./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product16.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_product16.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 4fdaba9a943be1a84417ec0186b85075ad2a6a54eeb9563391984670e62b2cee --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 13:15:16,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 13:15:16,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 13:15:16,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 13:15:16,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 13:15:16,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 13:15:16,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 13:15:16,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 13:15:16,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 13:15:16,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 13:15:16,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 13:15:16,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 13:15:16,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 13:15:16,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 13:15:16,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 13:15:16,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 13:15:16,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 13:15:16,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 13:15:16,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 13:15:16,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 13:15:16,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 13:15:16,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 13:15:16,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 13:15:16,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 13:15:16,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 13:15:16,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 13:15:16,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 13:15:16,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 13:15:16,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 13:15:16,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 13:15:16,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 13:15:16,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 13:15:16,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 13:15:16,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 13:15:16,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 13:15:16,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 13:15:16,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 13:15:16,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 13:15:16,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 13:15:16,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 13:15:16,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 13:15:16,106 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 13:15:16,131 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 13:15:16,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 13:15:16,132 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 13:15:16,132 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 13:15:16,132 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 13:15:16,133 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 13:15:16,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 13:15:16,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 13:15:16,133 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 13:15:16,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 13:15:16,134 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 13:15:16,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 13:15:16,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 13:15:16,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 13:15:16,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 13:15:16,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 13:15:16,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 13:15:16,135 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 13:15:16,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 13:15:16,136 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 13:15:16,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 13:15:16,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 13:15:16,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 13:15:16,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 13:15:16,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:15:16,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 13:15:16,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 13:15:16,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 13:15:16,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 13:15:16,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 13:15:16,138 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 13:15:16,139 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 13:15:16,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 13:15:16,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 13:15:16,139 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fdaba9a943be1a84417ec0186b85075ad2a6a54eeb9563391984670e62b2cee [2021-12-21 13:15:16,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 13:15:16,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 13:15:16,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 13:15:16,353 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 13:15:16,354 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 13:15:16,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2021-12-21 13:15:16,399 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5d8020ba/0d0b854f275f4fecb5f2d41dea4e2413/FLAG9741b11c7 [2021-12-21 13:15:16,806 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 13:15:16,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2021-12-21 13:15:16,814 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5d8020ba/0d0b854f275f4fecb5f2d41dea4e2413/FLAG9741b11c7 [2021-12-21 13:15:17,185 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5d8020ba/0d0b854f275f4fecb5f2d41dea4e2413 [2021-12-21 13:15:17,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 13:15:17,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 13:15:17,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 13:15:17,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 13:15:17,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 13:15:17,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:15:17" (1/1) ... [2021-12-21 13:15:17,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc47bd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:17, skipping insertion in model container [2021-12-21 13:15:17,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:15:17" (1/1) ... [2021-12-21 13:15:17,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 13:15:17,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 13:15:17,345 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_product16.cil.c[1605,1618] [2021-12-21 13:15:17,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:15:17,436 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 13:15:17,444 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_product16.cil.c[1605,1618] [2021-12-21 13:15:17,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:15:17,503 INFO L208 MainTranslator]: Completed translation [2021-12-21 13:15:17,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:17 WrapperNode [2021-12-21 13:15:17,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 13:15:17,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 13:15:17,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 13:15:17,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 13:15:17,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:17" (1/1) ... [2021-12-21 13:15:17,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:17" (1/1) ... [2021-12-21 13:15:17,545 INFO L137 Inliner]: procedures = 53, calls = 154, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 210 [2021-12-21 13:15:17,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 13:15:17,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 13:15:17,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 13:15:17,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 13:15:17,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:17" (1/1) ... [2021-12-21 13:15:17,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:17" (1/1) ... [2021-12-21 13:15:17,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:17" (1/1) ... [2021-12-21 13:15:17,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:17" (1/1) ... [2021-12-21 13:15:17,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:17" (1/1) ... [2021-12-21 13:15:17,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:17" (1/1) ... [2021-12-21 13:15:17,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:17" (1/1) ... [2021-12-21 13:15:17,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 13:15:17,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 13:15:17,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 13:15:17,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 13:15:17,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:17" (1/1) ... [2021-12-21 13:15:17,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:15:17,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:15:17,603 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 13:15:17,610 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 13:15:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 13:15:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-21 13:15:17,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-21 13:15:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-21 13:15:17,632 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-21 13:15:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-21 13:15:17,632 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-21 13:15:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-21 13:15:17,632 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-21 13:15:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-21 13:15:17,632 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-21 13:15:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-21 13:15:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-21 13:15:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-21 13:15:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-21 13:15:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 13:15:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-21 13:15:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-21 13:15:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 13:15:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 13:15:17,682 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 13:15:17,683 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 13:15:17,906 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 13:15:17,913 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 13:15:17,913 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 13:15:17,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:15:17 BoogieIcfgContainer [2021-12-21 13:15:17,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 13:15:17,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 13:15:17,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 13:15:17,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 13:15:17,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:15:17" (1/3) ... [2021-12-21 13:15:17,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c99d34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:15:17, skipping insertion in model container [2021-12-21 13:15:17,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:17" (2/3) ... [2021-12-21 13:15:17,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c99d34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:15:17, skipping insertion in model container [2021-12-21 13:15:17,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:15:17" (3/3) ... [2021-12-21 13:15:17,934 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2021-12-21 13:15:17,938 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 13:15:17,938 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 13:15:17,984 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 13:15:17,989 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 13:15:17,989 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 13:15:18,016 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 63 states have (on average 1.3650793650793651) internal successors, (86), 70 states have internal predecessors, (86), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-21 13:15:18,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-21 13:15:18,022 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:18,022 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 13:15:18,023 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:18,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:18,028 INFO L85 PathProgramCache]: Analyzing trace with hash -210904548, now seen corresponding path program 1 times [2021-12-21 13:15:18,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:18,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598060092] [2021-12-21 13:15:18,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:18,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:18,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 13:15:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:18,239 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 13:15:18,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:18,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598060092] [2021-12-21 13:15:18,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598060092] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:18,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:18,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 13:15:18,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026350106] [2021-12-21 13:15:18,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:18,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 13:15:18,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:18,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 13:15:18,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 13:15:18,278 INFO L87 Difference]: Start difference. First operand has 86 states, 63 states have (on average 1.3650793650793651) internal successors, (86), 70 states have internal predecessors, (86), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:15:18,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:18,315 INFO L93 Difference]: Finished difference Result 164 states and 219 transitions. [2021-12-21 13:15:18,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 13:15:18,317 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 13:15:18,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:18,324 INFO L225 Difference]: With dead ends: 164 [2021-12-21 13:15:18,324 INFO L226 Difference]: Without dead ends: 77 [2021-12-21 13:15:18,330 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 13:15:18,333 INFO L933 BasicCegarLoop]: 106 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, 106 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 13:15:18,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:15:18,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-12-21 13:15:18,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-12-21 13:15:18,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 56 states have (on average 1.2857142857142858) internal successors, (72), 62 states have internal predecessors, (72), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-12-21 13:15:18,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 97 transitions. [2021-12-21 13:15:18,375 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 97 transitions. Word has length 25 [2021-12-21 13:15:18,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:18,376 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 97 transitions. [2021-12-21 13:15:18,376 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 13:15:18,376 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 97 transitions. [2021-12-21 13:15:18,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-21 13:15:18,377 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:18,378 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 13:15:18,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 13:15:18,378 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:18,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:18,382 INFO L85 PathProgramCache]: Analyzing trace with hash -385739180, now seen corresponding path program 1 times [2021-12-21 13:15:18,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:18,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895678983] [2021-12-21 13:15:18,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:18,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:18,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 13:15:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:18,446 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 13:15:18,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:18,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895678983] [2021-12-21 13:15:18,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895678983] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:18,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:18,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 13:15:18,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159749867] [2021-12-21 13:15:18,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:18,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:15:18,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:18,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:15:18,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:15:18,449 INFO L87 Difference]: Start difference. First operand 77 states and 97 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 13:15:18,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:18,468 INFO L93 Difference]: Finished difference Result 115 states and 143 transitions. [2021-12-21 13:15:18,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:15:18,469 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 13:15:18,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:18,470 INFO L225 Difference]: With dead ends: 115 [2021-12-21 13:15:18,470 INFO L226 Difference]: Without dead ends: 68 [2021-12-21 13:15:18,471 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 13:15:18,471 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 17 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 146 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 13:15:18,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 146 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:15:18,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-12-21 13:15:18,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-12-21 13:15:18,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 50 states have (on average 1.3) internal successors, (65), 56 states have internal predecessors, (65), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-21 13:15:18,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 85 transitions. [2021-12-21 13:15:18,477 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 85 transitions. Word has length 26 [2021-12-21 13:15:18,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:18,477 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 85 transitions. [2021-12-21 13:15:18,477 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 13:15:18,478 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 85 transitions. [2021-12-21 13:15:18,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-21 13:15:18,478 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:18,478 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 13:15:18,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 13:15:18,479 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:18,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:18,479 INFO L85 PathProgramCache]: Analyzing trace with hash 88146171, now seen corresponding path program 1 times [2021-12-21 13:15:18,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:18,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696937535] [2021-12-21 13:15:18,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:18,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:18,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 13:15:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:18,535 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 13:15:18,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:18,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696937535] [2021-12-21 13:15:18,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696937535] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:18,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:18,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 13:15:18,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936714165] [2021-12-21 13:15:18,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:18,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 13:15:18,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:18,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 13:15:18,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-21 13:15:18,536 INFO L87 Difference]: Start difference. First operand 68 states and 85 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 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 13:15:18,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:18,696 INFO L93 Difference]: Finished difference Result 248 states and 324 transitions. [2021-12-21 13:15:18,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 13:15:18,698 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 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 13:15:18,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:18,700 INFO L225 Difference]: With dead ends: 248 [2021-12-21 13:15:18,700 INFO L226 Difference]: Without dead ends: 187 [2021-12-21 13:15:18,701 INFO L932 BasicCegarLoop]: 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 [2021-12-21 13:15:18,701 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 243 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:18,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 423 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:15:18,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-12-21 13:15:18,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 165. [2021-12-21 13:15:18,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 120 states have (on average 1.3416666666666666) internal successors, (161), 134 states have internal predecessors, (161), 25 states have call successors, (25), 19 states have call predecessors, (25), 19 states have return successors, (26), 19 states have call predecessors, (26), 25 states have call successors, (26) [2021-12-21 13:15:18,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 212 transitions. [2021-12-21 13:15:18,718 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 212 transitions. Word has length 31 [2021-12-21 13:15:18,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:18,719 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 212 transitions. [2021-12-21 13:15:18,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 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 13:15:18,719 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 212 transitions. [2021-12-21 13:15:18,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-21 13:15:18,720 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:18,720 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 13:15:18,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 13:15:18,720 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:18,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:18,721 INFO L85 PathProgramCache]: Analyzing trace with hash -497555309, now seen corresponding path program 1 times [2021-12-21 13:15:18,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:18,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612366736] [2021-12-21 13:15:18,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:18,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:18,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:15:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:18,774 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 13:15:18,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:18,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612366736] [2021-12-21 13:15:18,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612366736] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:18,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:18,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 13:15:18,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966197880] [2021-12-21 13:15:18,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:18,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 13:15:18,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:18,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 13:15:18,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 13:15:18,777 INFO L87 Difference]: Start difference. First operand 165 states and 212 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 13:15:18,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:18,826 INFO L93 Difference]: Finished difference Result 473 states and 627 transitions. [2021-12-21 13:15:18,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 13:15:18,826 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 13:15:18,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:18,829 INFO L225 Difference]: With dead ends: 473 [2021-12-21 13:15:18,829 INFO L226 Difference]: Without dead ends: 315 [2021-12-21 13:15:18,830 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 13:15:18,831 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 55 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:18,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 349 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:15:18,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-12-21 13:15:18,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 306. [2021-12-21 13:15:18,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 220 states have (on average 1.3181818181818181) internal successors, (290), 244 states have internal predecessors, (290), 50 states have call successors, (50), 38 states have call predecessors, (50), 35 states have return successors, (56), 35 states have call predecessors, (56), 50 states have call successors, (56) [2021-12-21 13:15:18,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 396 transitions. [2021-12-21 13:15:18,853 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 396 transitions. Word has length 34 [2021-12-21 13:15:18,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:18,854 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 396 transitions. [2021-12-21 13:15:18,854 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 13:15:18,854 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 396 transitions. [2021-12-21 13:15:18,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-21 13:15:18,856 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:18,856 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 13:15:18,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 13:15:18,856 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:18,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:18,857 INFO L85 PathProgramCache]: Analyzing trace with hash 841670873, now seen corresponding path program 1 times [2021-12-21 13:15:18,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:18,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132224719] [2021-12-21 13:15:18,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:18,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 13:15:18,879 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 13:15:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 13:15:18,914 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 13:15:18,915 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 13:15:18,915 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 13:15:18,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 13:15:18,919 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-21 13:15:18,921 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 13:15:18,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 01:15:18 BoogieIcfgContainer [2021-12-21 13:15:18,951 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 13:15:18,951 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 13:15:18,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 13:15:18,951 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 13:15:18,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:15:17" (3/4) ... [2021-12-21 13:15:18,952 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-21 13:15:18,992 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 13:15:18,992 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 13:15:18,993 INFO L158 Benchmark]: Toolchain (without parser) took 1805.09ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 69.8MB in the beginning and 73.3MB in the end (delta: -3.5MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2021-12-21 13:15:18,993 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory was 57.4MB in the beginning and 57.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 13:15:18,993 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.77ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 69.8MB in the beginning and 88.7MB in the end (delta: -18.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 13:15:18,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.74ms. Allocated memory is still 121.6MB. Free memory was 88.7MB in the beginning and 86.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 13:15:18,994 INFO L158 Benchmark]: Boogie Preprocessor took 20.25ms. Allocated memory is still 121.6MB. Free memory was 86.6MB in the beginning and 85.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 13:15:18,994 INFO L158 Benchmark]: RCFGBuilder took 359.08ms. Allocated memory is still 121.6MB. Free memory was 85.0MB in the beginning and 69.6MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-21 13:15:18,994 INFO L158 Benchmark]: TraceAbstraction took 1023.42ms. Allocated memory is still 121.6MB. Free memory was 69.1MB in the beginning and 77.5MB in the end (delta: -8.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 13:15:18,994 INFO L158 Benchmark]: Witness Printer took 41.32ms. Allocated memory is still 121.6MB. Free memory was 77.5MB in the beginning and 73.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 13:15:18,995 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory was 57.4MB in the beginning and 57.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.77ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 69.8MB in the beginning and 88.7MB in the end (delta: -18.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.74ms. Allocated memory is still 121.6MB. Free memory was 88.7MB in the beginning and 86.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.25ms. Allocated memory is still 121.6MB. Free memory was 86.6MB in the beginning and 85.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 359.08ms. Allocated memory is still 121.6MB. Free memory was 85.0MB in the beginning and 69.6MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1023.42ms. Allocated memory is still 121.6MB. Free memory was 69.1MB in the beginning and 77.5MB in the end (delta: -8.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 41.32ms. Allocated memory is still 121.6MB. Free memory was 77.5MB in the beginning and 73.3MB 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: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L59] int cleanupTimeShifts = 4; [L332] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L606] int pumpRunning = 0; [L607] int systemActive = 1; [L816] int waterLevel = 1; [L817] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L140] int retValue_acc ; [L141] int tmp ; [L145] FCALL select_helpers() [L146] FCALL select_features() [L147] CALL, EXPR valid_product() [L806] int retValue_acc ; [L809] retValue_acc = 1 [L810] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L147] RET, EXPR valid_product() [L147] tmp = valid_product() [L149] COND TRUE \read(tmp) [L151] FCALL setup() [L152] CALL runTest() [L131] CALL test() [L532] int splverifierCounter ; [L533] int tmp ; [L534] int tmp___0 ; [L535] int tmp___1 ; [L536] int tmp___2 ; [L539] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L541] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L543] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L549] tmp = __VERIFIER_nondet_int() [L551] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L553] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L834] COND TRUE waterLevel < 2 [L835] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L553] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L559] tmp___0 = __VERIFIER_nondet_int() [L561] 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] [L569] tmp___2 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___2)) [L577] tmp___1 = __VERIFIER_nondet_int() [L579] COND TRUE \read(tmp___1) [L581] CALL stopSystem() [L760] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L767] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L581] RET stopSystem() [L588] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L614] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L621] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L629] CALL __utac_acc__Specification3_spec__1() [L897] int tmp ; [L898] int tmp___0 ; [L899] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L903] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L855] int retValue_acc ; [L858] retValue_acc = methaneLevelCritical [L859] 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] [L903] 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] [L903] tmp = isMethaneLevelCritical() [L905] COND FALSE !(\read(tmp)) [L909] CALL, EXPR getWaterLevel() [L887] int retValue_acc ; [L890] retValue_acc = waterLevel [L891] 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] [L909] RET, EXPR getWaterLevel() [L909] tmp___0 = getWaterLevel() [L911] COND TRUE tmp___0 == 2 [L913] CALL, EXPR isPumpRunning() [L712] int retValue_acc ; [L715] retValue_acc = pumpRunning [L716] 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] [L913] RET, EXPR isPumpRunning() [L913] tmp___1 = isPumpRunning() [L915] COND FALSE !(\read(tmp___1)) [L919] CALL __automaton_fail() [L54] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, 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, 319 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 315 mSDsluCounter, 1024 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 629 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 131 IncrementalHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 395 mSDtfsCounter, 131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=306occurred 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, 31 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 219 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 13:15:19,026 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