./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 88f09ec5af0f641c9edfe2f7047937341e46c7f8baabeed0fd38f069cd3b5278 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:01:24,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:01:24,714 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:01:24,717 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:01:24,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:01:24,737 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:01:24,738 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:01:24,738 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:01:24,739 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:01:24,739 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:01:24,739 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:01:24,740 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:01:24,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:01:24,740 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:01:24,741 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:01:24,741 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:01:24,741 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:01:24,741 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:01:24,742 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:01:24,742 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:01:24,742 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:01:24,742 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:01:24,743 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:01:24,743 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:01:24,743 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:01:24,743 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:01:24,743 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:01:24,744 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:01:24,744 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:01:24,744 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:01:24,744 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:01:24,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:01:24,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:01:24,745 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:01:24,745 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:01:24,745 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:01:24,746 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:01:24,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:01:24,750 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:01:24,750 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:01:24,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:01:24,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:01:24,753 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88f09ec5af0f641c9edfe2f7047937341e46c7f8baabeed0fd38f069cd3b5278 [2024-10-11 03:01:24,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:01:25,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:01:25,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:01:25,017 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:01:25,017 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:01:25,018 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c [2024-10-11 03:01:26,564 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:01:26,793 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:01:26,795 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c [2024-10-11 03:01:26,814 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/75bcfb1b9/5c2606c3e2984038b75254abf4ae915a/FLAG168f181ff [2024-10-11 03:01:27,146 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/75bcfb1b9/5c2606c3e2984038b75254abf4ae915a [2024-10-11 03:01:27,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:01:27,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:01:27,159 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:01:27,159 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:01:27,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:01:27,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:01:27" (1/1) ... [2024-10-11 03:01:27,170 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b350141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:27, skipping insertion in model container [2024-10-11 03:01:27,170 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:01:27" (1/1) ... [2024-10-11 03:01:27,240 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:01:27,529 WARN L248 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_product54.cil.c[3971,3984] [2024-10-11 03:01:27,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:01:27,648 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:01:27,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] [2024-10-11 03:01:27,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [101] [2024-10-11 03:01:27,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [211] [2024-10-11 03:01:27,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [220] [2024-10-11 03:01:27,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [323] [2024-10-11 03:01:27,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [560] [2024-10-11 03:01:27,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [627] [2024-10-11 03:01:27,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [662] [2024-10-11 03:01:27,671 WARN L248 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_product54.cil.c[3971,3984] [2024-10-11 03:01:27,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:01:27,729 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:01:27,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:27 WrapperNode [2024-10-11 03:01:27,729 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:01:27,730 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:01:27,730 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:01:27,730 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:01:27,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:27" (1/1) ... [2024-10-11 03:01:27,745 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:27" (1/1) ... [2024-10-11 03:01:27,766 INFO L138 Inliner]: procedures = 59, calls = 106, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 236 [2024-10-11 03:01:27,767 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:01:27,767 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:01:27,767 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:01:27,768 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:01:27,780 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:27" (1/1) ... [2024-10-11 03:01:27,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:27" (1/1) ... [2024-10-11 03:01:27,790 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:27" (1/1) ... [2024-10-11 03:01:27,801 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]. [2024-10-11 03:01:27,801 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:27" (1/1) ... [2024-10-11 03:01:27,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:27" (1/1) ... [2024-10-11 03:01:27,805 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:27" (1/1) ... [2024-10-11 03:01:27,807 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:27" (1/1) ... [2024-10-11 03:01:27,808 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:27" (1/1) ... [2024-10-11 03:01:27,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:27" (1/1) ... [2024-10-11 03:01:27,811 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:01:27,812 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:01:27,812 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:01:27,812 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:01:27,813 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:27" (1/1) ... [2024-10-11 03:01:27,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:01:27,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:01:27,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:01:27,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:01:27,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:01:27,900 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-11 03:01:27,900 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-11 03:01:27,900 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-11 03:01:27,901 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-11 03:01:27,901 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-11 03:01:27,901 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-11 03:01:27,901 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-10-11 03:01:27,901 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-10-11 03:01:27,901 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-11 03:01:27,901 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-11 03:01:27,901 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2024-10-11 03:01:27,901 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2024-10-11 03:01:27,902 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-10-11 03:01:27,902 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-10-11 03:01:27,902 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-11 03:01:27,902 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-11 03:01:27,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:01:27,902 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-11 03:01:27,902 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-11 03:01:27,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:01:27,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:01:27,963 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:01:27,965 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:01:28,162 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-10-11 03:01:28,163 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:01:28,304 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:01:28,305 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 03:01:28,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:01:28 BoogieIcfgContainer [2024-10-11 03:01:28,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:01:28,311 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:01:28,311 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:01:28,315 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:01:28,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:01:27" (1/3) ... [2024-10-11 03:01:28,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557540e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:01:28, skipping insertion in model container [2024-10-11 03:01:28,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:27" (2/3) ... [2024-10-11 03:01:28,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557540e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:01:28, skipping insertion in model container [2024-10-11 03:01:28,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:01:28" (3/3) ... [2024-10-11 03:01:28,320 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product54.cil.c [2024-10-11 03:01:28,342 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:01:28,345 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:01:28,433 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:01:28,440 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;@2cb7a510, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:01:28,441 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:01:28,445 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 65 states have internal predecessors, (84), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 03:01:28,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-11 03:01:28,454 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:28,455 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:01:28,455 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:28,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:28,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1970980526, now seen corresponding path program 1 times [2024-10-11 03:01:28,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:28,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968971838] [2024-10-11 03:01:28,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:28,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:28,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 03:01:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:28,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 03:01:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:28,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:01:28,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:28,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968971838] [2024-10-11 03:01:28,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968971838] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:28,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:28,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:01:28,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906884722] [2024-10-11 03:01:28,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:28,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 03:01:28,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:28,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 03:01:28,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 03:01:28,702 INFO L87 Difference]: Start difference. First operand has 82 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 65 states have internal predecessors, (84), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2024-10-11 03:01:28,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:28,746 INFO L93 Difference]: Finished difference Result 162 states and 233 transitions. [2024-10-11 03:01:28,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 03:01:28,748 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 22 [2024-10-11 03:01:28,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:28,779 INFO L225 Difference]: With dead ends: 162 [2024-10-11 03:01:28,780 INFO L226 Difference]: Without dead ends: 77 [2024-10-11 03:01:28,782 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 [2024-10-11 03:01:28,785 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:28,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:01:28,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-10-11 03:01:28,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-10-11 03:01:28,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 61 states have internal predecessors, (74), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 03:01:28,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 105 transitions. [2024-10-11 03:01:28,863 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 105 transitions. Word has length 22 [2024-10-11 03:01:28,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:28,863 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 105 transitions. [2024-10-11 03:01:28,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2024-10-11 03:01:28,864 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 105 transitions. [2024-10-11 03:01:28,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-11 03:01:28,865 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:28,866 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:01:28,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:01:28,866 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:28,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:28,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1423974431, now seen corresponding path program 1 times [2024-10-11 03:01:28,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:28,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471301486] [2024-10-11 03:01:28,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:28,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:28,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 03:01:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:28,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 03:01:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:28,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:01:28,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:28,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471301486] [2024-10-11 03:01:28,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471301486] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:28,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:28,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:01:28,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274178053] [2024-10-11 03:01:28,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:28,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:01:28,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:28,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:01:28,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:01:28,980 INFO L87 Difference]: Start difference. First operand 77 states and 105 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-10-11 03:01:29,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:29,029 INFO L93 Difference]: Finished difference Result 127 states and 173 transitions. [2024-10-11 03:01:29,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:01:29,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 23 [2024-10-11 03:01:29,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:29,031 INFO L225 Difference]: With dead ends: 127 [2024-10-11 03:01:29,032 INFO L226 Difference]: Without dead ends: 69 [2024-10-11 03:01:29,033 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 [2024-10-11 03:01:29,035 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 11 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:29,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 147 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:01:29,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-10-11 03:01:29,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-10-11 03:01:29,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 47 states have (on average 1.446808510638298) internal successors, (68), 56 states have internal predecessors, (68), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-11 03:01:29,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 94 transitions. [2024-10-11 03:01:29,044 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 94 transitions. Word has length 23 [2024-10-11 03:01:29,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:29,045 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 94 transitions. [2024-10-11 03:01:29,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-10-11 03:01:29,045 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 94 transitions. [2024-10-11 03:01:29,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-11 03:01:29,047 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:29,047 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:01:29,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:01:29,051 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:29,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:29,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1817255720, now seen corresponding path program 1 times [2024-10-11 03:01:29,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:29,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719456136] [2024-10-11 03:01:29,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:29,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 03:01:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 03:01:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,164 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:01:29,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:29,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719456136] [2024-10-11 03:01:29,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719456136] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:29,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:29,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:01:29,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104200066] [2024-10-11 03:01:29,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:29,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:01:29,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:29,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:01:29,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:01:29,168 INFO L87 Difference]: Start difference. First operand 69 states and 94 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-10-11 03:01:29,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:29,200 INFO L93 Difference]: Finished difference Result 136 states and 187 transitions. [2024-10-11 03:01:29,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:01:29,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 26 [2024-10-11 03:01:29,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:29,202 INFO L225 Difference]: With dead ends: 136 [2024-10-11 03:01:29,202 INFO L226 Difference]: Without dead ends: 69 [2024-10-11 03:01:29,203 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 [2024-10-11 03:01:29,204 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 86 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:29,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 78 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:01:29,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-10-11 03:01:29,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-10-11 03:01:29,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 47 states have (on average 1.425531914893617) internal successors, (67), 56 states have internal predecessors, (67), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-11 03:01:29,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 93 transitions. [2024-10-11 03:01:29,219 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 93 transitions. Word has length 26 [2024-10-11 03:01:29,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:29,224 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 93 transitions. [2024-10-11 03:01:29,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-10-11 03:01:29,224 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 93 transitions. [2024-10-11 03:01:29,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-11 03:01:29,225 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:29,226 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:01:29,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:01:29,226 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:29,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:29,226 INFO L85 PathProgramCache]: Analyzing trace with hash -879939335, now seen corresponding path program 1 times [2024-10-11 03:01:29,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:29,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129221905] [2024-10-11 03:01:29,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:29,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 03:01:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 03:01:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 03:01:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:01:29,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:29,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129221905] [2024-10-11 03:01:29,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129221905] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:29,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:29,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:01:29,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750856097] [2024-10-11 03:01:29,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:29,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:01:29,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:29,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:01:29,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:01:29,301 INFO L87 Difference]: Start difference. First operand 69 states and 93 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 03:01:29,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:29,452 INFO L93 Difference]: Finished difference Result 210 states and 285 transitions. [2024-10-11 03:01:29,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:01:29,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2024-10-11 03:01:29,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:29,454 INFO L225 Difference]: With dead ends: 210 [2024-10-11 03:01:29,454 INFO L226 Difference]: Without dead ends: 143 [2024-10-11 03:01:29,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:01:29,456 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 138 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:29,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 156 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:01:29,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-10-11 03:01:29,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 137. [2024-10-11 03:01:29,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 96 states have (on average 1.3645833333333333) internal successors, (131), 104 states have internal predecessors, (131), 20 states have call successors, (20), 15 states have call predecessors, (20), 20 states have return successors, (31), 22 states have call predecessors, (31), 20 states have call successors, (31) [2024-10-11 03:01:29,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 182 transitions. [2024-10-11 03:01:29,472 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 182 transitions. Word has length 32 [2024-10-11 03:01:29,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:29,472 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 182 transitions. [2024-10-11 03:01:29,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 03:01:29,473 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 182 transitions. [2024-10-11 03:01:29,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-11 03:01:29,473 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:29,474 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:01:29,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:01:29,474 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:29,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:29,474 INFO L85 PathProgramCache]: Analyzing trace with hash 485214160, now seen corresponding path program 1 times [2024-10-11 03:01:29,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:29,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193866063] [2024-10-11 03:01:29,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:29,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 03:01:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:01:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:01:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 03:01:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:01:29,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:29,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193866063] [2024-10-11 03:01:29,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193866063] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:29,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:29,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:01:29,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257548980] [2024-10-11 03:01:29,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:29,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:01:29,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:29,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:01:29,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:01:29,573 INFO L87 Difference]: Start difference. First operand 137 states and 182 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 03:01:29,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:29,745 INFO L93 Difference]: Finished difference Result 276 states and 372 transitions. [2024-10-11 03:01:29,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:01:29,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2024-10-11 03:01:29,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:29,747 INFO L225 Difference]: With dead ends: 276 [2024-10-11 03:01:29,747 INFO L226 Difference]: Without dead ends: 141 [2024-10-11 03:01:29,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:01:29,749 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 53 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:29,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 232 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:01:29,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-10-11 03:01:29,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139. [2024-10-11 03:01:29,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 98 states have (on average 1.3571428571428572) internal successors, (133), 106 states have internal predecessors, (133), 20 states have call successors, (20), 15 states have call predecessors, (20), 20 states have return successors, (31), 22 states have call predecessors, (31), 20 states have call successors, (31) [2024-10-11 03:01:29,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 184 transitions. [2024-10-11 03:01:29,768 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 184 transitions. Word has length 43 [2024-10-11 03:01:29,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:29,768 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 184 transitions. [2024-10-11 03:01:29,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 03:01:29,768 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 184 transitions. [2024-10-11 03:01:29,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-11 03:01:29,769 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:29,769 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:01:29,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:01:29,770 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:29,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:29,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1103133742, now seen corresponding path program 1 times [2024-10-11 03:01:29,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:29,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392934899] [2024-10-11 03:01:29,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:29,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 03:01:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:01:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:01:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 03:01:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:01:29,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:29,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392934899] [2024-10-11 03:01:29,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392934899] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:29,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:29,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:01:29,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867544907] [2024-10-11 03:01:29,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:29,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:01:29,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:29,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:01:29,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:01:29,907 INFO L87 Difference]: Start difference. First operand 139 states and 184 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 03:01:30,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:30,036 INFO L93 Difference]: Finished difference Result 280 states and 382 transitions. [2024-10-11 03:01:30,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:01:30,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2024-10-11 03:01:30,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:30,038 INFO L225 Difference]: With dead ends: 280 [2024-10-11 03:01:30,038 INFO L226 Difference]: Without dead ends: 143 [2024-10-11 03:01:30,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:01:30,042 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 53 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:30,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 229 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:01:30,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-10-11 03:01:30,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 141. [2024-10-11 03:01:30,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 100 states have (on average 1.35) internal successors, (135), 108 states have internal predecessors, (135), 20 states have call successors, (20), 15 states have call predecessors, (20), 20 states have return successors, (31), 22 states have call predecessors, (31), 20 states have call successors, (31) [2024-10-11 03:01:30,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 186 transitions. [2024-10-11 03:01:30,068 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 186 transitions. Word has length 43 [2024-10-11 03:01:30,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:30,069 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 186 transitions. [2024-10-11 03:01:30,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 03:01:30,069 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 186 transitions. [2024-10-11 03:01:30,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-11 03:01:30,071 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:30,071 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:01:30,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:01:30,072 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:30,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:30,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1502889812, now seen corresponding path program 1 times [2024-10-11 03:01:30,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:30,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269688822] [2024-10-11 03:01:30,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:30,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:30,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 03:01:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:30,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:01:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:30,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:01:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:30,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 03:01:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:30,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:01:30,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:30,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269688822] [2024-10-11 03:01:30,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269688822] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:30,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:30,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:01:30,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430260346] [2024-10-11 03:01:30,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:30,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:01:30,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:30,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:01:30,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:01:30,155 INFO L87 Difference]: Start difference. First operand 141 states and 186 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-11 03:01:30,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:30,383 INFO L93 Difference]: Finished difference Result 412 states and 561 transitions. [2024-10-11 03:01:30,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:01:30,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2024-10-11 03:01:30,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:30,386 INFO L225 Difference]: With dead ends: 412 [2024-10-11 03:01:30,386 INFO L226 Difference]: Without dead ends: 273 [2024-10-11 03:01:30,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:01:30,387 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 206 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:30,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 240 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:01:30,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-10-11 03:01:30,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 265. [2024-10-11 03:01:30,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 188 states have (on average 1.303191489361702) internal successors, (245), 200 states have internal predecessors, (245), 40 states have call successors, (40), 33 states have call predecessors, (40), 36 states have return successors, (66), 41 states have call predecessors, (66), 40 states have call successors, (66) [2024-10-11 03:01:30,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 351 transitions. [2024-10-11 03:01:30,418 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 351 transitions. Word has length 43 [2024-10-11 03:01:30,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:30,419 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 351 transitions. [2024-10-11 03:01:30,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-11 03:01:30,419 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 351 transitions. [2024-10-11 03:01:30,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-11 03:01:30,420 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:30,420 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:01:30,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:01:30,420 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:30,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:30,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1138177469, now seen corresponding path program 1 times [2024-10-11 03:01:30,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:30,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684393765] [2024-10-11 03:01:30,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:30,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:30,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 03:01:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:30,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:01:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:30,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:01:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:30,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 03:01:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:30,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 03:01:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:30,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 03:01:30,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:30,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684393765] [2024-10-11 03:01:30,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684393765] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:30,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:30,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:01:30,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738976779] [2024-10-11 03:01:30,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:30,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:01:30,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:30,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:01:30,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:01:30,571 INFO L87 Difference]: Start difference. First operand 265 states and 351 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:01:30,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:30,813 INFO L93 Difference]: Finished difference Result 526 states and 703 transitions. [2024-10-11 03:01:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 03:01:30,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2024-10-11 03:01:30,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:30,816 INFO L225 Difference]: With dead ends: 526 [2024-10-11 03:01:30,816 INFO L226 Difference]: Without dead ends: 263 [2024-10-11 03:01:30,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-10-11 03:01:30,817 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 109 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:30,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 294 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:01:30,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-10-11 03:01:30,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 261. [2024-10-11 03:01:30,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 184 states have (on average 1.266304347826087) internal successors, (233), 196 states have internal predecessors, (233), 40 states have call successors, (40), 33 states have call predecessors, (40), 36 states have return successors, (66), 41 states have call predecessors, (66), 40 states have call successors, (66) [2024-10-11 03:01:30,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 339 transitions. [2024-10-11 03:01:30,856 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 339 transitions. Word has length 46 [2024-10-11 03:01:30,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:30,857 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 339 transitions. [2024-10-11 03:01:30,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:01:30,861 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 339 transitions. [2024-10-11 03:01:30,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-11 03:01:30,865 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:30,866 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:01:30,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:01:30,866 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:30,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:30,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1104519698, now seen corresponding path program 1 times [2024-10-11 03:01:30,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:30,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109722395] [2024-10-11 03:01:30,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:30,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:31,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:01:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:31,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 03:01:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:31,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 03:01:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:31,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:01:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:31,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 03:01:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:31,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:01:31,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:31,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109722395] [2024-10-11 03:01:31,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109722395] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:31,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:31,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:01:31,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244946317] [2024-10-11 03:01:31,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:31,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:01:31,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:31,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:01:31,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:01:31,089 INFO L87 Difference]: Start difference. First operand 261 states and 339 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-11 03:01:31,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:31,889 INFO L93 Difference]: Finished difference Result 681 states and 940 transitions. [2024-10-11 03:01:31,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-11 03:01:31,890 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 47 [2024-10-11 03:01:31,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:31,893 INFO L225 Difference]: With dead ends: 681 [2024-10-11 03:01:31,893 INFO L226 Difference]: Without dead ends: 471 [2024-10-11 03:01:31,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-10-11 03:01:31,899 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 541 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:31,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 281 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 03:01:31,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-10-11 03:01:31,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 405. [2024-10-11 03:01:31,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 285 states have (on average 1.256140350877193) internal successors, (358), 307 states have internal predecessors, (358), 62 states have call successors, (62), 47 states have call predecessors, (62), 57 states have return successors, (104), 62 states have call predecessors, (104), 62 states have call successors, (104) [2024-10-11 03:01:31,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 524 transitions. [2024-10-11 03:01:31,984 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 524 transitions. Word has length 47 [2024-10-11 03:01:31,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:31,988 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 524 transitions. [2024-10-11 03:01:31,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-11 03:01:31,989 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 524 transitions. [2024-10-11 03:01:31,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-11 03:01:31,990 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:31,990 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-11 03:01:31,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:01:31,990 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:31,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:31,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1327993652, now seen corresponding path program 1 times [2024-10-11 03:01:31,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:31,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019597954] [2024-10-11 03:01:31,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:31,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:32,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:01:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:32,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 03:01:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:32,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:01:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:32,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 03:01:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:32,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:01:32,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:32,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 03:01:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:32,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 03:01:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:32,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:01:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:32,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:01:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:32,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 03:01:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:32,242 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 03:01:32,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:32,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019597954] [2024-10-11 03:01:32,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019597954] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:01:32,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954636482] [2024-10-11 03:01:32,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:32,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:01:32,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:01:32,246 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:01:32,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 03:01:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:32,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 03:01:32,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:01:32,468 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:01:32,469 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:01:32,662 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 03:01:32,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954636482] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:01:32,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:01:32,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2024-10-11 03:01:32,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281184249] [2024-10-11 03:01:32,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:01:32,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 03:01:32,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:32,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 03:01:32,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:01:32,667 INFO L87 Difference]: Start difference. First operand 405 states and 524 transitions. Second operand has 15 states, 11 states have (on average 9.272727272727273) internal successors, (102), 10 states have internal predecessors, (102), 6 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2024-10-11 03:01:33,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:33,944 INFO L93 Difference]: Finished difference Result 837 states and 1108 transitions. [2024-10-11 03:01:33,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-11 03:01:33,945 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 9.272727272727273) internal successors, (102), 10 states have internal predecessors, (102), 6 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) Word has length 87 [2024-10-11 03:01:33,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:33,948 INFO L225 Difference]: With dead ends: 837 [2024-10-11 03:01:33,948 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 03:01:33,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 199 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=345, Invalid=1137, Unknown=0, NotChecked=0, Total=1482 [2024-10-11 03:01:33,951 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 308 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:33,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 783 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 03:01:33,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 03:01:33,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 03:01:33,952 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) [2024-10-11 03:01:33,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 03:01:33,952 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 87 [2024-10-11 03:01:33,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:33,953 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 03:01:33,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 9.272727272727273) internal successors, (102), 10 states have internal predecessors, (102), 6 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2024-10-11 03:01:33,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 03:01:33,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 03:01:33,955 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 03:01:33,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 03:01:34,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-11 03:01:34,159 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:01:34,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 03:01:36,996 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 03:01:37,009 WARN L155 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 1 ~systemActive~0) (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0) (<= 1 |old(~pumpRunning~0)|)) Eliminated clause: (and (<= 1 ~pumpRunning~0) (= 1 ~systemActive~0) (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0)) [2024-10-11 03:01:37,017 WARN L155 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|) (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse1 (<= |old(~waterLevel~0)| 2)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (<= 1 |old(~pumpRunning~0)|))) (or (and .cse0 (<= 1 |old(~switchedOnBeforeTS~0)|) .cse1 .cse2) (and .cse0 (= |old(~pumpRunning~0)| 0) .cse1) (and .cse0 .cse2 (= |old(~waterLevel~0)| 2))))) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0)) (and (= ~pumpRunning~0 0) .cse1 .cse2))) [2024-10-11 03:01:37,024 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= ~waterLevel~0 2))) (or (and .cse0 (= |old(~pumpRunning~0)| 0) .cse1) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) (<= 1 |old(~pumpRunning~0)|))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= ~waterLevel~0 2))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0)) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2024-10-11 03:01:37,029 WARN L155 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse2 (<= |old(~waterLevel~0)| 2)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2) (and (= ~pumpRunning~0 0) .cse1 .cse2) (and .cse0 .cse1 (= |old(~waterLevel~0)| 2)))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0)) (and (= ~pumpRunning~0 0) .cse1 .cse2))) [2024-10-11 03:01:37,034 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__lowWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= ~waterLevel~0 2))) (or (and .cse0 (= |old(~pumpRunning~0)| 0) .cse1) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) (<= 1 |old(~pumpRunning~0)|))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= ~waterLevel~0 2))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0)) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2024-10-11 03:01:37,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:01:37 BoogieIcfgContainer [2024-10-11 03:01:37,040 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 03:01:37,040 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 03:01:37,041 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 03:01:37,041 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 03:01:37,041 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:01:28" (3/4) ... [2024-10-11 03:01:37,043 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 03:01:37,045 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-11 03:01:37,046 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-11 03:01:37,046 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-11 03:01:37,046 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-11 03:01:37,046 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-11 03:01:37,046 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-10-11 03:01:37,046 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-11 03:01:37,046 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2024-10-11 03:01:37,046 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-10-11 03:01:37,051 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2024-10-11 03:01:37,051 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-11 03:01:37,052 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 03:01:37,052 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:01:37,052 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:01:37,131 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 03:01:37,131 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 03:01:37,132 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 03:01:37,132 INFO L158 Benchmark]: Toolchain (without parser) took 9978.25ms. Allocated memory was 130.0MB in the beginning and 299.9MB in the end (delta: 169.9MB). Free memory was 59.3MB in the beginning and 124.3MB in the end (delta: -65.0MB). Peak memory consumption was 106.6MB. Max. memory is 16.1GB. [2024-10-11 03:01:37,132 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 03:01:37,132 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.97ms. Allocated memory was 130.0MB in the beginning and 197.1MB in the end (delta: 67.1MB). Free memory was 59.0MB in the beginning and 159.7MB in the end (delta: -100.7MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2024-10-11 03:01:37,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.77ms. Allocated memory is still 197.1MB. Free memory was 159.7MB in the beginning and 157.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:01:37,133 INFO L158 Benchmark]: Boogie Preprocessor took 43.81ms. Allocated memory is still 197.1MB. Free memory was 157.7MB in the beginning and 154.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:01:37,133 INFO L158 Benchmark]: RCFGBuilder took 493.26ms. Allocated memory is still 197.1MB. Free memory was 154.6MB in the beginning and 128.4MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-11 03:01:37,133 INFO L158 Benchmark]: TraceAbstraction took 8728.91ms. Allocated memory was 197.1MB in the beginning and 299.9MB in the end (delta: 102.8MB). Free memory was 127.3MB in the beginning and 131.7MB in the end (delta: -4.3MB). Peak memory consumption was 110.2MB. Max. memory is 16.1GB. [2024-10-11 03:01:37,133 INFO L158 Benchmark]: Witness Printer took 91.11ms. Allocated memory is still 299.9MB. Free memory was 131.7MB in the beginning and 124.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 03:01:37,134 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 570.97ms. Allocated memory was 130.0MB in the beginning and 197.1MB in the end (delta: 67.1MB). Free memory was 59.0MB in the beginning and 159.7MB in the end (delta: -100.7MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.77ms. Allocated memory is still 197.1MB. Free memory was 159.7MB in the beginning and 157.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.81ms. Allocated memory is still 197.1MB. Free memory was 157.7MB in the beginning and 154.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 493.26ms. Allocated memory is still 197.1MB. Free memory was 154.6MB in the beginning and 128.4MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8728.91ms. Allocated memory was 197.1MB in the beginning and 299.9MB in the end (delta: 102.8MB). Free memory was 127.3MB in the beginning and 131.7MB in the end (delta: -4.3MB). Peak memory consumption was 110.2MB. Max. memory is 16.1GB. * Witness Printer took 91.11ms. Allocated memory is still 299.9MB. Free memory was 131.7MB in the beginning and 124.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. 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,"Specification5_spec.i","") [49] - GenericResultAtLocation [Line: 101]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [101] - GenericResultAtLocation [Line: 211]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [211] - GenericResultAtLocation [Line: 220]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [220] - GenericResultAtLocation [Line: 323]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [323] - GenericResultAtLocation [Line: 560]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [560] - GenericResultAtLocation [Line: 627]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [627] - GenericResultAtLocation [Line: 662]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [662] * 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: 216]: 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 10 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1544 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1505 mSDsluCounter, 2534 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1720 mSDsCounter, 542 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2593 IncrementalHoareTripleChecker+Invalid, 3135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 542 mSolverCounterUnsat, 814 mSDtfsCounter, 2593 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 381 GetRequests, 287 SyntacticMatches, 5 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=405occurred in iteration=9, InterpolantAutomatonStates: 86, 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, 10 MinimizatonAttempts, 86 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 499 NumberOfCodeBlocks, 499 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 574 ConstructedInterpolants, 0 QuantifiedInterpolants, 1126 SizeOfPredicates, 2 NumberOfNonLiveVariables, 309 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 84/111 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: 571]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((1 <= pumpRunning) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) - InvariantResult [Line: 570]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 450]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) Ensures: (((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))) - ProcedureContractResult [Line: 357]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) - ProcedureContractResult [Line: 135]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: (((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) - ProcedureContractResult [Line: 330]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: ((((((((1 <= pumpRunning) && (2 == waterLevel)) && (\old(waterLevel) == 2)) || (\old(pumpRunning) != 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) && (((((pumpRunning == 0) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (\old(pumpRunning) < 1)) || (((pumpRunning == \old(pumpRunning)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)))) && ((((((1 == systemActive) && (1 <= \old(switchedOnBeforeTS))) && (\old(waterLevel) <= 2)) && (1 <= \old(pumpRunning))) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (\old(waterLevel) <= 2))) || (((1 == systemActive) && (1 <= \old(pumpRunning))) && (\old(waterLevel) == 2)))) && (((\old(waterLevel) != 2) || (\old(pumpRunning) < 1)) || (waterLevel == 1))) - ProcedureContractResult [Line: 223]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 365]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: (((((\old(pumpRunning) != 0) || (pumpRunning == 0)) || ((1 <= pumpRunning) && (2 == waterLevel))) && ((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) < 1))) && ((((1 == systemActive) && (\old(pumpRunning) == 0)) && (waterLevel <= 2)) || ((((1 == systemActive) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))))) - ProcedureContractResult [Line: 123]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: (((((2 == waterLevel) || (\old(waterLevel) != 2)) && ((2 == waterLevel) || (\old(waterLevel) != 1))) && ((((((1 <= pumpRunning) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)) && (\old(waterLevel) <= 2)) || (((pumpRunning == 0) && (1 == systemActive)) && (\old(waterLevel) <= 2))) || (((1 <= pumpRunning) && (1 == systemActive)) && (\old(waterLevel) == 2)))) && (waterLevel <= 2)) - ProcedureContractResult [Line: 391]: Procedure Contract for processEnvironment__wrappee__lowWaterSensor Derived contract for procedure processEnvironment__wrappee__lowWaterSensor. Requires: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: (((((\old(pumpRunning) != 0) || (pumpRunning == 0)) || ((1 <= pumpRunning) && (2 == waterLevel))) && ((((1 == systemActive) && (\old(pumpRunning) == 0)) && (waterLevel <= 2)) || ((((1 == systemActive) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))))) && (((pumpRunning == \old(pumpRunning)) || (pumpRunning == 0)) || (\old(pumpRunning) < 1))) - ProcedureContractResult [Line: 469]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: ((pumpRunning == \result) && (((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2)))) RESULT: Ultimate proved your program to be correct! [2024-10-11 03:01:37,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE