./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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_product44.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 40ec21bd2775f54496a6d376e4b1b562b086a4c18151452e7b83204c384db515 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 13:15:29,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 13:15:29,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 13:15:29,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 13:15:29,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 13:15:29,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 13:15:29,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 13:15:29,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 13:15:29,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 13:15:29,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 13:15:29,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 13:15:29,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 13:15:29,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 13:15:29,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 13:15:29,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 13:15:29,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 13:15:29,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 13:15:29,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 13:15:29,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 13:15:29,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 13:15:29,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 13:15:29,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 13:15:29,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 13:15:29,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 13:15:29,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 13:15:29,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 13:15:29,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 13:15:29,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 13:15:29,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 13:15:29,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 13:15:29,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 13:15:29,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 13:15:29,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 13:15:29,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 13:15:29,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 13:15:29,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 13:15:29,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 13:15:29,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 13:15:29,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 13:15:29,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 13:15:29,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 13:15:29,732 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 13:15:29,754 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 13:15:29,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 13:15:29,763 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 13:15:29,763 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 13:15:29,764 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 13:15:29,764 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 13:15:29,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 13:15:29,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 13:15:29,765 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 13:15:29,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 13:15:29,766 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 13:15:29,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 13:15:29,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 13:15:29,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 13:15:29,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 13:15:29,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 13:15:29,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 13:15:29,768 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 13:15:29,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 13:15:29,768 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 13:15:29,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 13:15:29,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 13:15:29,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 13:15:29,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 13:15:29,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:15:29,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 13:15:29,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 13:15:29,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 13:15:29,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 13:15:29,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 13:15:29,770 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 13:15:29,771 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 13:15:29,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 13:15:29,771 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 13:15:29,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40ec21bd2775f54496a6d376e4b1b562b086a4c18151452e7b83204c384db515 [2021-12-21 13:15:29,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 13:15:30,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 13:15:30,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 13:15:30,018 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 13:15:30,019 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 13:15:30,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2021-12-21 13:15:30,086 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04725d6fd/f8829c19087e4612a047ded60a94631a/FLAG56a3ae680 [2021-12-21 13:15:30,471 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 13:15:30,471 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2021-12-21 13:15:30,483 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04725d6fd/f8829c19087e4612a047ded60a94631a/FLAG56a3ae680 [2021-12-21 13:15:30,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04725d6fd/f8829c19087e4612a047ded60a94631a [2021-12-21 13:15:30,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 13:15:30,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 13:15:30,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 13:15:30,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 13:15:30,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 13:15:30,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:15:30" (1/1) ... [2021-12-21 13:15:30,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c680ce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:30, skipping insertion in model container [2021-12-21 13:15:30,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:15:30" (1/1) ... [2021-12-21 13:15:30,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 13:15:30,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 13:15:30,706 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_product44.cil.c[5279,5292] [2021-12-21 13:15:30,776 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:15:30,788 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 13:15:30,818 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_product44.cil.c[5279,5292] [2021-12-21 13:15:30,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:15:30,903 INFO L208 MainTranslator]: Completed translation [2021-12-21 13:15:30,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:30 WrapperNode [2021-12-21 13:15:30,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 13:15:30,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 13:15:30,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 13:15:30,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 13:15:30,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:30" (1/1) ... [2021-12-21 13:15:30,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:30" (1/1) ... [2021-12-21 13:15:30,974 INFO L137 Inliner]: procedures = 55, calls = 155, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 256 [2021-12-21 13:15:30,976 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 13:15:30,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 13:15:30,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 13:15:30,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 13:15:30,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:30" (1/1) ... [2021-12-21 13:15:30,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:30" (1/1) ... [2021-12-21 13:15:30,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:30" (1/1) ... [2021-12-21 13:15:31,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:30" (1/1) ... [2021-12-21 13:15:31,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:30" (1/1) ... [2021-12-21 