./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product27.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 d2b18f8936761d8846ee25b456ed772fff798460a5a47e80881faf00ea0dfef9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:00:09,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:00:09,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:00:09,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:00:09,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:00:09,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:00:09,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:00:09,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:00:09,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:00:09,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:00:10,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:00:10,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:00:10,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:00:10,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:00:10,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:00:10,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:00:10,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:00:10,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:00:10,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:00:10,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:00:10,019 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:00:10,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:00:10,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:00:10,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:00:10,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:00:10,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:00:10,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:00:10,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:00:10,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:00:10,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:00:10,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:00:10,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:00:10,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:00:10,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:00:10,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:00:10,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:00:10,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:00:10,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:00:10,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:00:10,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:00:10,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:00:10,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:00:10,055 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:00:10,078 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:00:10,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:00:10,079 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:00:10,079 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:00:10,080 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:00:10,080 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:00:10,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:00:10,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:00:10,081 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:00:10,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:00:10,082 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:00:10,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:00:10,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:00:10,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:00:10,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:00:10,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:00:10,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:00:10,083 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:00:10,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:00:10,083 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:00:10,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:00:10,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:00:10,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:00:10,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:00:10,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:00:10,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:00:10,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:00:10,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:00:10,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:00:10,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:00:10,085 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:00:10,085 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:00:10,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:00:10,085 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2b18f8936761d8846ee25b456ed772fff798460a5a47e80881faf00ea0dfef9 [2022-07-21 05:00:10,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:00:10,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:00:10,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:00:10,390 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:00:10,390 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:00:10,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product27.cil.c [2022-07-21 05:00:10,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96b9a95f3/b37c0849295d4389b23ea555d6bad307/FLAG6c6a0dcb6 [2022-07-21 05:00:10,885 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:00:10,885 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product27.cil.c [2022-07-21 05:00:10,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96b9a95f3/b37c0849295d4389b23ea555d6bad307/FLAG6c6a0dcb6 [2022-07-21 05:00:10,920 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96b9a95f3/b37c0849295d4389b23ea555d6bad307 [2022-07-21 05:00:10,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:00:10,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:00:10,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:00:10,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:00:10,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:00:10,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:00:10" (1/1) ... [2022-07-21 05:00:10,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2088b2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:10, skipping insertion in model container [2022-07-21 05:00:10,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:00:10" (1/1) ... [2022-07-21 05:00:10,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:00:10,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:00:11,240 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_spec2_product27.cil.c[18283,18296] [2022-07-21 05:00:11,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:00:11,250 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:00:11,321 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_spec2_product27.cil.c[18283,18296] [2022-07-21 05:00:11,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:00:11,334 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:00:11,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:11 WrapperNode [2022-07-21 05:00:11,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:00:11,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:00:11,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:00:11,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:00:11,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:11" (1/1) ... [2022-07-21 05:00:11,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:11" (1/1) ... [2022-07-21 05:00:11,370 INFO L137 Inliner]: procedures = 55, calls = 154, calls flagged for inlining = 22, calls inlined = 17, statements flattened = 224 [2022-07-21 05:00:11,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:00:11,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:00:11,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:00:11,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:00:11,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:11" (1/1) ... [2022-07-21 05:00:11,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:11" (1/1) ... [2022-07-21 05:00:11,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:11" (1/1) ... [2022-07-21 05:00:11,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:11" (1/1) ... [2022-07-21 05:00:11,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:11" (1/1) ... [2022-07-21 05:00:11,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:11" (1/1) ... [2022-07-21 05:00:11,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:11" (1/1) ... [2022-07-21 05:00:11,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:00:11,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:00:11,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:00:11,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:00:11,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:11" (1/1) ... [2022-07-21 05:00:11,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:00:11,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:00:11,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 05:00:11,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 05:00:11,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:00:11,473 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-21 05:00:11,473 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-21 05:00:11,473 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-21 05:00:11,473 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-21 05:00:11,474 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-21 05:00:11,474 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-21 05:00:11,477 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-21 05:00:11,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-21 05:00:11,477 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-21 05:00:11,477 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-21 05:00:11,478 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-21 05:00:11,478 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-21 05:00:11,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:00:11,478 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-21 05:00:11,478 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-21 05:00:11,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:00:11,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:00:11,540 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:00:11,555 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:00:11,781 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:00:11,790 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:00:11,793 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 05:00:11,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:00:11 BoogieIcfgContainer [2022-07-21 05:00:11,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:00:11,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:00:11,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:00:11,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:00:11,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:00:10" (1/3) ... [2022-07-21 05:00:11,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a68e901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:00:11, skipping insertion in model container [2022-07-21 05:00:11,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:11" (2/3) ... [2022-07-21 05:00:11,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a68e901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:00:11, skipping insertion in model container [2022-07-21 05:00:11,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:00:11" (3/3) ... [2022-07-21 05:00:11,801 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product27.cil.c [2022-07-21 05:00:11,810 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:00:11,811 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 05:00:11,854 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:00:11,860 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7c615f48, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6293dbc [2022-07-21 05:00:11,861 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 05:00:11,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 69 states have internal predecessors, (86), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-21 05:00:11,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-21 05:00:11,871 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:11,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:00:11,872 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:11,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:11,877 INFO L85 PathProgramCache]: Analyzing trace with hash 116265818, now seen corresponding path program 1 times [2022-07-21 05:00:11,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:11,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338712353] [2022-07-21 05:00:11,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:11,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:12,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 05:00:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:12,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:00:12,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:12,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338712353] [2022-07-21 05:00:12,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338712353] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:12,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:12,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 05:00:12,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907318768] [2022-07-21 05:00:12,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:12,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 05:00:12,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:12,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 05:00:12,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 05:00:12,088 INFO L87 Difference]: Start difference. First operand has 82 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 69 states have internal predecessors, (86), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:00:12,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:12,113 INFO L93 Difference]: Finished difference Result 155 states and 210 transitions. [2022-07-21 05:00:12,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 05:00:12,115 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-07-21 05:00:12,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:12,120 INFO L225 Difference]: With dead ends: 155 [2022-07-21 05:00:12,120 INFO L226 Difference]: Without dead ends: 73 [2022-07-21 05:00:12,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 05:00:12,125 INFO L413 NwaCegarLoop]: 102 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, 102 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:00:12,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:00:12,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-07-21 05:00:12,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-07-21 05:00:12,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 55 states have (on average 1.309090909090909) internal successors, (72), 61 states have internal predecessors, (72), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-21 05:00:12,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 93 transitions. [2022-07-21 05:00:12,166 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 93 transitions. Word has length 25 [2022-07-21 05:00:12,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:12,167 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 93 transitions. [2022-07-21 05:00:12,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:00:12,168 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 93 transitions. [2022-07-21 05:00:12,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-21 05:00:12,172 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:12,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:00:12,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 05:00:12,173 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:12,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:12,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1218551415, now seen corresponding path program 1 times [2022-07-21 05:00:12,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:12,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795211286] [2022-07-21 05:00:12,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:12,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:12,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 05:00:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:12,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:00:12,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:12,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795211286] [2022-07-21 05:00:12,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795211286] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:12,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:12,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:00:12,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536543646] [2022-07-21 05:00:12,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:12,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:00:12,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:12,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:00:12,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:00:12,268 INFO L87 Difference]: Start difference. First operand 73 states and 93 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:00:12,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:12,286 INFO L93 Difference]: Finished difference Result 107 states and 135 transitions. [2022-07-21 05:00:12,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:00:12,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-07-21 05:00:12,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:12,287 INFO L225 Difference]: With dead ends: 107 [2022-07-21 05:00:12,287 INFO L226 Difference]: Without dead ends: 64 [2022-07-21 05:00:12,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:00:12,289 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 16 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:00:12,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 139 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:00:12,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-07-21 05:00:12,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-07-21 05:00:12,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 55 states have internal predecessors, (65), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-21 05:00:12,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 81 transitions. [2022-07-21 05:00:12,295 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 81 transitions. Word has length 26 [2022-07-21 05:00:12,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:12,295 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 81 transitions. [2022-07-21 05:00:12,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:00:12,295 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2022-07-21 05:00:12,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-21 05:00:12,296 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:12,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:00:12,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 05:00:12,296 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:12,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:12,297 INFO L85 PathProgramCache]: Analyzing trace with hash 603258873, now seen corresponding path program 1 times [2022-07-21 05:00:12,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:12,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049859018] [2022-07-21 05:00:12,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:12,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:12,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 05:00:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:12,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:00:12,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:12,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049859018] [2022-07-21 05:00:12,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049859018] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:12,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:12,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:00:12,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917188205] [2022-07-21 05:00:12,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:12,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:00:12,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:12,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:00:12,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:00:12,361 INFO L87 Difference]: Start difference. First operand 64 states and 81 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:00:12,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:12,377 INFO L93 Difference]: Finished difference Result 175 states and 227 transitions. [2022-07-21 05:00:12,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:00:12,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-07-21 05:00:12,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:12,379 INFO L225 Difference]: With dead ends: 175 [2022-07-21 05:00:12,379 INFO L226 Difference]: Without dead ends: 119 [2022-07-21 05:00:12,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:00:12,380 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 60 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:00:12,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 173 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:00:12,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-07-21 05:00:12,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 116. [2022-07-21 05:00:12,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 98 states have internal predecessors, (118), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-21 05:00:12,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 150 transitions. [2022-07-21 05:00:12,402 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 150 transitions. Word has length 30 [2022-07-21 05:00:12,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:12,403 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 150 transitions. [2022-07-21 05:00:12,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:00:12,403 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 150 transitions. [2022-07-21 05:00:12,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-21 05:00:12,404 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:12,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:00:12,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 05:00:12,405 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:12,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:12,405 INFO L85 PathProgramCache]: Analyzing trace with hash -820315312, now seen corresponding path program 1 times [2022-07-21 05:00:12,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:12,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865503406] [2022-07-21 05:00:12,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:12,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:12,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 05:00:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:12,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 05:00:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:12,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:00:12,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:12,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865503406] [2022-07-21 05:00:12,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865503406] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:12,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:12,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:00:12,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636418027] [2022-07-21 05:00:12,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:12,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:00:12,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:12,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:00:12,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:00:12,469 INFO L87 Difference]: Start difference. First operand 116 states and 150 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 05:00:12,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:12,565 INFO L93 Difference]: Finished difference Result 330 states and 435 transitions. [2022-07-21 05:00:12,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 05:00:12,565 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-07-21 05:00:12,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:12,567 INFO L225 Difference]: With dead ends: 330 [2022-07-21 05:00:12,568 INFO L226 Difference]: Without dead ends: 222 [2022-07-21 05:00:12,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:00:12,569 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 51 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:00:12,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 389 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:00:12,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-07-21 05:00:12,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 216. [2022-07-21 05:00:12,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 159 states have (on average 1.3396226415094339) internal successors, (213), 180 states have internal predecessors, (213), 32 states have call successors, (32), 24 states have call predecessors, (32), 24 states have return successors, (34), 22 states have call predecessors, (34), 32 states have call successors, (34) [2022-07-21 05:00:12,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 279 transitions. [2022-07-21 05:00:12,597 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 279 transitions. Word has length 35 [2022-07-21 05:00:12,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:12,597 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 279 transitions. [2022-07-21 05:00:12,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 05:00:12,598 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 279 transitions. [2022-07-21 05:00:12,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-21 05:00:12,603 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:12,603 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:00:12,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 05:00:12,604 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:12,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:12,604 INFO L85 PathProgramCache]: Analyzing trace with hash -64139020, now seen corresponding path program 1 times [2022-07-21 05:00:12,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:12,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385130355] [2022-07-21 05:00:12,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:12,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:12,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 05:00:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:12,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 05:00:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:12,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 05:00:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:12,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:00:12,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:12,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385130355] [2022-07-21 05:00:12,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385130355] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:12,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:12,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:00:12,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157821464] [2022-07-21 05:00:12,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:12,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:00:12,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:12,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:00:12,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:00:12,727 INFO L87 Difference]: Start difference. First operand 216 states and 279 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 05:00:12,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:12,835 INFO L93 Difference]: Finished difference Result 374 states and 483 transitions. [2022-07-21 05:00:12,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 05:00:12,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-07-21 05:00:12,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:12,836 INFO L225 Difference]: With dead ends: 374 [2022-07-21 05:00:12,836 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 05:00:12,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:00:12,840 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 50 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:00:12,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 128 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:00:12,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 05:00:12,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 05:00:12,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:00:12,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 05:00:12,841 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2022-07-21 05:00:12,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:12,841 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 05:00:12,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 05:00:12,842 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 05:00:12,842 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 05:00:12,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 05:00:12,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 05:00:12,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-21 05:00:13,193 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 847 854) the Hoare annotation is: true [2022-07-21 05:00:13,193 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 847 854) no Hoare annotation was computed. [2022-07-21 05:00:13,194 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 847 854) no Hoare annotation was computed. [2022-07-21 05:00:13,194 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 788 794) no Hoare annotation was computed. [2022-07-21 05:00:13,194 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 788 794) the Hoare annotation is: true [2022-07-21 05:00:13,194 INFO L899 garLoopResultBuilder]: For program point L494-1(lines 490 501) no Hoare annotation was computed. [2022-07-21 05:00:13,194 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 490 501) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) [2022-07-21 05:00:13,195 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 490 501) no Hoare annotation was computed. [2022-07-21 05:00:13,195 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 450) no Hoare annotation was computed. [2022-07-21 05:00:13,195 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 453) no Hoare annotation was computed. [2022-07-21 05:00:13,195 INFO L895 garLoopResultBuilder]: At program point L436-1(lines 428 456) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~3#1| 0) (not (= ~methaneLevelCritical~0 0))) (or .cse0 (= ~pumpRunning~0 0)))) [2022-07-21 05:00:13,195 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 764 787) no Hoare annotation was computed. [2022-07-21 05:00:13,195 INFO L899 garLoopResultBuilder]: For program point L775-1(lines 775 781) no Hoare annotation was computed. [2022-07-21 05:00:13,195 INFO L895 garLoopResultBuilder]: At program point L548(lines 543 551) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-21 05:00:13,196 INFO L899 garLoopResultBuilder]: For program point L804(lines 804 812) no Hoare annotation was computed. [2022-07-21 05:00:13,196 INFO L899 garLoopResultBuilder]: For program point L800(lines 800 817) no Hoare annotation was computed. [2022-07-21 05:00:13,196 INFO L899 garLoopResultBuilder]: For program point L441(lines 441 447) no Hoare annotation was computed. [2022-07-21 05:00:13,196 INFO L899 garLoopResultBuilder]: For program point L920(lines 920 924) no Hoare annotation was computed. [2022-07-21 05:00:13,196 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 474) no Hoare annotation was computed. [2022-07-21 05:00:13,196 INFO L899 garLoopResultBuilder]: For program point L920-2(lines 920 924) no Hoare annotation was computed. [2022-07-21 05:00:13,196 INFO L895 garLoopResultBuilder]: At program point L470-2(lines 466 477) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-21 05:00:13,197 INFO L895 garLoopResultBuilder]: At program point L871(lines 866 874) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0))))) [2022-07-21 05:00:13,197 INFO L899 garLoopResultBuilder]: For program point L768-1(lines 767 786) no Hoare annotation was computed. [2022-07-21 05:00:13,197 INFO L899 garLoopResultBuilder]: For program point L950(line 950) no Hoare annotation was computed. [2022-07-21 05:00:13,197 INFO L895 garLoopResultBuilder]: At program point L434(line 434) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-21 05:00:13,197 INFO L899 garLoopResultBuilder]: For program point L434-1(line 434) no Hoare annotation was computed. [2022-07-21 05:00:13,197 INFO L895 garLoopResultBuilder]: At program point L810(line 810) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-21 05:00:13,198 INFO L895 garLoopResultBuilder]: At program point L806(line 806) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-21 05:00:13,198 INFO L895 garLoopResultBuilder]: At program point L926(lines 911 929) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-21 05:00:13,198 INFO L895 garLoopResultBuilder]: At program point L951(lines 946 953) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-21 05:00:13,198 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 764 787) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-21 05:00:13,198 INFO L895 garLoopResultBuilder]: At program point L815(line 815) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-21 05:00:13,202 INFO L895 garLoopResultBuilder]: At program point L815-1(lines 796 820) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-21 05:00:13,202 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 764 787) no Hoare annotation was computed. [2022-07-21 05:00:13,202 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 950) no Hoare annotation was computed. [2022-07-21 05:00:13,203 INFO L899 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2022-07-21 05:00:13,203 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 555 584) no Hoare annotation was computed. [2022-07-21 05:00:13,203 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 555 584) the Hoare annotation is: true [2022-07-21 05:00:13,204 INFO L899 garLoopResultBuilder]: For program point L569(lines 569 573) no Hoare annotation was computed. [2022-07-21 05:00:13,204 INFO L902 garLoopResultBuilder]: At program point L569-1(lines 569 573) the Hoare annotation is: true [2022-07-21 05:00:13,204 INFO L899 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2022-07-21 05:00:13,207 INFO L902 garLoopResultBuilder]: At program point L565-2(lines 565 579) the Hoare annotation is: true [2022-07-21 05:00:13,207 INFO L902 garLoopResultBuilder]: At program point L561(line 561) the Hoare annotation is: true [2022-07-21 05:00:13,208 INFO L899 garLoopResultBuilder]: For program point L561-1(line 561) no Hoare annotation was computed. [2022-07-21 05:00:13,209 INFO L902 garLoopResultBuilder]: At program point L580(lines 555 584) the Hoare annotation is: true [2022-07-21 05:00:13,211 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 502 510) the Hoare annotation is: true [2022-07-21 05:00:13,211 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 502 510) no Hoare annotation was computed. [2022-07-21 05:00:13,211 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 502 510) no Hoare annotation was computed. [2022-07-21 05:00:13,212 INFO L899 garLoopResultBuilder]: For program point L642-2(lines 642 649) no Hoare annotation was computed. [2022-07-21 05:00:13,212 INFO L895 garLoopResultBuilder]: At program point L754(lines 749 757) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-21 05:00:13,212 INFO L902 garLoopResultBuilder]: At program point L626(lines 618 628) the Hoare annotation is: true [2022-07-21 05:00:13,212 INFO L902 garLoopResultBuilder]: At program point L651(lines 632 654) the Hoare annotation is: true [2022-07-21 05:00:13,213 INFO L895 garLoopResultBuilder]: At program point L746(lines 742 748) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-21 05:00:13,213 INFO L895 garLoopResultBuilder]: At program point L936(line 936) the Hoare annotation is: false [2022-07-21 05:00:13,213 INFO L895 garLoopResultBuilder]: At program point L614(lines 610 616) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-21 05:00:13,213 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-21 05:00:13,213 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-21 05:00:13,213 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-21 05:00:13,214 INFO L899 garLoopResultBuilder]: For program point L668(lines 667 714) no Hoare annotation was computed. [2022-07-21 05:00:13,214 INFO L899 garLoopResultBuilder]: For program point L697(lines 697 710) no Hoare annotation was computed. [2022-07-21 05:00:13,214 INFO L895 garLoopResultBuilder]: At program point L689(line 689) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-21 05:00:13,216 INFO L902 garLoopResultBuilder]: At program point L718(lines 657 722) the Hoare annotation is: true [2022-07-21 05:00:13,219 INFO L895 garLoopResultBuilder]: At program point L425(lines 420 427) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-21 05:00:13,219 INFO L899 garLoopResultBuilder]: For program point L677(lines 677 683) no Hoare annotation was computed. [2022-07-21 05:00:13,219 INFO L899 garLoopResultBuilder]: For program point L677-1(lines 677 683) no Hoare annotation was computed. [2022-07-21 05:00:13,219 INFO L895 garLoopResultBuilder]: At program point L739(lines 735 741) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-21 05:00:13,219 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-21 05:00:13,219 INFO L899 garLoopResultBuilder]: For program point L669(lines 669 673) no Hoare annotation was computed. [2022-07-21 05:00:13,220 INFO L895 garLoopResultBuilder]: At program point L942(lines 930 944) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-21 05:00:13,220 INFO L895 garLoopResultBuilder]: At program point L715(lines 666 716) the Hoare annotation is: false [2022-07-21 05:00:13,220 INFO L899 garLoopResultBuilder]: For program point L934(lines 934 940) no Hoare annotation was computed. [2022-07-21 05:00:13,220 INFO L899 garLoopResultBuilder]: For program point L934-1(lines 934 940) no Hoare annotation was computed. [2022-07-21 05:00:13,220 INFO L899 garLoopResultBuilder]: For program point L703(lines 703 709) no Hoare annotation was computed. [2022-07-21 05:00:13,221 INFO L895 garLoopResultBuilder]: At program point L703-2(lines 697 710) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-21 05:00:13,221 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 693) no Hoare annotation was computed. [2022-07-21 05:00:13,221 INFO L899 garLoopResultBuilder]: For program point L687-1(lines 687 693) no Hoare annotation was computed. [2022-07-21 05:00:13,221 INFO L895 garLoopResultBuilder]: At program point L712(lines 667 714) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-21 05:00:13,221 INFO L895 garLoopResultBuilder]: At program point L679(line 679) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-21 05:00:13,222 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 649) no Hoare annotation was computed. [2022-07-21 05:00:13,222 INFO L899 garLoopResultBuilder]: For program point L482-1(lines 478 489) no Hoare annotation was computed. [2022-07-21 05:00:13,222 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 478 489) no Hoare annotation was computed. [2022-07-21 05:00:13,222 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 478 489) the Hoare annotation is: true [2022-07-21 05:00:13,226 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-21 05:00:13,229 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 05:00:13,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:00:13 BoogieIcfgContainer [2022-07-21 05:00:13,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 05:00:13,253 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 05:00:13,253 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 05:00:13,254 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 05:00:13,254 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:00:11" (3/4) ... [2022-07-21 05:00:13,257 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-21 05:00:13,261 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-21 05:00:13,261 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-21 05:00:13,264 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-21 05:00:13,264 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-21 05:00:13,264 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-21 05:00:13,264 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-07-21 05:00:13,265 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-21 05:00:13,270 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-07-21 05:00:13,272 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-21 05:00:13,272 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-21 05:00:13,272 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-21 05:00:13,276 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-21 05:00:13,276 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 05:00:13,277 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 05:00:13,296 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-21 05:00:13,297 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || pumpRunning == 0 [2022-07-21 05:00:13,298 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || pumpRunning == 0) [2022-07-21 05:00:13,299 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 0)) [2022-07-21 05:00:13,299 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-21 05:00:13,299 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-21 05:00:13,299 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-21 05:00:13,320 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 05:00:13,320 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 05:00:13,320 INFO L158 Benchmark]: Toolchain (without parser) took 2396.21ms. Allocated memory was 56.6MB in the beginning and 90.2MB in the end (delta: 33.6MB). Free memory was 34.5MB in the beginning and 61.9MB in the end (delta: -27.5MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2022-07-21 05:00:13,320 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 56.6MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 05:00:13,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.39ms. Allocated memory is still 56.6MB. Free memory was 34.3MB in the beginning and 31.5MB in the end (delta: 2.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-21 05:00:13,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.38ms. Allocated memory is still 56.6MB. Free memory was 31.5MB in the beginning and 29.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 05:00:13,321 INFO L158 Benchmark]: Boogie Preprocessor took 36.12ms. Allocated memory is still 56.6MB. Free memory was 29.2MB in the beginning and 27.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 05:00:13,321 INFO L158 Benchmark]: RCFGBuilder took 381.05ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 27.6MB in the beginning and 41.3MB in the end (delta: -13.7MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2022-07-21 05:00:13,321 INFO L158 Benchmark]: TraceAbstraction took 1456.52ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 41.0MB in the beginning and 67.1MB in the end (delta: -26.1MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2022-07-21 05:00:13,322 INFO L158 Benchmark]: Witness Printer took 66.41ms. Allocated memory is still 90.2MB. Free memory was 67.1MB in the beginning and 61.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-21 05:00:13,323 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 56.6MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.39ms. Allocated memory is still 56.6MB. Free memory was 34.3MB in the beginning and 31.5MB in the end (delta: 2.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.38ms. Allocated memory is still 56.6MB. Free memory was 31.5MB in the beginning and 29.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.12ms. Allocated memory is still 56.6MB. Free memory was 29.2MB in the beginning and 27.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 381.05ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 27.6MB in the beginning and 41.3MB in the end (delta: -13.7MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1456.52ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 41.0MB in the beginning and 67.1MB in the end (delta: -26.1MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Witness Printer took 66.41ms. Allocated memory is still 90.2MB. Free memory was 67.1MB in the beginning and 61.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 950]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 184 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 177 mSDsluCounter, 931 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 512 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 419 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 293 PreInvPairs, 335 NumberOfFragments, 206 HoareAnnotationTreeSize, 293 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 37 FomulaSimplificationsInter, 901 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 302 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 735]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 930]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 428]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || pumpRunning == 0) - InvariantResult [Line: 742]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 749]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 565]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 657]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 543]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 866]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 0)) - InvariantResult [Line: 666]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 796]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || pumpRunning == 0 - InvariantResult [Line: 667]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 946]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 632]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 911]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 466]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) RESULT: Ultimate proved your program to be correct! [2022-07-21 05:00:13,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE