./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_spec1_product07.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 699ded97cbb1126ff33cf78f7c5253f33e10fc954d477377647b1ae04749f3fb --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:22:34,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:22:34,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:22:34,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:22:34,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:22:34,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:22:34,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:22:34,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:22:34,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:22:34,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:22:34,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:22:34,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:22:34,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:22:34,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:22:34,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:22:34,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:22:34,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:22:34,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:22:34,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:22:34,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:22:34,588 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:22:34,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:22:34,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:22:34,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:22:34,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:22:34,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:22:34,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:22:34,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:22:34,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:22:34,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:22:34,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:22:34,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:22:34,603 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:22:34,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:22:34,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:22:34,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:22:34,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:22:34,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:22:34,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:22:34,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:22:34,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:22:34,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:22:34,610 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:22:34,637 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:22:34,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:22:34,638 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:22:34,638 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:22:34,639 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:22:34,639 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:22:34,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:22:34,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:22:34,640 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:22:34,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:22:34,641 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:22:34,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:22:34,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:22:34,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:22:34,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:22:34,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:22:34,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:22:34,643 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:22:34,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:22:34,644 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:22:34,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:22:34,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:22:34,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:22:34,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:22:34,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:22:34,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:22:34,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:22:34,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:22:34,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:22:34,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:22:34,646 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:22:34,647 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:22:34,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:22:34,647 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 699ded97cbb1126ff33cf78f7c5253f33e10fc954d477377647b1ae04749f3fb [2022-07-19 17:22:34,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:22:34,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:22:34,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:22:34,910 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:22:34,910 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:22:34,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c [2022-07-19 17:22:34,971 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48e552974/d6ec03bb62f542768ff308b56e5b262f/FLAG1c4edcafa [2022-07-19 17:22:35,367 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:22:35,368 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c [2022-07-19 17:22:35,381 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48e552974/d6ec03bb62f542768ff308b56e5b262f/FLAG1c4edcafa [2022-07-19 17:22:35,393 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48e552974/d6ec03bb62f542768ff308b56e5b262f [2022-07-19 17:22:35,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:22:35,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:22:35,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:22:35,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:22:35,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:22:35,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:22:35" (1/1) ... [2022-07-19 17:22:35,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee6de13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:35, skipping insertion in model container [2022-07-19 17:22:35,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:22:35" (1/1) ... [2022-07-19 17:22:35,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:22:35,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:22:35,607 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_spec1_product07.cil.c[3211,3224] [2022-07-19 17:22:35,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:22:35,678 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:22:35,695 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_spec1_product07.cil.c[3211,3224] [2022-07-19 17:22:35,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:22:35,754 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:22:35,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:35 WrapperNode [2022-07-19 17:22:35,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:22:35,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:22:35,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:22:35,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:22:35,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:35" (1/1) ... [2022-07-19 17:22:35,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:35" (1/1) ... [2022-07-19 17:22:35,802 INFO L137 Inliner]: procedures = 51, calls = 150, calls flagged for inlining = 18, calls inlined = 15, statements flattened = 204 [2022-07-19 17:22:35,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:22:35,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:22:35,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:22:35,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:22:35,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:35" (1/1) ... [2022-07-19 