13:15:31,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:30" (1/1) ... [2021-12-21 13:15:31,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:30" (1/1) ... [2021-12-21 13:15:31,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 13:15:31,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 13:15:31,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 13:15:31,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 13:15:31,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:30" (1/1) ... [2021-12-21 13:15:31,036 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:15:31,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:15:31,055 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) [2021-12-21 13:15:31,058 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 [2021-12-21 13:15:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 13:15:31,081 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-21 13:15:31,081 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-21 13:15:31,081 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-21 13:15:31,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-21 13:15:31,081 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-21 13:15:31,081 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-21 13:15:31,081 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-21 13:15:31,081 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-21 13:15:31,082 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-21 13:15:31,082 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-21 13:15:31,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 13:15:31,082 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-21 13:15:31,082 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-21 13:15:31,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 13:15:31,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 13:15:31,151 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 13:15:31,152 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 13:15:31,366 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 13:15:31,372 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 13:15:31,372 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 13:15:31,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:15:31 BoogieIcfgContainer [2021-12-21 13:15:31,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 13:15:31,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 13:15:31,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 13:15:31,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 13:15:31,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:15:30" (1/3) ... [2021-12-21 13:15:31,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a328ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:15:31, skipping insertion in model container [2021-12-21 13:15:31,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:30" (2/3) ... [2021-12-21 13:15:31,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a328ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:15:31, skipping insertion in model container [2021-12-21 13:15:31,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:15:31" (3/3) ... [2021-12-21 13:15:31,380 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2021-12-21 13:15:31,383 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 13:15:31,384 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 13:15:31,416 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 13:15:31,422 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 13:15:31,422 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 13:15:31,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 68 states have (on average 1.3823529411764706) internal successors, (94), 74 states have internal predecessors, (94), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-21 13:15:31,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-21 13:15:31,447 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:31,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:15:31,449 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:31,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:31,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1354277059, now seen corresponding path program 1 times [2021-12-21 13:15:31,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:31,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281605962] [2021-12-21 13:15:31,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:31,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:31,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 13:15:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:31,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:31,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:31,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281605962] [2021-12-21 13:15:31,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281605962] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:31,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:31,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 13:15:31,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363409441] [2021-12-21 13:15:31,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:31,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 13:15:31,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:31,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 13:15:31,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 13:15:31,736 INFO L87 Difference]: Start difference. First operand has 86 states, 68 states have (on average 1.3823529411764706) internal successors, (94), 74 states have internal predecessors, (94), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) 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) [2021-12-21 13:15:31,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:31,794 INFO L93 Difference]: Finished difference Result 164 states and 223 transitions. [2021-12-21 13:15:31,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 13:15:31,796 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 [2021-12-21 13:15:31,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:31,812 INFO L225 Difference]: With dead ends: 164 [2021-12-21 13:15:31,813 INFO L226 Difference]: Without dead ends: 77 [2021-12-21 13:15:31,816 INFO L932 BasicCegarLoop]: 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 [2021-12-21 13:15:31,820 INFO L933 BasicCegarLoop]: 108 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, 108 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 [2021-12-21 13:15:31,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:15:31,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-12-21 13:15:31,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-12-21 13:15:31,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 66 states have internal predecessors, (80), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-21 13:15:31,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2021-12-21 13:15:31,879 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 25 [2021-12-21 13:15:31,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:31,880 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2021-12-21 13:15:31,880 INFO L471 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) [2021-12-21 13:15:31,880 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2021-12-21 13:15:31,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-21 13:15:31,884 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:31,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:15:31,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 13:15:31,885 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:31,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:31,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1985957409, now seen corresponding path program 1 times [2021-12-21 13:15:31,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:31,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715090782] [2021-12-21 13:15:31,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:31,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:31,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 13:15:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:32,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:32,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:32,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715090782] [2021-12-21 13:15:32,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715090782] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:32,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:32,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 13:15:32,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438863376] [2021-12-21 13:15:32,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:32,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:15:32,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:32,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:15:32,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:15:32,003 INFO L87 Difference]: Start difference. First operand 77 states and 99 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) [2021-12-21 13:15:32,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:32,016 INFO L93 Difference]: Finished difference Result 115 states and 148 transitions. [2021-12-21 13:15:32,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:15:32,018 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 [2021-12-21 13:15:32,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:32,022 INFO L225 Difference]: With dead ends: 115 [2021-12-21 13:15:32,024 INFO L226 Difference]: Without dead ends: 68 [2021-12-21 13:15:32,027 INFO L932 BasicCegarLoop]: 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 [2021-12-21 13:15:32,028 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 18 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 150 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 [2021-12-21 13:15:32,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 150 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:15:32,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-12-21 13:15:32,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-12-21 13:15:32,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 60 states have internal predecessors, (73), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-21 13:15:32,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 87 transitions. [2021-12-21 13:15:32,035 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 87 transitions. Word has length 26 [2021-12-21 13:15:32,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:32,035 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 87 transitions. [2021-12-21 13:15:32,038 INFO L471 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) [2021-12-21 13:15:32,038 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2021-12-21 13:15:32,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-21 13:15:32,044 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:32,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:15:32,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 13:15:32,044 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:32,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:32,045 INFO L85 PathProgramCache]: Analyzing trace with hash -778007147, now seen corresponding path program 1 times [2021-12-21 13:15:32,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:32,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381890142] [2021-12-21 13:15:32,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:32,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:32,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 13:15:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:32,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:32,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:32,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381890142] [2021-12-21 13:15:32,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381890142] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:32,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:32,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 13:15:32,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508957025] [2021-12-21 13:15:32,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:32,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 13:15:32,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:32,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 13:15:32,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 13:15:32,136 INFO L87 Difference]: Start difference. First operand 68 states and 87 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-12-21 13:15:32,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:32,241 INFO L93 Difference]: Finished difference Result 170 states and 222 transitions. [2021-12-21 13:15:32,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 13:15:32,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 31 [2021-12-21 13:15:32,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:32,245 INFO L225 Difference]: With dead ends: 170 [2021-12-21 13:15:32,247 INFO L226 Difference]: Without dead ends: 109 [2021-12-21 13:15:32,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-21 13:15:32,249 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 155 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:32,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 306 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:15:32,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-12-21 13:15:32,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2021-12-21 13:15:32,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 83 states have (on average 1.3493975903614457) internal successors, (112), 90 states have internal predecessors, (112), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (12), 10 states have call predecessors, (12), 11 states have call successors, (12) [2021-12-21 13:15:32,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2021-12-21 13:15:32,265 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 135 transitions. Word has length 31 [2021-12-21 13:15:32,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:32,266 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 135 transitions. [2021-12-21 13:15:32,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-12-21 13:15:32,266 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2021-12-21 13:15:32,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-21 13:15:32,267 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:32,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:15:32,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 13:15:32,268 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:32,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:32,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1260009755, now seen corresponding path program 1 times [2021-12-21 13:15:32,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:32,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961345833] [2021-12-21 13:15:32,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:32,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:32,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:15:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:32,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:32,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:32,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961345833] [2021-12-21 13:15:32,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961345833] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:32,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:32,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 13:15:32,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265365399] [2021-12-21 13:15:32,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:32,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 13:15:32,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:32,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 13:15:32,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 13:15:32,366 INFO L87 Difference]: Start difference. First operand 104 states and 135 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) [2021-12-21 13:15:32,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:32,430 INFO L93 Difference]: Finished difference Result 292 states and 395 transitions. [2021-12-21 13:15:32,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 13:15:32,431 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 [2021-12-21 13:15:32,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:32,435 INFO L225 Difference]: With dead ends: 292 [2021-12-21 13:15:32,435 INFO L226 Difference]: Without dead ends: 195 [2021-12-21 13:15:32,437 INFO L932 BasicCegarLoop]: 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 [2021-12-21 13:15:32,442 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 56 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:32,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 343 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:15:32,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-12-21 13:15:32,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 189. [2021-12-21 13:15:32,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 150 states have (on average 1.3266666666666667) internal successors, (199), 161 states have internal predecessors, (199), 22 states have call successors, (22), 18 states have call predecessors, (22), 16 states have return successors, (27), 18 states have call predecessors, (27), 22 states have call successors, (27) [2021-12-21 13:15:32,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 248 transitions. [2021-12-21 13:15:32,491 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 248 transitions. Word has length 34 [2021-12-21 13:15:32,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:32,491 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 248 transitions. [2021-12-21 13:15:32,491 INFO L471 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) [2021-12-21 13:15:32,492 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 248 transitions. [2021-12-21 13:15:32,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-21 13:15:32,496 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:32,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:15:32,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 13:15:32,496 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:32,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:32,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1823553547, now seen corresponding path program 1 times [2021-12-21 13:15:32,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:32,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249569096] [2021-12-21 13:15:32,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:32,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 13:15:32,532 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 13:15:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 13:15:32,595 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 13:15:32,596 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 13:15:32,596 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 13:15:32,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 13:15:32,603 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-21 13:15:32,606 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 13:15:32,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 01:15:32 BoogieIcfgContainer [2021-12-21 13:15:32,652 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 13:15:32,653 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 13:15:32,653 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 13:15:32,653 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 13:15:32,654 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:15:31" (3/4) ... [2021-12-21 13:15:32,655 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-21 13:15:32,700 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 13:15:32,700 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 13:15:32,701 INFO L158 Benchmark]: Toolchain (without parser) took 2202.49ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 58.0MB in the beginning and 79.6MB in the end (delta: -21.6MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2021-12-21 13:15:32,701 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 90.2MB. Free memory was 47.2MB in the beginning and 47.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 13:15:32,702 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.40ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 57.7MB in the beginning and 83.4MB in the end (delta: -25.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 13:15:32,702 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.87ms. Allocated memory is still 115.3MB. Free memory was 83.4MB in the beginning and 80.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 13:15:32,702 INFO L158 Benchmark]: Boogie Preprocessor took 41.16ms. Allocated memory is still 115.3MB. Free memory was 80.7MB in the beginning and 79.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 13:15:32,703 INFO L158 Benchmark]: RCFGBuilder took 355.50ms. Allocated memory is still 115.3MB. Free memory was 79.2MB in the beginning and 63.0MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-21 13:15:32,703 INFO L158 Benchmark]: TraceAbstraction took 1277.39ms. Allocated memory is still 115.3MB. Free memory was 62.4MB in the beginning and 83.8MB in the end (delta: -21.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 13:15:32,703 INFO L158 Benchmark]: Witness Printer took 47.64ms. Allocated memory is still 115.3MB. Free memory was 83.8MB in the beginning and 79.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 13:15:32,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 90.2MB. Free memory was 47.2MB in the beginning and 47.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.40ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 57.7MB in the beginning and 83.4MB in the end (delta: -25.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.87ms. Allocated memory is still 115.3MB. Free memory was 83.4MB in the beginning and 80.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.16ms. Allocated memory is still 115.3MB. Free memory was 80.7MB in the beginning and 79.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 355.50ms. Allocated memory is still 115.3MB. Free memory was 79.2MB in the beginning and 63.0MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1277.39ms. Allocated memory is still 115.3MB. Free memory was 62.4MB in the beginning and 83.8MB in the end (delta: -21.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 47.64ms. Allocated memory is still 115.3MB. Free memory was 83.8MB in the beginning and 79.6MB in the end (delta: 4.2MB). 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 - CounterExampleResult [Line: 328]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L195] int waterLevel = 1; [L196] int methaneLevelCritical = 0; [L502] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L703] int pumpRunning = 0; [L704] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L315] int retValue_acc ; [L318] retValue_acc = 1 [L319] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L897] int splverifierCounter ; [L898] int tmp ; [L899] int tmp___0 ; [L900] int tmp___1 ; [L901] int tmp___2 ; [L904] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L906] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L908] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L914] tmp = __VERIFIER_nondet_int() [L916] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L918] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L213] COND TRUE waterLevel < 2 [L214] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L918] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L924] tmp___0 = __VERIFIER_nondet_int() [L926] 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] [L934] tmp___2 = __VERIFIER_nondet_int() [L936] COND FALSE !(\read(tmp___2)) [L942] tmp___1 = __VERIFIER_nondet_int() [L944] COND TRUE \read(tmp___1) [L946] CALL stopSystem() [L876] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L883] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L946] RET stopSystem() [L953] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L710] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L717] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L725] CALL __utac_acc__Specification3_spec__1() [L159] int tmp ; [L160] int tmp___0 ; [L161] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L165] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L234] int retValue_acc ; [L237] retValue_acc = methaneLevelCritical [L238] 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] [L165] 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] [L165] tmp = isMethaneLevelCritical() [L167] COND FALSE !(\read(tmp)) [L171] CALL, EXPR getWaterLevel() [L266] int retValue_acc ; [L269] retValue_acc = waterLevel [L270] 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] [L171] RET, EXPR getWaterLevel() [L171] tmp___0 = getWaterLevel() [L173] COND TRUE tmp___0 == 2 [L175] CALL, EXPR isPumpRunning() [L809] int retValue_acc ; [L812] retValue_acc = pumpRunning [L813] 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] [L175] RET, EXPR isPumpRunning() [L175] tmp___1 = isPumpRunning() [L177] COND FALSE !(\read(tmp___1)) [L181] CALL __automaton_fail() [L328] 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 7 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 232 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 229 mSDsluCounter, 907 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 520 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 387 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=189occurred 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, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 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! [2021-12-21 13:15:32,743 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE