./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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_product40.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 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 17:38:24,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 17:38:24,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 17:38:24,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 17:38:24,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 17:38:24,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 17:38:24,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 17:38:24,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 17:38:24,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 17:38:24,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 17:38:24,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 17:38:24,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 17:38:24,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 17:38:24,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 17:38:24,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 17:38:24,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 17:38:24,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 17:38:24,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 17:38:24,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 17:38:24,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 17:38:24,394 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 17:38:24,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 17:38:24,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 17:38:24,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 17:38:24,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 17:38:24,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 17:38:24,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 17:38:24,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 17:38:24,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 17:38:24,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 17:38:24,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 17:38:24,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 17:38:24,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 17:38:24,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 17:38:24,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 17:38:24,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 17:38:24,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 17:38:24,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 17:38:24,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 17:38:24,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 17:38:24,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 17:38:24,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 17:38:24,415 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 17:38:24,436 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 17:38:24,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 17:38:24,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 17:38:24,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 17:38:24,441 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 17:38:24,441 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 17:38:24,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 17:38:24,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 17:38:24,442 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 17:38:24,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 17:38:24,443 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 17:38:24,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 17:38:24,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 17:38:24,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 17:38:24,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 17:38:24,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 17:38:24,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 17:38:24,444 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 17:38:24,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 17:38:24,444 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 17:38:24,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 17:38:24,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 17:38:24,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 17:38:24,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 17:38:24,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:38:24,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 17:38:24,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 17:38:24,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 17:38:24,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 17:38:24,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 17:38:24,446 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 17:38:24,446 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 17:38:24,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 17:38:24,446 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c [2022-07-22 17:38:24,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 17:38:24,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 17:38:24,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 17:38:24,651 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 17:38:24,651 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 17:38:24,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2022-07-22 17:38:24,733 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f74c85563/44a7531a71fa48c2968d615e974b8512/FLAG039d8d2f4 [2022-07-22 17:38:25,186 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 17:38:25,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2022-07-22 17:38:25,200 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f74c85563/44a7531a71fa48c2968d615e974b8512/FLAG039d8d2f4 [2022-07-22 17:38:25,585 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f74c85563/44a7531a71fa48c2968d615e974b8512 [2022-07-22 17:38:25,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 17:38:25,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 17:38:25,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 17:38:25,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 17:38:25,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 17:38:25,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:38:25" (1/1) ... [2022-07-22 17:38:25,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf90c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:25, skipping insertion in model container [2022-07-22 17:38:25,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:38:25" (1/1) ... [2022-07-22 17:38:25,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 17:38:25,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 17:38:25,805 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_product40.cil.c[3936,3949] [2022-07-22 17:38:25,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:38:25,906 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 17:38:25,923 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_product40.cil.c[3936,3949] [2022-07-22 17:38:25,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:38:25,988 INFO L208 MainTranslator]: Completed translation [2022-07-22 17:38:25,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:25 WrapperNode [2022-07-22 17:38:25,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 17:38:25,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 17:38:25,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 17:38:25,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 17:38:25,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:25" (1/1) ... [2022-07-22 17:38:26,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:25" (1/1) ... [2022-07-22 17:38:26,039 INFO L137 Inliner]: procedures = 55, calls = 157, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 257 [2022-07-22 17:38:26,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 17:38:26,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 17:38:26,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 17:38:26,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 17:38:26,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:25" (1/1) ... [2022-07-22 17:38:26,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:25" (1/1) ... [2022-07-22 17:38:26,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:25" (1/1) ... [2022-07-22 17:38:26,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:25" (1/1) ... [2022-07-22 17:38:26,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:25" (1/1) ... [2022-07-22 17:38:26,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:25" (1/1) ... [2022-07-22 17:38:26,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:25" (1/1) ... [2022-07-22 17:38:26,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 17:38:26,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 17:38:26,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 17:38:26,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 17:38:26,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:25" (1/1) ... [2022-07-22 17:38:26,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:38:26,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:38:26,125 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) [2022-07-22 17:38:26,141 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 [2022-07-22 17:38:26,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 17:38:26,195 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-22 17:38:26,195 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-22 17:38:26,195 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-22 17:38:26,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-22 17:38:26,195 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-22 17:38:26,195 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-22 17:38:26,195 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-22 17:38:26,195 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-22 17:38:26,195 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-07-22 17:38:26,195 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-07-22 17:38:26,195 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-22 17:38:26,196 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-22 17:38:26,196 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-22 17:38:26,196 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-22 17:38:26,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 17:38:26,196 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-22 17:38:26,196 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-22 17:38:26,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 17:38:26,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 17:38:26,289 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 17:38:26,291 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 17:38:26,527 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 17:38:26,532 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 17:38:26,533 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 17:38:26,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:38:26 BoogieIcfgContainer [2022-07-22 17:38:26,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 17:38:26,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 17:38:26,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 17:38:26,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 17:38:26,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 05:38:25" (1/3) ... [2022-07-22 17:38:26,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd63d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:38:26, skipping insertion in model container [2022-07-22 17:38:26,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:25" (2/3) ... [2022-07-22 17:38:26,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd63d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:38:26, skipping insertion in model container [2022-07-22 17:38:26,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:38:26" (3/3) ... [2022-07-22 17:38:26,551 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2022-07-22 17:38:26,561 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 17:38:26,561 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 17:38:26,607 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 17:38:26,612 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@7c7c3da3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7627fd47 [2022-07-22 17:38:26,613 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 17:38:26,617 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 71 states have (on average 1.380281690140845) internal successors, (98), 80 states have internal predecessors, (98), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-07-22 17:38:26,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-22 17:38:26,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:26,638 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] [2022-07-22 17:38:26,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:26,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:26,652 INFO L85 PathProgramCache]: Analyzing trace with hash -122698053, now seen corresponding path program 1 times [2022-07-22 17:38:26,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:26,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194502977] [2022-07-22 17:38:26,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:26,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:26,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 17:38:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:26,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:26,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:26,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194502977] [2022-07-22 17:38:26,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194502977] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:26,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:26,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 17:38:26,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974962411] [2022-07-22 17:38:26,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:26,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 17:38:26,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:26,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 17:38:26,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 17:38:26,887 INFO L87 Difference]: Start difference. First operand has 95 states, 71 states have (on average 1.380281690140845) internal successors, (98), 80 states have internal predecessors, (98), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) 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) [2022-07-22 17:38:26,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:26,917 INFO L93 Difference]: Finished difference Result 182 states and 247 transitions. [2022-07-22 17:38:26,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 17:38:26,918 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 [2022-07-22 17:38:26,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:26,925 INFO L225 Difference]: With dead ends: 182 [2022-07-22 17:38:26,925 INFO L226 Difference]: Without dead ends: 86 [2022-07-22 17:38:26,928 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 [2022-07-22 17:38:26,930 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:38:26,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:38:26,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-07-22 17:38:26,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-07-22 17:38:26,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 72 states have internal predecessors, (84), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-22 17:38:26,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2022-07-22 17:38:26,963 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 25 [2022-07-22 17:38:26,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:26,964 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2022-07-22 17:38:26,964 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) [2022-07-22 17:38:26,964 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2022-07-22 17:38:26,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-22 17:38:26,966 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:26,966 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] [2022-07-22 17:38:26,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 17:38:26,967 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:26,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:26,967 INFO L85 PathProgramCache]: Analyzing trace with hash -204473264, now seen corresponding path program 1 times [2022-07-22 17:38:26,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:26,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484826536] [2022-07-22 17:38:26,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:26,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:27,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 17:38:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:27,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:27,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:27,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484826536] [2022-07-22 17:38:27,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484826536] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:27,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:27,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:38:27,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811079362] [2022-07-22 17:38:27,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:27,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:38:27,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:27,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:38:27,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:38:27,072 INFO L87 Difference]: Start difference. First operand 86 states and 111 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 17:38:27,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:27,098 INFO L93 Difference]: Finished difference Result 133 states and 171 transitions. [2022-07-22 17:38:27,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:38:27,101 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 [2022-07-22 17:38:27,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:27,105 INFO L225 Difference]: With dead ends: 133 [2022-07-22 17:38:27,105 INFO L226 Difference]: Without dead ends: 77 [2022-07-22 17:38:27,107 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 [2022-07-22 17:38:27,108 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 17 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 174 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 [2022-07-22 17:38:27,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 174 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:38:27,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-07-22 17:38:27,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-07-22 17:38:27,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 66 states have internal predecessors, (77), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-22 17:38:27,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2022-07-22 17:38:27,122 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 26 [2022-07-22 17:38:27,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:27,122 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2022-07-22 17:38:27,122 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) [2022-07-22 17:38:27,122 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2022-07-22 17:38:27,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-22 17:38:27,123 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:27,123 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] [2022-07-22 17:38:27,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 17:38:27,124 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:27,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:27,124 INFO L85 PathProgramCache]: Analyzing trace with hash -359670134, now seen corresponding path program 1 times [2022-07-22 17:38:27,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:27,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897143521] [2022-07-22 17:38:27,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:27,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:27,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 17:38:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:27,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:27,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:27,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897143521] [2022-07-22 17:38:27,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897143521] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:27,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:27,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 17:38:27,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189940144] [2022-07-22 17:38:27,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:27,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 17:38:27,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:27,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 17:38:27,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:38:27,217 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 17:38:27,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:27,296 INFO L93 Difference]: Finished difference Result 191 states and 249 transitions. [2022-07-22 17:38:27,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 17:38:27,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-07-22 17:38:27,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:27,298 INFO L225 Difference]: With dead ends: 191 [2022-07-22 17:38:27,298 INFO L226 Difference]: Without dead ends: 121 [2022-07-22 17:38:27,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-22 17:38:27,299 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 162 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:38:27,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 339 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:38:27,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-07-22 17:38:27,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 118. [2022-07-22 17:38:27,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 89 states have (on average 1.348314606741573) internal successors, (120), 100 states have internal predecessors, (120), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (17), 12 states have call predecessors, (17), 16 states have call successors, (17) [2022-07-22 17:38:27,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 153 transitions. [2022-07-22 17:38:27,311 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 153 transitions. Word has length 31 [2022-07-22 17:38:27,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:27,311 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 153 transitions. [2022-07-22 17:38:27,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 17:38:27,312 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 153 transitions. [2022-07-22 17:38:27,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-22 17:38:27,313 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:27,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:38:27,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 17:38:27,313 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:27,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:27,313 INFO L85 PathProgramCache]: Analyzing trace with hash -831178254, now seen corresponding path program 1 times [2022-07-22 17:38:27,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:27,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636771055] [2022-07-22 17:38:27,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:27,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:27,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 17:38:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:27,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:27,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:27,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636771055] [2022-07-22 17:38:27,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636771055] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:27,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:27,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 17:38:27,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107845370] [2022-07-22 17:38:27,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:27,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 17:38:27,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:27,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 17:38:27,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:38:27,389 INFO L87 Difference]: Start difference. First operand 118 states and 153 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 17:38:27,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:27,429 INFO L93 Difference]: Finished difference Result 334 states and 451 transitions. [2022-07-22 17:38:27,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:38:27,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-07-22 17:38:27,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:27,431 INFO L225 Difference]: With dead ends: 334 [2022-07-22 17:38:27,432 INFO L226 Difference]: Without dead ends: 223 [2022-07-22 17:38:27,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:38:27,433 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 68 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:38:27,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 403 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:38:27,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-07-22 17:38:27,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 217. [2022-07-22 17:38:27,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 162 states have (on average 1.3271604938271604) internal successors, (215), 181 states have internal predecessors, (215), 32 states have call successors, (32), 24 states have call predecessors, (32), 22 states have return successors, (37), 22 states have call predecessors, (37), 32 states have call successors, (37) [2022-07-22 17:38:27,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 284 transitions. [2022-07-22 17:38:27,450 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 284 transitions. Word has length 34 [2022-07-22 17:38:27,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:27,451 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 284 transitions. [2022-07-22 17:38:27,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 17:38:27,451 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 284 transitions. [2022-07-22 17:38:27,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-22 17:38:27,453 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:27,453 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] [2022-07-22 17:38:27,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 17:38:27,453 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:27,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:27,453 INFO L85 PathProgramCache]: Analyzing trace with hash -84760713, now seen corresponding path program 1 times [2022-07-22 17:38:27,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:27,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136470579] [2022-07-22 17:38:27,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:27,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:27,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:38:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:27,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:27,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:27,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136470579] [2022-07-22 17:38:27,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136470579] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:27,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:27,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:38:27,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241536549] [2022-07-22 17:38:27,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:27,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:38:27,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:27,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:38:27,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:38:27,484 INFO L87 Difference]: Start difference. First operand 217 states and 284 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2022-07-22 17:38:27,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:27,512 INFO L93 Difference]: Finished difference Result 489 states and 656 transitions. [2022-07-22 17:38:27,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:38:27,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 36 [2022-07-22 17:38:27,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:27,517 INFO L225 Difference]: With dead ends: 489 [2022-07-22 17:38:27,517 INFO L226 Difference]: Without dead ends: 279 [2022-07-22 17:38:27,518 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 [2022-07-22 17:38:27,523 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 59 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:38:27,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 168 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:38:27,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-07-22 17:38:27,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 275. [2022-07-22 17:38:27,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 210 states have (on average 1.2857142857142858) internal successors, (270), 224 states have internal predecessors, (270), 34 states have call successors, (34), 32 states have call predecessors, (34), 30 states have return successors, (47), 31 states have call predecessors, (47), 34 states have call successors, (47) [2022-07-22 17:38:27,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 351 transitions. [2022-07-22 17:38:27,542 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 351 transitions. Word has length 36 [2022-07-22 17:38:27,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:27,543 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 351 transitions. [2022-07-22 17:38:27,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2022-07-22 17:38:27,543 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 351 transitions. [2022-07-22 17:38:27,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-22 17:38:27,544 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:27,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:38:27,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 17:38:27,544 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:27,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:27,545 INFO L85 PathProgramCache]: Analyzing trace with hash -433929128, now seen corresponding path program 1 times [2022-07-22 17:38:27,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:27,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926387634] [2022-07-22 17:38:27,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:27,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 17:38:27,559 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 17:38:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 17:38:27,595 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 17:38:27,596 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 17:38:27,596 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 17:38:27,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 17:38:27,605 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-07-22 17:38:27,608 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 17:38:27,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 05:38:27 BoogieIcfgContainer [2022-07-22 17:38:27,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 17:38:27,658 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 17:38:27,658 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 17:38:27,658 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 17:38:27,659 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:38:26" (3/4) ... [2022-07-22 17:38:27,660 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 17:38:27,704 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 17:38:27,704 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 17:38:27,704 INFO L158 Benchmark]: Toolchain (without parser) took 2116.80ms. Allocated memory is still 157.3MB. Free memory was 122.6MB in the beginning and 84.9MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-07-22 17:38:27,704 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 17:38:27,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.62ms. Allocated memory is still 157.3MB. Free memory was 122.3MB in the beginning and 122.9MB in the end (delta: -612.8kB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2022-07-22 17:38:27,705 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.62ms. Allocated memory is still 157.3MB. Free memory was 122.9MB in the beginning and 120.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 17:38:27,705 INFO L158 Benchmark]: Boogie Preprocessor took 31.05ms. Allocated memory is still 157.3MB. Free memory was 120.2MB in the beginning and 119.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 17:38:27,705 INFO L158 Benchmark]: RCFGBuilder took 453.98ms. Allocated memory is still 157.3MB. Free memory was 118.7MB in the beginning and 101.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-22 17:38:27,705 INFO L158 Benchmark]: TraceAbstraction took 1122.27ms. Allocated memory is still 157.3MB. Free memory was 101.3MB in the beginning and 88.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2022-07-22 17:38:27,706 INFO L158 Benchmark]: Witness Printer took 45.43ms. Allocated memory is still 157.3MB. Free memory was 88.2MB in the beginning and 84.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 17:38:27,707 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 83.9MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.62ms. Allocated memory is still 157.3MB. Free memory was 122.3MB in the beginning and 122.9MB in the end (delta: -612.8kB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.62ms. Allocated memory is still 157.3MB. Free memory was 122.9MB in the beginning and 120.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.05ms. Allocated memory is still 157.3MB. Free memory was 120.2MB in the beginning and 119.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 453.98ms. Allocated memory is still 157.3MB. Free memory was 118.7MB in the beginning and 101.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1122.27ms. Allocated memory is still 157.3MB. Free memory was 101.3MB in the beginning and 88.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Witness Printer took 45.43ms. Allocated memory is still 157.3MB. Free memory was 88.2MB in the beginning and 84.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 231]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L239] int waterLevel = 1; [L240] int methaneLevelCritical = 0; [L337] int pumpRunning = 0; [L338] int systemActive = 1; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L539] int splverifierCounter ; [L540] int tmp ; [L541] int tmp___0 ; [L542] int tmp___1 ; [L543] int tmp___2 ; [L546] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L548] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L550] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L556] tmp = __VERIFIER_nondet_int() [L558] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L560] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L257] COND TRUE waterLevel < 2 [L258] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L560] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L566] tmp___0 = __VERIFIER_nondet_int() [L568] 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] [L576] tmp___2 = __VERIFIER_nondet_int() [L578] COND FALSE !(\read(tmp___2)) [L584] tmp___1 = __VERIFIER_nondet_int() [L586] COND TRUE \read(tmp___1) [L588] CALL stopSystem() [L518] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L525] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L588] RET stopSystem() [L595] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L344] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L351] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L359] CALL __utac_acc__Specification3_spec__1() [L194] int tmp ; [L195] int tmp___0 ; [L196] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L200] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L278] int retValue_acc ; [L281] retValue_acc = methaneLevelCritical [L282] 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] [L200] 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] [L200] tmp = isMethaneLevelCritical() [L202] COND FALSE !(\read(tmp)) [L206] CALL, EXPR getWaterLevel() [L310] int retValue_acc ; [L313] retValue_acc = waterLevel [L314] 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] [L206] RET, EXPR getWaterLevel() [L206] tmp___0 = getWaterLevel() [L208] COND TRUE tmp___0 == 2 [L210] CALL, EXPR isPumpRunning() [L451] int retValue_acc ; [L454] retValue_acc = pumpRunning [L455] 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] [L210] RET, EXPR isPumpRunning() [L210] tmp___1 = isPumpRunning() [L212] COND FALSE !(\read(tmp___1)) [L216] CALL __automaton_fail() [L231] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 310 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 306 mSDsluCounter, 1204 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 664 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 540 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=275occurred in iteration=5, InterpolantAutomatonStates: 19, 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, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 261 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 RESULT: Ultimate proved your program to be incorrect! [2022-07-22 17:38:27,738 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