17:22:35,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:35" (1/1) ... [2022-07-19 17:22:35,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:35" (1/1) ... [2022-07-19 17:22:35,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:35" (1/1) ... [2022-07-19 17:22:35,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:35" (1/1) ... [2022-07-19 17:22:35,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:35" (1/1) ... [2022-07-19 17:22:35,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:35" (1/1) ... [2022-07-19 17:22:35,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:22:35,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:22:35,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:22:35,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:22:35,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:35" (1/1) ... [2022-07-19 17:22:35,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:22:35,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:22:35,871 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) [2022-07-19 17:22:35,884 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 [2022-07-19 17:22:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:22:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-19 17:22:35,911 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-19 17:22:35,911 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-19 17:22:35,911 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-19 17:22:35,911 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-19 17:22:35,911 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-19 17:22:35,912 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-19 17:22:35,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-19 17:22:35,912 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-19 17:22:35,912 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-19 17:22:35,912 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-19 17:22:35,912 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-19 17:22:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:22:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-19 17:22:35,913 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-19 17:22:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:22:35,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:22:35,976 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:22:35,978 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:22:36,276 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:22:36,282 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:22:36,285 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 17:22:36,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:22:36 BoogieIcfgContainer [2022-07-19 17:22:36,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:22:36,297 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:22:36,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:22:36,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:22:36,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:22:35" (1/3) ... [2022-07-19 17:22:36,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5363ee42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:22:36, skipping insertion in model container [2022-07-19 17:22:36,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:35" (2/3) ... [2022-07-19 17:22:36,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5363ee42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:22:36, skipping insertion in model container [2022-07-19 17:22:36,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:22:36" (3/3) ... [2022-07-19 17:22:36,306 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product07.cil.c [2022-07-19 17:22:36,324 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:22:36,325 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:22:36,365 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:22:36,371 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@75daf90f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5b822e2f [2022-07-19 17:22:36,371 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:22:36,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 65 states have internal predecessors, (80), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-07-19 17:22:36,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-19 17:22:36,383 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:22:36,384 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] [2022-07-19 17:22:36,385 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:22:36,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:22:36,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1089511908, now seen corresponding path program 1 times [2022-07-19 17:22:36,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:22:36,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347890986] [2022-07-19 17:22:36,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:22:36,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:22:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:36,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:22:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:36,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:22:36,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:22:36,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347890986] [2022-07-19 17:22:36,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347890986] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:22:36,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:22:36,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 17:22:36,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914008353] [2022-07-19 17:22:36,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:22:36,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 17:22:36,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:22:36,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 17:22:36,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:22:36,696 INFO L87 Difference]: Start difference. First operand has 79 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 65 states have internal predecessors, (80), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-07-19 17:22:36,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:22:36,736 INFO L93 Difference]: Finished difference Result 150 states and 203 transitions. [2022-07-19 17:22:36,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 17:22:36,738 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 23 [2022-07-19 17:22:36,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:22:36,748 INFO L225 Difference]: With dead ends: 150 [2022-07-19 17:22:36,749 INFO L226 Difference]: Without dead ends: 70 [2022-07-19 17:22:36,753 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 [2022-07-19 17:22:36,757 INFO L413 NwaCegarLoop]: 98 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, 98 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 [2022-07-19 17:22:36,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:22:36,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-07-19 17:22:36,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-07-19 17:22:36,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 51 states have (on average 1.2941176470588236) internal successors, (66), 57 states have internal predecessors, (66), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-19 17:22:36,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2022-07-19 17:22:36,822 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 23 [2022-07-19 17:22:36,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:22:36,823 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2022-07-19 17:22:36,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-07-19 17:22:36,824 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2022-07-19 17:22:36,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-19 17:22:36,827 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:22:36,828 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] [2022-07-19 17:22:36,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 17:22:36,828 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:22:36,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:22:36,831 INFO L85 PathProgramCache]: Analyzing trace with hash -2008002400, now seen corresponding path program 1 times [2022-07-19 17:22:36,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:22:36,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742477150] [2022-07-19 17:22:36,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:22:36,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:22:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:36,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 17:22:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:36,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:22:36,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:22:36,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742477150] [2022-07-19 17:22:36,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742477150] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:22:36,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:22:36,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:22:36,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687910625] [2022-07-19 17:22:36,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:22:36,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:22:36,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:22:36,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:22:36,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:22:36,941 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-07-19 17:22:36,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:22:36,957 INFO L93 Difference]: Finished difference Result 102 states and 128 transitions. [2022-07-19 17:22:36,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:22:36,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 24 [2022-07-19 17:22:36,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:22:36,967 INFO L225 Difference]: With dead ends: 102 [2022-07-19 17:22:36,968 INFO L226 Difference]: Without dead ends: 61 [2022-07-19 17:22:36,968 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 [2022-07-19 17:22:36,969 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 16 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 131 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 [2022-07-19 17:22:36,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 131 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:22:36,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-07-19 17:22:36,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-07-19 17:22:36,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 51 states have internal predecessors, (59), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-19 17:22:36,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 77 transitions. [2022-07-19 17:22:36,979 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 77 transitions. Word has length 24 [2022-07-19 17:22:36,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:22:36,980 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 77 transitions. [2022-07-19 17:22:36,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-07-19 17:22:36,980 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 77 transitions. [2022-07-19 17:22:36,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-19 17:22:36,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:22:36,981 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] [2022-07-19 17:22:36,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 17:22:36,982 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:22:36,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:22:36,982 INFO L85 PathProgramCache]: Analyzing trace with hash -184912456, now seen corresponding path program 1 times [2022-07-19 17:22:36,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:22:36,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132952520] [2022-07-19 17:22:36,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:22:36,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:22:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:37,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 17:22:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:37,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:22:37,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:22:37,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132952520] [2022-07-19 17:22:37,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132952520] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:22:37,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:22:37,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:22:37,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432028527] [2022-07-19 17:22:37,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:22:37,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:22:37,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:22:37,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:22:37,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:22:37,071 INFO L87 Difference]: Start difference. First operand 61 states and 77 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-07-19 17:22:37,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:22:37,255 INFO L93 Difference]: Finished difference Result 210 states and 272 transitions. [2022-07-19 17:22:37,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 17:22:37,256 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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 28 [2022-07-19 17:22:37,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:22:37,258 INFO L225 Difference]: With dead ends: 210 [2022-07-19 17:22:37,258 INFO L226 Difference]: Without dead ends: 156 [2022-07-19 17:22:37,259 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 [2022-07-19 17:22:37,260 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 203 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:22:37,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 359 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:22:37,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-07-19 17:22:37,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 150. [2022-07-19 17:22:37,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 109 states have (on average 1.348623853211009) internal successors, (147), 123 states have internal predecessors, (147), 23 states have call successors, (23), 17 states have call predecessors, (23), 17 states have return successors, (24), 17 states have call predecessors, (24), 23 states have call successors, (24) [2022-07-19 17:22:37,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 194 transitions. [2022-07-19 17:22:37,282 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 194 transitions. Word has length 28 [2022-07-19 17:22:37,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:22:37,282 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 194 transitions. [2022-07-19 17:22:37,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-07-19 17:22:37,283 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 194 transitions. [2022-07-19 17:22:37,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-19 17:22:37,284 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:22:37,284 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] [2022-07-19 17:22:37,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 17:22:37,285 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:22:37,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:22:37,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1927409760, now seen corresponding path program 1 times [2022-07-19 17:22:37,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:22:37,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194199522] [2022-07-19 17:22:37,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:22:37,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:22:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:37,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 17:22:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:37,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:22:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:37,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:22:37,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:22:37,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194199522] [2022-07-19 17:22:37,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194199522] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:22:37,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:22:37,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:22:37,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49194038] [2022-07-19 17:22:37,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:22:37,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:22:37,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:22:37,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:22:37,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:22:37,368 INFO L87 Difference]: Start difference. First operand 150 states and 194 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:22:37,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:22:37,447 INFO L93 Difference]: Finished difference Result 437 states and 578 transitions. [2022-07-19 17:22:37,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 17:22:37,448 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-07-19 17:22:37,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:22:37,452 INFO L225 Difference]: With dead ends: 437 [2022-07-19 17:22:37,452 INFO L226 Difference]: Without dead ends: 294 [2022-07-19 17:22:37,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:22:37,455 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 49 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:22:37,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 370 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:22:37,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-07-19 17:22:37,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 285. [2022-07-19 17:22:37,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 204 states have (on average 1.3284313725490196) internal successors, (271), 231 states have internal predecessors, (271), 46 states have call successors, (46), 34 states have call predecessors, (46), 34 states have return successors, (51), 34 states have call predecessors, (51), 46 states have call successors, (51) [2022-07-19 17:22:37,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 368 transitions. [2022-07-19 17:22:37,490 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 368 transitions. Word has length 33 [2022-07-19 17:22:37,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:22:37,490 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 368 transitions. [2022-07-19 17:22:37,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:22:37,491 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 368 transitions. [2022-07-19 17:22:37,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-19 17:22:37,493 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:22:37,493 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] [2022-07-19 17:22:37,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 17:22:37,494 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:22:37,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:22:37,495 INFO L85 PathProgramCache]: Analyzing trace with hash 691778524, now seen corresponding path program 1 times [2022-07-19 17:22:37,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:22:37,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43411004] [2022-07-19 17:22:37,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:22:37,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:22:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:37,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 17:22:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:37,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 17:22:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:37,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-19 17:22:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:37,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:22:37,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:22:37,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43411004] [2022-07-19 17:22:37,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43411004] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:22:37,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:22:37,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:22:37,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077710049] [2022-07-19 17:22:37,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:22:37,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:22:37,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:22:37,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:22:37,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:22:37,566 INFO L87 Difference]: Start difference. First operand 285 states and 368 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 17:22:37,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:22:37,664 INFO L93 Difference]: Finished difference Result 510 states and 664 transitions. [2022-07-19 17:22:37,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 17:22:37,665 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2022-07-19 17:22:37,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:22:37,666 INFO L225 Difference]: With dead ends: 510 [2022-07-19 17:22:37,666 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 17:22:37,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:22:37,669 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 50 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:22:37,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 124 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:22:37,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 17:22:37,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 17:22:37,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:22:37,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 17:22:37,671 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2022-07-19 17:22:37,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:22:37,671 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 17:22:37,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 17:22:37,672 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 17:22:37,672 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 17:22:37,674 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 17:22:37,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 17:22:37,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 17:22:38,228 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 246 253) the Hoare annotation is: true [2022-07-19 17:22:38,228 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 246 253) no Hoare annotation was computed. [2022-07-19 17:22:38,228 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 246 253) no Hoare annotation was computed. [2022-07-19 17:22:38,228 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 205 211) no Hoare annotation was computed. [2022-07-19 17:22:38,228 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 205 211) the Hoare annotation is: true [2022-07-19 17:22:38,229 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 82 93) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) [2022-07-19 17:22:38,229 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2022-07-19 17:22:38,229 INFO L899 garLoopResultBuilder]: For program point L86-1(lines 82 93) no Hoare annotation was computed. [2022-07-19 17:22:38,229 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 433 462) no Hoare annotation was computed. [2022-07-19 17:22:38,229 INFO L899 garLoopResultBuilder]: For program point L447(lines 447 451) no Hoare annotation was computed. [2022-07-19 17:22:38,229 INFO L902 garLoopResultBuilder]: At program point L447-1(lines 447 451) the Hoare annotation is: true [2022-07-19 17:22:38,229 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 433 462) the Hoare annotation is: true [2022-07-19 17:22:38,229 INFO L899 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2022-07-19 17:22:38,229 INFO L902 garLoopResultBuilder]: At program point L443-2(lines 443 457) the Hoare annotation is: true [2022-07-19 17:22:38,229 INFO L902 garLoopResultBuilder]: At program point L439(line 439) the Hoare annotation is: true [2022-07-19 17:22:38,229 INFO L899 garLoopResultBuilder]: For program point L439-1(line 439) no Hoare annotation was computed. [2022-07-19 17:22:38,230 INFO L902 garLoopResultBuilder]: At program point L458(lines 433 462) the Hoare annotation is: true [2022-07-19 17:22:38,230 INFO L899 garLoopResultBuilder]: For program point L454(line 454) no Hoare annotation was computed. [2022-07-19 17:22:38,230 INFO L899 garLoopResultBuilder]: For program point L192-1(lines 192 198) no Hoare annotation was computed. [2022-07-19 17:22:38,230 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 229) no Hoare annotation was computed. [2022-07-19 17:22:38,230 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 234) no Hoare annotation was computed. [2022-07-19 17:22:38,230 INFO L899 garLoopResultBuilder]: For program point L168(line 168) no Hoare annotation was computed. [2022-07-19 17:22:38,230 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 181 204) no Hoare annotation was computed. [2022-07-19 17:22:38,230 INFO L895 garLoopResultBuilder]: At program point L259(line 259) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:22:38,230 INFO L899 garLoopResultBuilder]: For program point L259-1(line 259) no Hoare annotation was computed. [2022-07-19 17:22:38,230 INFO L899 garLoopResultBuilder]: For program point L185-1(lines 184 203) no Hoare annotation was computed. [2022-07-19 17:22:38,230 INFO L895 garLoopResultBuilder]: At program point L144(line 144) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-19 17:22:38,231 INFO L899 garLoopResultBuilder]: For program point L144-1(line 144) no Hoare annotation was computed. [2022-07-19 17:22:38,231 INFO L895 garLoopResultBuilder]: At program point L169(lines 164 171) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:22:38,231 INFO L895 garLoopResultBuilder]: At program point L227(line 227) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:22:38,231 INFO L895 garLoopResultBuilder]: At program point L223(line 223) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:22:38,231 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 66) no Hoare annotation was computed. [2022-07-19 17:22:38,231 INFO L895 garLoopResultBuilder]: At program point L62-2(lines 58 69) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:22:38,231 INFO L895 garLoopResultBuilder]: At program point L232(line 232) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2022-07-19 17:22:38,231 INFO L895 garLoopResultBuilder]: At program point L232-1(lines 213 237) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2022-07-19 17:22:38,231 INFO L895 garLoopResultBuilder]: At program point L261(lines 254 264) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:22:38,231 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 156) no Hoare annotation was computed. [2022-07-19 17:22:38,232 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 159) no Hoare annotation was computed. [2022-07-19 17:22:38,232 INFO L895 garLoopResultBuilder]: At program point L146-1(lines 138 162) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~pumpRunning~0 0)) (or .cse0 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0) (not (= ~methaneLevelCritical~0 0))))) [2022-07-19 17:22:38,232 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 181 204) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-19 17:22:38,232 INFO L895 garLoopResultBuilder]: At program point L270(lines 265 273) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0))))) [2022-07-19 17:22:38,232 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 181 204) no Hoare annotation was computed. [2022-07-19 17:22:38,232 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 168) no Hoare annotation was computed. [2022-07-19 17:22:38,232 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 94 102) the Hoare annotation is: true [2022-07-19 17:22:38,232 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 94 102) no Hoare annotation was computed. [2022-07-19 17:22:38,232 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 94 102) no Hoare annotation was computed. [2022-07-19 17:22:38,233 INFO L899 garLoopResultBuilder]: For program point L514-2(lines 514 521) no Hoare annotation was computed. [2022-07-19 17:22:38,233 INFO L895 garLoopResultBuilder]: At program point L382(lines 337 384) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:22:38,233 INFO L895 garLoopResultBuilder]: At program point L349(line 349) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:22:38,233 INFO L895 garLoopResultBuilder]: At program point L316(line 316) the Hoare annotation is: false [2022-07-19 17:22:38,233 INFO L902 garLoopResultBuilder]: At program point L523(lines 504 526) the Hoare annotation is: true [2022-07-19 17:22:38,233 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 17:22:38,233 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 17:22:38,233 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 17:22:38,233 INFO L895 garLoopResultBuilder]: At program point L412(lines 408 414) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-19 17:22:38,233 INFO L899 garLoopResultBuilder]: For program point L338(lines 337 384) no Hoare annotation was computed. [2022-07-19 17:22:38,234 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 380) no Hoare annotation was computed. [2022-07-19 17:22:38,234 INFO L895 garLoopResultBuilder]: At program point L491(lines 487 493) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) [2022-07-19 17:22:38,234 INFO L895 garLoopResultBuilder]: At program point L359(line 359) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:22:38,234 INFO L902 garLoopResultBuilder]: At program point L388(lines 327 392) the Hoare annotation is: true [2022-07-19 17:22:38,234 INFO L895 garLoopResultBuilder]: At program point L322(lines 310 324) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:22:38,234 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 17:22:38,234 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 353) no Hoare annotation was computed. [2022-07-19 17:22:38,234 INFO L899 garLoopResultBuilder]: For program point L347-1(lines 347 353) no Hoare annotation was computed. [2022-07-19 17:22:38,234 INFO L899 garLoopResultBuilder]: For program point L314(lines 314 320) no Hoare annotation was computed. [2022-07-19 17:22:38,234 INFO L899 garLoopResultBuilder]: For program point L314-1(lines 314 320) no Hoare annotation was computed. [2022-07-19 17:22:38,235 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 343) no Hoare annotation was computed. [2022-07-19 17:22:38,235 INFO L895 garLoopResultBuilder]: At program point L385(lines 336 386) the Hoare annotation is: false [2022-07-19 17:22:38,235 INFO L899 garLoopResultBuilder]: For program point L373(lines 373 379) no Hoare annotation was computed. [2022-07-19 17:22:38,235 INFO L902 garLoopResultBuilder]: At program point L501(lines 494 503) the Hoare annotation is: true [2022-07-19 17:22:38,235 INFO L895 garLoopResultBuilder]: At program point L373-2(lines 367 380) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:22:38,235 INFO L895 garLoopResultBuilder]: At program point L427(lines 422 430) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) [2022-07-19 17:22:38,235 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 363) no Hoare annotation was computed. [2022-07-19 17:22:38,235 INFO L899 garLoopResultBuilder]: For program point L357-1(lines 357 363) no Hoare annotation was computed. [2022-07-19 17:22:38,235 INFO L895 garLoopResultBuilder]: At program point L419(lines 415 421) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-19 17:22:38,235 INFO L899 garLoopResultBuilder]: For program point L514(lines 514 521) no Hoare annotation was computed. [2022-07-19 17:22:38,235 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2022-07-19 17:22:38,236 INFO L899 garLoopResultBuilder]: For program point L74-1(lines 70 81) no Hoare annotation was computed. [2022-07-19 17:22:38,236 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 70 81) the Hoare annotation is: true [2022-07-19 17:22:38,240 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-19 17:22:38,242 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 17:22:38,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 05:22:38 BoogieIcfgContainer [2022-07-19 17:22:38,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 17:22:38,266 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 17:22:38,266 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 17:22:38,266 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 17:22:38,267 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:22:36" (3/4) ... [2022-07-19 17:22:38,269 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 17:22:38,275 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-19 17:22:38,275 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-19 17:22:38,275 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-19 17:22:38,275 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-19 17:22:38,275 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-19 17:22:38,275 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-07-19 17:22:38,276 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-19 17:22:38,281 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2022-07-19 17:22:38,282 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-19 17:22:38,282 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-19 17:22:38,283 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-19 17:22:38,283 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 17:22:38,284 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 17:22:38,284 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 17:22:38,305 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive [2022-07-19 17:22:38,306 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && tmp == systemActive) && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive [2022-07-19 17:22:38,308 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-19 17:22:38,309 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) [2022-07-19 17:22:38,310 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) [2022-07-19 17:22:38,310 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-19 17:22:38,310 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 0)) [2022-07-19 17:22:38,310 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-19 17:22:38,338 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 17:22:38,338 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 17:22:38,339 INFO L158 Benchmark]: Toolchain (without parser) took 2942.07ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 48.3MB in the beginning and 44.0MB in the end (delta: 4.3MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2022-07-19 17:22:38,339 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 17:22:38,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.95ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 48.2MB in the beginning and 86.0MB in the end (delta: -37.9MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2022-07-19 17:22:38,339 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.45ms. Allocated memory is still 115.3MB. Free memory was 86.0MB in the beginning and 83.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:22:38,340 INFO L158 Benchmark]: Boogie Preprocessor took 22.93ms. Allocated memory is still 115.3MB. Free memory was 83.9MB in the beginning and 82.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:22:38,340 INFO L158 Benchmark]: RCFGBuilder took 468.39ms. Allocated memory is still 115.3MB. Free memory was 82.3MB in the beginning and 67.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-19 17:22:38,341 INFO L158 Benchmark]: TraceAbstraction took 1968.55ms. Allocated memory is still 115.3MB. Free memory was 66.4MB in the beginning and 49.0MB in the end (delta: 17.4MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2022-07-19 17:22:38,341 INFO L158 Benchmark]: Witness Printer took 72.10ms. Allocated memory is still 115.3MB. Free memory was 49.0MB in the beginning and 44.0MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 17:22:38,343 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 88.1MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.95ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 48.2MB in the beginning and 86.0MB in the end (delta: -37.9MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.45ms. Allocated memory is still 115.3MB. Free memory was 86.0MB in the beginning and 83.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.93ms. Allocated memory is still 115.3MB. Free memory was 83.9MB in the beginning and 82.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 468.39ms. Allocated memory is still 115.3MB. Free memory was 82.3MB in the beginning and 67.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1968.55ms. Allocated memory is still 115.3MB. Free memory was 66.4MB in the beginning and 49.0MB in the end (delta: 17.4MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * Witness Printer took 72.10ms. Allocated memory is still 115.3MB. Free memory was 49.0MB in the beginning and 44.0MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 168]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 326 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 318 mSDsluCounter, 1082 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 682 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 203 IncrementalHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 400 mSDtfsCounter, 203 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=285occurred in iteration=4, InterpolantAutomatonStates: 25, 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, 5 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 379 PreInvPairs, 445 NumberOfFragments, 215 HoareAnnotationTreeSize, 379 FomulaSimplifications, 52 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 36 FomulaSimplificationsInter, 1632 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 298 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 415]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 487]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && tmp == systemActive) && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive - InvariantResult [Line: 310]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 422]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive - InvariantResult [Line: 213]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 254]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 336]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 265]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 0)) - InvariantResult [Line: 433]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 337]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 RESULT: Ultimate proved your program to be correct! [2022-07-19 17:22:38,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE