took 45.84ms. Allocated memory is still 71.3MB. Free memory was 45.3MB in the beginning and 43.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 05:01:07,438 INFO L158 Benchmark]: RCFGBuilder took 440.88ms. Allocated memory is still 71.3MB. Free memory was 43.7MB in the beginning and 43.2MB in the end (delta: 413.0kB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2022-07-21 05:01:07,438 INFO L158 Benchmark]: TraceAbstraction took 1287.57ms. Allocated memory is still 71.3MB. Free memory was 42.7MB in the beginning and 32.9MB in the end (delta: 9.8MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2022-07-21 05:01:07,439 INFO L158 Benchmark]: Witness Printer took 43.10ms. Allocated memory is still 71.3MB. Free memory was 32.9MB in the beginning and 29.1MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 05:01:07,440 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 52.4MB. Free memory was 34.3MB in the beginning and 34.2MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.50ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 28.1MB in the beginning and 47.9MB in the end (delta: -19.8MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.44ms. Allocated memory is still 71.3MB. Free memory was 47.9MB in the beginning and 45.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.84ms. Allocated memory is still 71.3MB. Free memory was 45.3MB in the beginning and 43.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 440.88ms. Allocated memory is still 71.3MB. Free memory was 43.7MB in the beginning and 43.2MB in the end (delta: 413.0kB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1287.57ms. Allocated memory is still 71.3MB. Free memory was 42.7MB in the beginning and 32.9MB in the end (delta: 9.8MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Witness Printer took 43.10ms. Allocated memory is still 71.3MB. Free memory was 32.9MB in the beginning and 29.1MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 987]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L235] int pumpRunning = 0; [L236] int systemActive = 1; [L483] int cleanupTimeShifts = 4; [L786] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L559] int retValue_acc ; [L560] int tmp ; [L564] FCALL select_helpers() [L565] FCALL select_features() [L566] CALL, EXPR valid_product() [L608] int retValue_acc ; [L611] retValue_acc = 1 [L612] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L566] RET, EXPR valid_product() [L566] tmp = valid_product() [L568] COND TRUE \read(tmp) [L570] FCALL setup() [L571] CALL runTest() [L550] CALL test() [L165] int splverifierCounter ; [L166] int tmp ; [L167] int tmp___0 ; [L168] int tmp___1 ; [L169] int tmp___2 ; [L172] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L174] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L176] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L182] tmp = __VERIFIER_nondet_int() [L184] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L186] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L76] COND TRUE waterLevel < 2 [L77] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L186] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L192] tmp___0 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L202] tmp___2 = __VERIFIER_nondet_int() [L204] COND FALSE !(\read(tmp___2)) [L208] tmp___1 = __VERIFIER_nondet_int() [L210] COND TRUE \read(tmp___1) [L212] CALL stopSystem() [L436] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L443] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L212] RET stopSystem() [L219] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L243] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L250] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L258] CALL __utac_acc__Specification3_spec__1() [L450] int tmp ; [L451] int tmp___0 ; [L452] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L456] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L456] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L456] tmp = isMethaneLevelCritical() [L458] COND FALSE !(\read(tmp)) [L462] CALL, EXPR getWaterLevel() [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L462] RET, EXPR getWaterLevel() [L462] tmp___0 = getWaterLevel() [L464] COND TRUE tmp___0 == 2 [L466] CALL, EXPR isPumpRunning() [L350] int retValue_acc ; [L353] retValue_acc = pumpRunning [L354] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L466] RET, EXPR isPumpRunning() [L466] tmp___1 = isPumpRunning() [L468] COND FALSE !(\read(tmp___1)) [L472] CALL __automaton_fail() [L987] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 293 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 289 mSDsluCounter, 1203 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 756 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 128 IncrementalHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 447 mSDtfsCounter, 128 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=4, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-21 05:01:07,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE