./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_spec5_product59.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 --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 bed571a327ae9eee0b2e62daa6070780d20555ec322abcda9e725c1fa87edc9c --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:17:13,603 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:17:13,655 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:17:13,668 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:17:13,670 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:17:13,691 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:17:13,691 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:17:13,692 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:17:13,692 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:17:13,693 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:17:13,693 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:17:13,693 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:17:13,694 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:17:13,694 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:17:13,695 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:17:13,695 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:17:13,696 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:17:13,696 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:17:13,696 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:17:13,696 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:17:13,696 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:17:13,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:17:13,698 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:17:13,698 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:17:13,699 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:17:13,699 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:17:13,699 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:17:13,699 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:17:13,699 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:17:13,700 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:17:13,700 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:17:13,700 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:17:13,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:17:13,701 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:17:13,701 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:17:13,701 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:17:13,702 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:17:13,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:17:13,702 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:17:13,702 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:17:13,702 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:17:13,702 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:17:13,702 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bed571a327ae9eee0b2e62daa6070780d20555ec322abcda9e725c1fa87edc9c [2024-11-08 15:17:13,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:17:13,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:17:13,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:17:13,939 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:17:13,939 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:17:13,940 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c [2024-11-08 15:17:15,175 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:17:15,373 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:17:15,374 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c [2024-11-08 15:17:15,388 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba785107f/4577233d81964c38b4fcff9bf102dc88/FLAG749a0d04a [2024-11-08 15:17:15,738 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba785107f/4577233d81964c38b4fcff9bf102dc88 [2024-11-08 15:17:15,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:17:15,741 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:17:15,743 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:17:15,743 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:17:15,746 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:17:15,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:17:15" (1/1) ... [2024-11-08 15:17:15,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@797c22a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:15, skipping insertion in model container [2024-11-08 15:17:15,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:17:15" (1/1) ... [2024-11-08 15:17:15,782 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:17:15,995 WARN L250 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_spec5_product59.cil.c[17002,17015] [2024-11-08 15:17:16,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:17:16,023 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:17:16,030 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-08 15:17:16,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [160] [2024-11-08 15:17:16,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [230] [2024-11-08 15:17:16,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [469] [2024-11-08 15:17:16,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [835] [2024-11-08 15:17:16,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [844] [2024-11-08 15:17:16,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [893] [2024-11-08 15:17:16,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [993] [2024-11-08 15:17:16,069 WARN L250 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_spec5_product59.cil.c[17002,17015] [2024-11-08 15:17:16,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:17:16,088 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:17:16,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:16 WrapperNode [2024-11-08 15:17:16,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:17:16,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:17:16,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:17:16,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:17:16,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:16" (1/1) ... [2024-11-08 15:17:16,102 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:16" (1/1) ... [2024-11-08 15:17:16,122 INFO L138 Inliner]: procedures = 59, calls = 105, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 235 [2024-11-08 15:17:16,122 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:17:16,122 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:17:16,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:17:16,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:17:16,130 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:16" (1/1) ... [2024-11-08 15:17:16,130 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:16" (1/1) ... [2024-11-08 15:17:16,132 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:16" (1/1) ... [2024-11-08 15:17:16,149 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 15:17:16,149 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:16" (1/1) ... [2024-11-08 15:17:16,149 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:16" (1/1) ... [2024-11-08 15:17:16,155 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:16" (1/1) ... [2024-11-08 15:17:16,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:16" (1/1) ... [2024-11-08 15:17:16,163 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:16" (1/1) ... [2024-11-08 15:17:16,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:16" (1/1) ... [2024-11-08 15:17:16,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:17:16,170 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:17:16,170 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:17:16,170 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:17:16,170 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:16" (1/1) ... [2024-11-08 15:17:16,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:17:16,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:17:16,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 15:17:16,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 15:17:16,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:17:16,255 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-08 15:17:16,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-08 15:17:16,255 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 15:17:16,255 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 15:17:16,255 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 15:17:16,255 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 15:17:16,255 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:17:16,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:17:16,255 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-08 15:17:16,256 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-08 15:17:16,256 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-08 15:17:16,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-08 15:17:16,256 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-08 15:17:16,256 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-08 15:17:16,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:17:16,256 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-08 15:17:16,257 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-08 15:17:16,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:17:16,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:17:16,347 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:17:16,349 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:17:16,618 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-08 15:17:16,618 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:17:16,634 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:17:16,637 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 15:17:16,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:17:16 BoogieIcfgContainer [2024-11-08 15:17:16,637 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:17:16,639 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:17:16,639 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:17:16,642 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:17:16,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:17:15" (1/3) ... [2024-11-08 15:17:16,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711fce03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:17:16, skipping insertion in model container [2024-11-08 15:17:16,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:16" (2/3) ... [2024-11-08 15:17:16,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711fce03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:17:16, skipping insertion in model container [2024-11-08 15:17:16,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:17:16" (3/3) ... [2024-11-08 15:17:16,644 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product59.cil.c [2024-11-08 15:17:16,656 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:17:16,656 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:17:16,697 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:17:16,703 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5fdf383d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:17:16,703 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:17:16,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 79 states have (on average 1.3670886075949367) internal successors, (108), 88 states have internal predecessors, (108), 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) [2024-11-08 15:17:16,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-08 15:17:16,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:16,713 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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] [2024-11-08 15:17:16,714 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:16,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:16,718 INFO L85 PathProgramCache]: Analyzing trace with hash -483847655, now seen corresponding path program 1 times [2024-11-08 15:17:16,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:16,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696839355] [2024-11-08 15:17:16,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:16,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:16,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 15:17:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:16,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:17:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:16,902 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:17:16,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:16,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696839355] [2024-11-08 15:17:16,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696839355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:17:16,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:17:16,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 15:17:16,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122078504] [2024-11-08 15:17:16,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:17:16,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 15:17:16,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:16,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 15:17:16,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:17:16,933 INFO L87 Difference]: Start difference. First operand has 103 states, 79 states have (on average 1.3670886075949367) internal successors, (108), 88 states have internal predecessors, (108), 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 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:17:16,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:16,965 INFO L93 Difference]: Finished difference Result 197 states and 266 transitions. [2024-11-08 15:17:16,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 15:17:16,967 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-08 15:17:16,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:16,974 INFO L225 Difference]: With dead ends: 197 [2024-11-08 15:17:16,974 INFO L226 Difference]: Without dead ends: 94 [2024-11-08 15:17:16,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:17:16,982 INFO L432 NwaCegarLoop]: 130 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, 130 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 [2024-11-08 15:17:16,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:17:16,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-08 15:17:17,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-08 15:17:17,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.3055555555555556) internal successors, (94), 80 states have internal predecessors, (94), 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) [2024-11-08 15:17:17,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 121 transitions. [2024-11-08 15:17:17,025 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 121 transitions. Word has length 32 [2024-11-08 15:17:17,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:17,026 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 121 transitions. [2024-11-08 15:17:17,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:17:17,027 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 121 transitions. [2024-11-08 15:17:17,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-08 15:17:17,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:17,030 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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] [2024-11-08 15:17:17,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 15:17:17,030 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:17,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:17,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1007317633, now seen corresponding path program 1 times [2024-11-08 15:17:17,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:17,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590670368] [2024-11-08 15:17:17,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:17,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:17,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 15:17:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:17,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:17:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:17,149 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:17:17,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:17,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590670368] [2024-11-08 15:17:17,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590670368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:17:17,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:17:17,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:17:17,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096881635] [2024-11-08 15:17:17,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:17:17,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:17:17,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:17,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:17:17,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:17:17,160 INFO L87 Difference]: Start difference. First operand 94 states and 121 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:17:17,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:17,173 INFO L93 Difference]: Finished difference Result 149 states and 191 transitions. [2024-11-08 15:17:17,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:17:17,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2024-11-08 15:17:17,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:17,174 INFO L225 Difference]: With dead ends: 149 [2024-11-08 15:17:17,174 INFO L226 Difference]: Without dead ends: 85 [2024-11-08 15:17:17,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:17:17,176 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 16 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 195 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 [2024-11-08 15:17:17,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 195 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:17:17,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-08 15:17:17,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-08 15:17:17,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 74 states have internal predecessors, (87), 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) [2024-11-08 15:17:17,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 109 transitions. [2024-11-08 15:17:17,184 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 109 transitions. Word has length 33 [2024-11-08 15:17:17,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:17,185 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 109 transitions. [2024-11-08 15:17:17,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:17:17,185 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 109 transitions. [2024-11-08 15:17:17,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-08 15:17:17,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:17,186 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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] [2024-11-08 15:17:17,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 15:17:17,187 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:17,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:17,187 INFO L85 PathProgramCache]: Analyzing trace with hash 697495445, now seen corresponding path program 1 times [2024-11-08 15:17:17,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:17,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712680159] [2024-11-08 15:17:17,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:17,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:17,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:17:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:17,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 15:17:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:17,367 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:17:17,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:17,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712680159] [2024-11-08 15:17:17,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712680159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:17:17,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:17:17,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:17:17,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814048788] [2024-11-08 15:17:17,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:17:17,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:17:17,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:17,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:17:17,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:17:17,373 INFO L87 Difference]: Start difference. First operand 85 states and 109 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 15:17:17,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:17,548 INFO L93 Difference]: Finished difference Result 285 states and 373 transitions. [2024-11-08 15:17:17,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 15:17:17,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2024-11-08 15:17:17,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:17,550 INFO L225 Difference]: With dead ends: 285 [2024-11-08 15:17:17,550 INFO L226 Difference]: Without dead ends: 208 [2024-11-08 15:17:17,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:17:17,552 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 246 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:17:17,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 443 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:17:17,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-08 15:17:17,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 202. [2024-11-08 15:17:17,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 154 states have (on average 1.344155844155844) internal successors, (207), 172 states have internal predecessors, (207), 28 states have call successors, (28), 19 states have call predecessors, (28), 19 states have return successors, (29), 20 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-08 15:17:17,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 264 transitions. [2024-11-08 15:17:17,584 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 264 transitions. Word has length 37 [2024-11-08 15:17:17,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:17,584 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 264 transitions. [2024-11-08 15:17:17,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 15:17:17,584 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 264 transitions. [2024-11-08 15:17:17,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-08 15:17:17,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:17,586 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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] [2024-11-08 15:17:17,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 15:17:17,586 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:17,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:17,587 INFO L85 PathProgramCache]: Analyzing trace with hash 995675595, now seen corresponding path program 1 times [2024-11-08 15:17:17,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:17,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550334277] [2024-11-08 15:17:17,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:17,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:17,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:17:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:17,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 15:17:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:17,706 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 15:17:17,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:17,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550334277] [2024-11-08 15:17:17,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550334277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:17:17,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:17:17,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:17:17,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119589696] [2024-11-08 15:17:17,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:17:17,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:17:17,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:17,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:17:17,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:17:17,709 INFO L87 Difference]: Start difference. First operand 202 states and 264 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 15:17:17,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:17,819 INFO L93 Difference]: Finished difference Result 481 states and 642 transitions. [2024-11-08 15:17:17,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:17:17,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-11-08 15:17:17,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:17,822 INFO L225 Difference]: With dead ends: 481 [2024-11-08 15:17:17,822 INFO L226 Difference]: Without dead ends: 287 [2024-11-08 15:17:17,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:17:17,828 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 76 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:17:17,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 455 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:17:17,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-08 15:17:17,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 285. [2024-11-08 15:17:17,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 217 states have (on average 1.2857142857142858) internal successors, (279), 236 states have internal predecessors, (279), 37 states have call successors, (37), 30 states have call predecessors, (37), 30 states have return successors, (47), 34 states have call predecessors, (47), 37 states have call successors, (47) [2024-11-08 15:17:17,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 363 transitions. [2024-11-08 15:17:17,860 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 363 transitions. Word has length 41 [2024-11-08 15:17:17,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:17,861 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 363 transitions. [2024-11-08 15:17:17,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 15:17:17,861 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 363 transitions. [2024-11-08 15:17:17,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-08 15:17:17,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:17,863 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:17:17,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 15:17:17,863 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:17,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:17,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1901282667, now seen corresponding path program 1 times [2024-11-08 15:17:17,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:17,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710971838] [2024-11-08 15:17:17,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:17,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:17,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:17:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:17,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 15:17:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:17,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 15:17:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:17,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:17:17,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:17,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710971838] [2024-11-08 15:17:17,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710971838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:17:17,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:17:17,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:17:17,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352484934] [2024-11-08 15:17:17,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:17:17,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:17:17,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:17,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:17:17,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:17:17,958 INFO L87 Difference]: Start difference. First operand 285 states and 363 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:17:18,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:18,092 INFO L93 Difference]: Finished difference Result 616 states and 803 transitions. [2024-11-08 15:17:18,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 15:17:18,092 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 55 [2024-11-08 15:17:18,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:18,097 INFO L225 Difference]: With dead ends: 616 [2024-11-08 15:17:18,097 INFO L226 Difference]: Without dead ends: 339 [2024-11-08 15:17:18,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:17:18,101 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 61 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:17:18,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 395 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:17:18,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-08 15:17:18,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2024-11-08 15:17:18,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 259 states have (on average 1.2702702702702702) internal successors, (329), 278 states have internal predecessors, (329), 41 states have call successors, (41), 30 states have call predecessors, (41), 36 states have return successors, (57), 42 states have call predecessors, (57), 41 states have call successors, (57) [2024-11-08 15:17:18,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 427 transitions. [2024-11-08 15:17:18,126 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 427 transitions. Word has length 55 [2024-11-08 15:17:18,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:18,126 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 427 transitions. [2024-11-08 15:17:18,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:17:18,126 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 427 transitions. [2024-11-08 15:17:18,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-08 15:17:18,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:18,128 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:17:18,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 15:17:18,128 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:18,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:18,128 INFO L85 PathProgramCache]: Analyzing trace with hash 588246295, now seen corresponding path program 1 times [2024-11-08 15:17:18,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:18,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168847125] [2024-11-08 15:17:18,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:18,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:18,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:17:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:18,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 15:17:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:18,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 15:17:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:18,216 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:17:18,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:18,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168847125] [2024-11-08 15:17:18,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168847125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:17:18,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:17:18,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:17:18,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257674300] [2024-11-08 15:17:18,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:17:18,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:17:18,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:18,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:17:18,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:17:18,218 INFO L87 Difference]: Start difference. First operand 337 states and 427 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:17:18,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:18,321 INFO L93 Difference]: Finished difference Result 672 states and 871 transitions. [2024-11-08 15:17:18,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:17:18,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 55 [2024-11-08 15:17:18,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:18,324 INFO L225 Difference]: With dead ends: 672 [2024-11-08 15:17:18,324 INFO L226 Difference]: Without dead ends: 343 [2024-11-08 15:17:18,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:17:18,329 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 60 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:17:18,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 309 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:17:18,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-08 15:17:18,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 341. [2024-11-08 15:17:18,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 263 states have (on average 1.2661596958174905) internal successors, (333), 282 states have internal predecessors, (333), 41 states have call successors, (41), 30 states have call predecessors, (41), 36 states have return successors, (57), 42 states have call predecessors, (57), 41 states have call successors, (57) [2024-11-08 15:17:18,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 431 transitions. [2024-11-08 15:17:18,350 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 431 transitions. Word has length 55 [2024-11-08 15:17:18,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:18,350 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 431 transitions. [2024-11-08 15:17:18,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:17:18,350 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 431 transitions. [2024-11-08 15:17:18,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-08 15:17:18,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:18,351 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:17:18,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:17:18,352 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:18,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:18,352 INFO L85 PathProgramCache]: Analyzing trace with hash 728794905, now seen corresponding path program 1 times [2024-11-08 15:17:18,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:18,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889086991] [2024-11-08 15:17:18,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:18,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:18,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:18,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:17:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:18,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 15:17:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:18,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 15:17:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:18,423 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:17:18,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:18,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889086991] [2024-11-08 15:17:18,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889086991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:17:18,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:17:18,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:17:18,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137924825] [2024-11-08 15:17:18,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:17:18,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:17:18,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:18,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:17:18,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:17:18,425 INFO L87 Difference]: Start difference. First operand 341 states and 431 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:17:18,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:18,606 INFO L93 Difference]: Finished difference Result 1016 states and 1332 transitions. [2024-11-08 15:17:18,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:17:18,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 55 [2024-11-08 15:17:18,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:18,609 INFO L225 Difference]: With dead ends: 1016 [2024-11-08 15:17:18,609 INFO L226 Difference]: Without dead ends: 683 [2024-11-08 15:17:18,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:17:18,611 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 231 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:17:18,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 326 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:17:18,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-11-08 15:17:18,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 676. [2024-11-08 15:17:18,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 515 states have (on average 1.2349514563106796) internal successors, (636), 546 states have internal predecessors, (636), 88 states have call successors, (88), 71 states have call predecessors, (88), 72 states have return successors, (133), 86 states have call predecessors, (133), 88 states have call successors, (133) [2024-11-08 15:17:18,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 857 transitions. [2024-11-08 15:17:18,650 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 857 transitions. Word has length 55 [2024-11-08 15:17:18,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:18,650 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 857 transitions. [2024-11-08 15:17:18,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:17:18,651 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 857 transitions. [2024-11-08 15:17:18,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-08 15:17:18,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:18,652 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:17:18,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:17:18,652 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:18,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:18,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1287141247, now seen corresponding path program 1 times [2024-11-08 15:17:18,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:18,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243523907] [2024-11-08 15:17:18,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:18,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:18,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:17:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:18,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:17:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:18,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 15:17:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:18,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 15:17:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:18,795 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:17:18,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:18,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243523907] [2024-11-08 15:17:18,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243523907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:17:18,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:17:18,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 15:17:18,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989429577] [2024-11-08 15:17:18,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:17:18,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 15:17:18,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:18,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 15:17:18,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:17:18,797 INFO L87 Difference]: Start difference. First operand 676 states and 857 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 15:17:19,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:19,314 INFO L93 Difference]: Finished difference Result 1747 states and 2323 transitions. [2024-11-08 15:17:19,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 15:17:19,315 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 59 [2024-11-08 15:17:19,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:19,321 INFO L225 Difference]: With dead ends: 1747 [2024-11-08 15:17:19,321 INFO L226 Difference]: Without dead ends: 1216 [2024-11-08 15:17:19,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2024-11-08 15:17:19,324 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 628 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:17:19,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 560 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 15:17:19,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-11-08 15:17:19,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1030. [2024-11-08 15:17:19,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 786 states have (on average 1.22264631043257) internal successors, (961), 839 states have internal predecessors, (961), 131 states have call successors, (131), 98 states have call predecessors, (131), 112 states have return successors, (203), 126 states have call predecessors, (203), 131 states have call successors, (203) [2024-11-08 15:17:19,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1295 transitions. [2024-11-08 15:17:19,412 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1295 transitions. Word has length 59 [2024-11-08 15:17:19,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:19,413 INFO L471 AbstractCegarLoop]: Abstraction has 1030 states and 1295 transitions. [2024-11-08 15:17:19,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 15:17:19,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1295 transitions. [2024-11-08 15:17:19,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 15:17:19,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:19,416 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:17:19,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:17:19,416 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:19,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:19,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1032451292, now seen corresponding path program 1 times [2024-11-08 15:17:19,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:19,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883712487] [2024-11-08 15:17:19,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:19,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:19,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:17:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:19,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 15:17:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:19,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:17:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:19,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 15:17:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:19,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 15:17:19,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:19,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 15:17:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:19,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:17:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:19,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 15:17:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:19,654 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 15:17:19,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:19,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883712487] [2024-11-08 15:17:19,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883712487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:17:19,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084609403] [2024-11-08 15:17:19,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:19,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:17:19,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:17:19,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:17:19,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 15:17:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:19,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 15:17:19,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:17:19,897 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:17:19,897 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:17:20,051 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 15:17:20,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084609403] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:17:20,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:17:20,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 6] total 16 [2024-11-08 15:17:20,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133867527] [2024-11-08 15:17:20,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:17:20,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 15:17:20,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:20,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 15:17:20,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-08 15:17:20,053 INFO L87 Difference]: Start difference. First operand 1030 states and 1295 transitions. Second operand has 16 states, 16 states have (on average 7.75) internal successors, (124), 11 states have internal predecessors, (124), 5 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-08 15:17:20,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:20,886 INFO L93 Difference]: Finished difference Result 2189 states and 2838 transitions. [2024-11-08 15:17:20,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-08 15:17:20,886 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.75) internal successors, (124), 11 states have internal predecessors, (124), 5 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) Word has length 100 [2024-11-08 15:17:20,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:20,888 INFO L225 Difference]: With dead ends: 2189 [2024-11-08 15:17:20,888 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 15:17:20,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 216 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=277, Invalid=1205, Unknown=0, NotChecked=0, Total=1482 [2024-11-08 15:17:20,895 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 283 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 15:17:20,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 1622 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 15:17:20,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 15:17:20,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 15:17:20,896 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) [2024-11-08 15:17:20,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 15:17:20,897 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 100 [2024-11-08 15:17:20,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:20,897 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 15:17:20,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.75) internal successors, (124), 11 states have internal predecessors, (124), 5 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-08 15:17:20,897 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 15:17:20,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 15:17:20,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 15:17:20,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 15:17:21,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:17:21,102 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:17:21,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 15:17:25,175 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 15:17:25,188 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (<= 1 |old(~pumpRunning~0)|)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0) .cse0 .cse1) (and (= 2 ~waterLevel~0) .cse0 .cse1)))) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0) .cse1))) [2024-11-08 15:17:25,204 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (<= 1 |old(~pumpRunning~0)|)) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (<= |old(~waterLevel~0)| 2))) (or (and .cse0 .cse1 (= |old(~waterLevel~0)| 2)) (and (<= 1 |old(~switchedOnBeforeTS~0)|) .cse2 .cse0 .cse1) (and (= |old(~pumpRunning~0)| 0) .cse2))) (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse1) (and (= ~pumpRunning~0 0) .cse2))) [2024-11-08 15:17:25,212 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= 1 ~switchedOnBeforeTS~0) (<= 1 |old(~pumpRunning~0)|) .cse1) (and (= |old(~pumpRunning~0)| 0) .cse0 .cse1)))) Eliminated clause: (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2024-11-08 15:17:25,217 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (<= |old(~waterLevel~0)| 2)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 (= |old(~waterLevel~0)| 2)) (and (= ~pumpRunning~0 0) .cse2) (and .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse2 .cse1))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse1) (and (= ~pumpRunning~0 0) .cse2))) [2024-11-08 15:17:25,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 03:17:25 BoogieIcfgContainer [2024-11-08 15:17:25,223 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 15:17:25,223 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 15:17:25,223 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 15:17:25,223 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 15:17:25,224 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:17:16" (3/4) ... [2024-11-08 15:17:25,226 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 15:17:25,230 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-08 15:17:25,231 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-08 15:17:25,231 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-08 15:17:25,231 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-08 15:17:25,231 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-08 15:17:25,231 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:17:25,232 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-08 15:17:25,232 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-08 15:17:25,239 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-08 15:17:25,239 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 15:17:25,240 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 15:17:25,240 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 15:17:25,240 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 15:17:25,345 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 15:17:25,345 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 15:17:25,345 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 15:17:25,346 INFO L158 Benchmark]: Toolchain (without parser) took 9604.67ms. Allocated memory was 153.1MB in the beginning and 283.1MB in the end (delta: 130.0MB). Free memory was 121.9MB in the beginning and 187.7MB in the end (delta: -65.9MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. [2024-11-08 15:17:25,346 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 153.1MB. Free memory was 122.4MB in the beginning and 122.2MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 15:17:25,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.00ms. Allocated memory is still 153.1MB. Free memory was 121.9MB in the beginning and 99.6MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 15:17:25,346 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.70ms. Allocated memory is still 153.1MB. Free memory was 99.6MB in the beginning and 96.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 15:17:25,346 INFO L158 Benchmark]: Boogie Preprocessor took 46.58ms. Allocated memory is still 153.1MB. Free memory was 96.9MB in the beginning and 94.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 15:17:25,346 INFO L158 Benchmark]: RCFGBuilder took 467.90ms. Allocated memory is still 153.1MB. Free memory was 94.8MB in the beginning and 110.3MB in the end (delta: -15.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 15:17:25,347 INFO L158 Benchmark]: TraceAbstraction took 8583.92ms. Allocated memory was 153.1MB in the beginning and 283.1MB in the end (delta: 130.0MB). Free memory was 110.3MB in the beginning and 196.1MB in the end (delta: -85.8MB). Peak memory consumption was 157.3MB. Max. memory is 16.1GB. [2024-11-08 15:17:25,347 INFO L158 Benchmark]: Witness Printer took 121.95ms. Allocated memory is still 283.1MB. Free memory was 196.1MB in the beginning and 187.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 15:17:25,348 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 153.1MB. Free memory was 122.4MB in the beginning and 122.2MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.00ms. Allocated memory is still 153.1MB. Free memory was 121.9MB in the beginning and 99.6MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.70ms. Allocated memory is still 153.1MB. Free memory was 99.6MB in the beginning and 96.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.58ms. Allocated memory is still 153.1MB. Free memory was 96.9MB in the beginning and 94.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 467.90ms. Allocated memory is still 153.1MB. Free memory was 94.8MB in the beginning and 110.3MB in the end (delta: -15.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8583.92ms. Allocated memory was 153.1MB in the beginning and 283.1MB in the end (delta: 130.0MB). Free memory was 110.3MB in the beginning and 196.1MB in the end (delta: -85.8MB). Peak memory consumption was 157.3MB. Max. memory is 16.1GB. * Witness Printer took 121.95ms. Allocated memory is still 283.1MB. Free memory was 196.1MB in the beginning and 187.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [160] - GenericResultAtLocation [Line: 230]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [230] - GenericResultAtLocation [Line: 469]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [469] - GenericResultAtLocation [Line: 835]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [835] - GenericResultAtLocation [Line: 844]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [844] - GenericResultAtLocation [Line: 893]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [893] - GenericResultAtLocation [Line: 993]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [993] * 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: 840]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1637 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1601 mSDsluCounter, 4435 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3363 mSDsCounter, 381 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2192 IncrementalHoareTripleChecker+Invalid, 2573 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 381 mSolverCounterUnsat, 1072 mSDtfsCounter, 2192 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 372 GetRequests, 275 SyntacticMatches, 4 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1030occurred in iteration=8, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 205 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 567 NumberOfCodeBlocks, 567 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 656 ConstructedInterpolants, 0 QuantifiedInterpolants, 1276 SizeOfPredicates, 2 NumberOfNonLiveVariables, 334 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 97/123 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: 173]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel <= 2)) || (((((1 <= pumpRunning) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (splverifierCounter == 0)) && (0 != systemActive))) - ProcedureContractResult [Line: 352]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) Ensures: (((pumpRunning == 0) && (((((waterLevel <= 2) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))) && (0 != systemActive)) || (((2 == waterLevel) && (1 <= \old(pumpRunning))) && (0 != systemActive)))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 267]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive))) Ensures: ((((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive))) && (((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 84]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 2))) Ensures: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 2))) && ((((((waterLevel == \old(waterLevel)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 895]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 240]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 2))) Ensures: (((((((((1 <= \old(pumpRunning)) && (0 != systemActive)) && (\old(waterLevel) == 2)) || ((((1 <= \old(switchedOnBeforeTS)) && (\old(waterLevel) <= 2)) && (1 <= \old(pumpRunning))) && (0 != systemActive))) || ((\old(pumpRunning) == 0) && (\old(waterLevel) <= 2))) && (((((pumpRunning == 0) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (\old(pumpRunning) < 1)) || (((pumpRunning == \old(pumpRunning)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)))) && (((\old(waterLevel) != 2) || (\old(pumpRunning) < 1)) || (waterLevel == 1))) && (((\old(pumpRunning) != 0) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) && (\old(waterLevel) == 2)))) && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 275]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive))) Ensures: ((((((\old(pumpRunning) != 0) || (pumpRunning == 0)) || ((1 <= pumpRunning) && (2 == waterLevel))) && ((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) < 1))) && (((((waterLevel <= 2) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))) && (0 != systemActive)) || (((\old(pumpRunning) == 0) && (waterLevel <= 2)) && (0 != systemActive)))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 72]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 2))) Ensures: (((((((((1 <= pumpRunning) && (0 != systemActive)) && (\old(waterLevel) == 2)) || ((pumpRunning == 0) && (\old(waterLevel) <= 2))) || ((((1 <= pumpRunning) && (1 <= switchedOnBeforeTS)) && (\old(waterLevel) <= 2)) && (0 != systemActive))) && ((2 == waterLevel) || (\old(waterLevel) != 2))) && ((2 == waterLevel) || (\old(waterLevel) != 1))) && (waterLevel <= 2)) && ((((((methaneLevelCritical == \old(methaneLevelCritical)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 371]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 2))) Ensures: (((((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 2))) && (pumpRunning == \result)) && (((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) RESULT: Ultimate proved your program to be correct! [2024-11-08 15:17:25,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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