./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC --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 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:01:49,412 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:01:49,510 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:01:49,517 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:01:49,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:01:49,548 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:01:49,548 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:01:49,549 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:01:49,549 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:01:49,549 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:01:49,550 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:01:49,550 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:01:49,550 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:01:49,550 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:01:49,551 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:01:49,551 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:01:49,551 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:01:49,551 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:01:49,552 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:01:49,552 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:01:49,552 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:01:49,552 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:01:49,552 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:01:49,552 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:01:49,553 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:01:49,553 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:01:49,553 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:01:49,553 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:01:49,553 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:01:49,554 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:01:49,554 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:01:49,554 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:01:49,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:01:49,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:01:49,555 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:01:49,555 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:01:49,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:01:49,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:01:49,555 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:01:49,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:01:49,556 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:01:49,556 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:01:49,556 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:01:49,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:01:49,556 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:01:49,556 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:01:49,557 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:01:49,557 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:01:49,557 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC 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 -> 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 [2024-11-24 01:01:49,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:01:49,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:01:49,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:01:49,931 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:01:49,932 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:01:49,933 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2024-11-24 01:01:53,347 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/data/28a8c281c/f0c8c6a78bac4de98681d59196487420/FLAGbf5272ac0 [2024-11-24 01:01:53,768 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:01:53,769 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2024-11-24 01:01:53,789 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/data/28a8c281c/f0c8c6a78bac4de98681d59196487420/FLAGbf5272ac0 [2024-11-24 01:01:53,804 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/data/28a8c281c/f0c8c6a78bac4de98681d59196487420 [2024-11-24 01:01:53,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:01:53,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:01:53,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:01:53,811 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:01:53,816 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:01:53,817 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:01:53" (1/1) ... [2024-11-24 01:01:53,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@464cd3bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:53, skipping insertion in model container [2024-11-24 01:01:53,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:01:53" (1/1) ... [2024-11-24 01:01:53,859 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:01:54,035 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c[1605,1618] [2024-11-24 01:01:54,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:01:54,263 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:01:54,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-24 01:01:54,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] [2024-11-24 01:01:54,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [283] [2024-11-24 01:01:54,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [353] [2024-11-24 01:01:54,278 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [454] [2024-11-24 01:01:54,278 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [820] [2024-11-24 01:01:54,278 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [855] [2024-11-24 01:01:54,278 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [905] [2024-11-24 01:01:54,286 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c[1605,1618] [2024-11-24 01:01:54,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:01:54,381 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:01:54,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:54 WrapperNode [2024-11-24 01:01:54,382 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:01:54,383 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:01:54,383 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:01:54,384 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:01:54,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:54" (1/1) ... [2024-11-24 01:01:54,417 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:54" (1/1) ... [2024-11-24 01:01:54,443 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 213 [2024-11-24 01:01:54,443 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:01:54,444 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:01:54,444 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:01:54,444 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:01:54,455 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:54" (1/1) ... [2024-11-24 01:01:54,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:54" (1/1) ... [2024-11-24 01:01:54,458 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:54" (1/1) ... [2024-11-24 01:01:54,473 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 01:01:54,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:54" (1/1) ... [2024-11-24 01:01:54,474 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:54" (1/1) ... [2024-11-24 01:01:54,479 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:54" (1/1) ... [2024-11-24 01:01:54,484 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:54" (1/1) ... [2024-11-24 01:01:54,492 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:54" (1/1) ... [2024-11-24 01:01:54,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:54" (1/1) ... [2024-11-24 01:01:54,498 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:54" (1/1) ... [2024-11-24 01:01:54,500 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:01:54,505 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:01:54,505 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:01:54,505 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:01:54,506 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:54" (1/1) ... [2024-11-24 01:01:54,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:01:54,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:01:54,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:01:54,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:01:54,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:01:54,587 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-24 01:01:54,587 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-24 01:01:54,587 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-24 01:01:54,587 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-24 01:01:54,587 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-24 01:01:54,587 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-24 01:01:54,587 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-24 01:01:54,588 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-24 01:01:54,588 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-24 01:01:54,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-24 01:01:54,588 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-24 01:01:54,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-24 01:01:54,588 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-24 01:01:54,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-24 01:01:54,588 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-24 01:01:54,588 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-24 01:01:54,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:01:54,588 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-24 01:01:54,588 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-24 01:01:54,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:01:54,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:01:54,696 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:01:54,698 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:01:55,155 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-11-24 01:01:55,156 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:01:55,174 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:01:55,174 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-24 01:01:55,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:01:55 BoogieIcfgContainer [2024-11-24 01:01:55,178 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:01:55,181 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:01:55,181 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:01:55,188 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:01:55,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:01:53" (1/3) ... [2024-11-24 01:01:55,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d49a069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:01:55, skipping insertion in model container [2024-11-24 01:01:55,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:54" (2/3) ... [2024-11-24 01:01:55,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d49a069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:01:55, skipping insertion in model container [2024-11-24 01:01:55,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:01:55" (3/3) ... [2024-11-24 01:01:55,191 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product47.cil.c [2024-11-24 01:01:55,212 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:01:55,214 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec5_product47.cil.c that has 10 procedures, 103 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-24 01:01:55,289 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:01:55,307 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;@3e5e6c9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:01:55,307 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:01:55,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 76 states have (on average 1.368421052631579) internal successors, (104), 85 states have internal predecessors, (104), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 01:01:55,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-24 01:01:55,324 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:55,325 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:55,326 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:55,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:55,332 INFO L85 PathProgramCache]: Analyzing trace with hash 868506466, now seen corresponding path program 1 times [2024-11-24 01:01:55,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:55,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872679225] [2024-11-24 01:01:55,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:55,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:55,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 01:01:55,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:55,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872679225] [2024-11-24 01:01:55,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872679225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:55,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:55,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:01:55,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239820451] [2024-11-24 01:01:55,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:55,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:01:55,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:55,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:01:55,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:01:55,628 INFO L87 Difference]: Start difference. First operand has 103 states, 76 states have (on average 1.368421052631579) internal successors, (104), 85 states have internal predecessors, (104), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 01:01:55,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:55,666 INFO L93 Difference]: Finished difference Result 197 states and 266 transitions. [2024-11-24 01:01:55,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:01:55,669 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-24 01:01:55,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:55,681 INFO L225 Difference]: With dead ends: 197 [2024-11-24 01:01:55,681 INFO L226 Difference]: Without dead ends: 94 [2024-11-24 01:01:55,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:01:55,693 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:01:55,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:01:55,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-24 01:01:55,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-24 01:01:55,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.3043478260869565) internal successors, (90), 77 states have internal predecessors, (90), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 01:01:55,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 121 transitions. [2024-11-24 01:01:55,769 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 121 transitions. Word has length 32 [2024-11-24 01:01:55,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:55,770 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 121 transitions. [2024-11-24 01:01:55,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 01:01:55,771 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 121 transitions. [2024-11-24 01:01:55,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-24 01:01:55,776 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:55,776 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:55,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:01:55,777 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:55,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:55,779 INFO L85 PathProgramCache]: Analyzing trace with hash 466465948, now seen corresponding path program 1 times [2024-11-24 01:01:55,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:55,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944156917] [2024-11-24 01:01:55,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:55,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:56,027 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 01:01:56,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:56,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944156917] [2024-11-24 01:01:56,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944156917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:56,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:56,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:01:56,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302200897] [2024-11-24 01:01:56,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:56,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:01:56,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:56,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:01:56,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:01:56,034 INFO L87 Difference]: Start difference. First operand 94 states and 121 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 01:01:56,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:56,077 INFO L93 Difference]: Finished difference Result 151 states and 193 transitions. [2024-11-24 01:01:56,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:01:56,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-24 01:01:56,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:56,079 INFO L225 Difference]: With dead ends: 151 [2024-11-24 01:01:56,083 INFO L226 Difference]: Without dead ends: 86 [2024-11-24 01:01:56,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:01:56,084 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 16 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:01:56,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 198 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:01:56,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-24 01:01:56,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-24 01:01:56,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 72 states have internal predecessors, (84), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-24 01:01:56,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 110 transitions. [2024-11-24 01:01:56,108 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 110 transitions. Word has length 32 [2024-11-24 01:01:56,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:56,113 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 110 transitions. [2024-11-24 01:01:56,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 01:01:56,113 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 110 transitions. [2024-11-24 01:01:56,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-24 01:01:56,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:56,116 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:56,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:01:56,116 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:56,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:56,117 INFO L85 PathProgramCache]: Analyzing trace with hash 454616413, now seen corresponding path program 1 times [2024-11-24 01:01:56,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:56,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781530063] [2024-11-24 01:01:56,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:56,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:56,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 01:01:56,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:56,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781530063] [2024-11-24 01:01:56,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781530063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:56,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:56,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:01:56,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076949878] [2024-11-24 01:01:56,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:56,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:01:56,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:56,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:01:56,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:01:56,288 INFO L87 Difference]: Start difference. First operand 86 states and 110 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-24 01:01:56,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:56,336 INFO L93 Difference]: Finished difference Result 241 states and 314 transitions. [2024-11-24 01:01:56,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:01:56,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 36 [2024-11-24 01:01:56,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:56,339 INFO L225 Difference]: With dead ends: 241 [2024-11-24 01:01:56,339 INFO L226 Difference]: Without dead ends: 163 [2024-11-24 01:01:56,340 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:01:56,341 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 86 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:01:56,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 224 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:01:56,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-24 01:01:56,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 160. [2024-11-24 01:01:56,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 117 states have (on average 1.3333333333333333) internal successors, (156), 132 states have internal predecessors, (156), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 19 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-24 01:01:56,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 208 transitions. [2024-11-24 01:01:56,371 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 208 transitions. Word has length 36 [2024-11-24 01:01:56,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:56,371 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 208 transitions. [2024-11-24 01:01:56,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-24 01:01:56,372 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 208 transitions. [2024-11-24 01:01:56,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-24 01:01:56,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:56,374 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:56,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:01:56,375 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:56,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:56,375 INFO L85 PathProgramCache]: Analyzing trace with hash 2102142547, now seen corresponding path program 1 times [2024-11-24 01:01:56,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:56,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717065573] [2024-11-24 01:01:56,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:56,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:56,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:01:56,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:56,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717065573] [2024-11-24 01:01:56,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717065573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:56,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:56,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:01:56,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607156984] [2024-11-24 01:01:56,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:56,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:01:56,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:56,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:01:56,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:01:56,577 INFO L87 Difference]: Start difference. First operand 160 states and 208 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-24 01:01:56,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:56,883 INFO L93 Difference]: Finished difference Result 410 states and 541 transitions. [2024-11-24 01:01:56,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:01:56,884 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2024-11-24 01:01:56,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:56,887 INFO L225 Difference]: With dead ends: 410 [2024-11-24 01:01:56,887 INFO L226 Difference]: Without dead ends: 258 [2024-11-24 01:01:56,889 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:01:56,890 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 79 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:01:56,890 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 458 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:01:56,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-24 01:01:56,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 257. [2024-11-24 01:01:56,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 190 states have (on average 1.2842105263157895) internal successors, (244), 207 states have internal predecessors, (244), 36 states have call successors, (36), 30 states have call predecessors, (36), 30 states have return successors, (44), 33 states have call predecessors, (44), 36 states have call successors, (44) [2024-11-24 01:01:56,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 324 transitions. [2024-11-24 01:01:56,953 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 324 transitions. Word has length 40 [2024-11-24 01:01:56,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:56,954 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 324 transitions. [2024-11-24 01:01:56,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-24 01:01:56,954 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 324 transitions. [2024-11-24 01:01:56,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 01:01:56,960 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:56,960 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:56,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:01:56,960 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:56,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:56,961 INFO L85 PathProgramCache]: Analyzing trace with hash -718764182, now seen corresponding path program 1 times [2024-11-24 01:01:56,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:56,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523541369] [2024-11-24 01:01:56,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:56,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:57,253 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 01:01:57,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:57,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523541369] [2024-11-24 01:01:57,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523541369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:57,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:57,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:01:57,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534254817] [2024-11-24 01:01:57,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:57,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:01:57,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:57,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:01:57,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:01:57,258 INFO L87 Difference]: Start difference. First operand 257 states and 324 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 01:01:57,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:57,598 INFO L93 Difference]: Finished difference Result 962 states and 1269 transitions. [2024-11-24 01:01:57,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:01:57,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (5), 2 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 58 [2024-11-24 01:01:57,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:57,617 INFO L225 Difference]: With dead ends: 962 [2024-11-24 01:01:57,618 INFO L226 Difference]: Without dead ends: 713 [2024-11-24 01:01:57,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:01:57,621 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 158 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:01:57,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 374 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:01:57,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-24 01:01:57,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 694. [2024-11-24 01:01:57,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 517 states have (on average 1.2707930367504836) internal successors, (657), 557 states have internal predecessors, (657), 95 states have call successors, (95), 79 states have call predecessors, (95), 81 states have return successors, (145), 91 states have call predecessors, (145), 95 states have call successors, (145) [2024-11-24 01:01:57,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 897 transitions. [2024-11-24 01:01:57,785 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 897 transitions. Word has length 58 [2024-11-24 01:01:57,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:57,787 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 897 transitions. [2024-11-24 01:01:57,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 01:01:57,787 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 897 transitions. [2024-11-24 01:01:57,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 01:01:57,794 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:57,795 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:57,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:01:57,795 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:57,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:57,796 INFO L85 PathProgramCache]: Analyzing trace with hash -2104967576, now seen corresponding path program 1 times [2024-11-24 01:01:57,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:57,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048134623] [2024-11-24 01:01:57,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:57,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:57,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:58,010 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 01:01:58,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:58,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048134623] [2024-11-24 01:01:58,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048134623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:58,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:58,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:01:58,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054283917] [2024-11-24 01:01:58,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:58,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:01:58,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:58,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:01:58,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:01:58,013 INFO L87 Difference]: Start difference. First operand 694 states and 897 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:01:58,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:58,163 INFO L93 Difference]: Finished difference Result 1398 states and 1878 transitions. [2024-11-24 01:01:58,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:01:58,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 1 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 58 [2024-11-24 01:01:58,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:58,177 INFO L225 Difference]: With dead ends: 1398 [2024-11-24 01:01:58,177 INFO L226 Difference]: Without dead ends: 712 [2024-11-24 01:01:58,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:01:58,186 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 422 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 [2024-11-24 01:01:58,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 422 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:01:58,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-24 01:01:58,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-24 01:01:58,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 535 states have (on average 1.2616822429906542) internal successors, (675), 575 states have internal predecessors, (675), 95 states have call successors, (95), 79 states have call predecessors, (95), 81 states have return successors, (145), 91 states have call predecessors, (145), 95 states have call successors, (145) [2024-11-24 01:01:58,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 915 transitions. [2024-11-24 01:01:58,321 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 915 transitions. Word has length 58 [2024-11-24 01:01:58,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:58,324 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 915 transitions. [2024-11-24 01:01:58,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:01:58,325 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 915 transitions. [2024-11-24 01:01:58,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 01:01:58,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:58,328 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:58,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:01:58,329 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:58,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:58,329 INFO L85 PathProgramCache]: Analyzing trace with hash -181739542, now seen corresponding path program 1 times [2024-11-24 01:01:58,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:58,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721291425] [2024-11-24 01:01:58,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:58,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:58,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 01:01:58,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:58,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721291425] [2024-11-24 01:01:58,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721291425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:58,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:58,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:01:58,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009639639] [2024-11-24 01:01:58,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:58,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:01:58,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:58,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:01:58,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:01:58,516 INFO L87 Difference]: Start difference. First operand 712 states and 915 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 01:01:58,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:58,643 INFO L93 Difference]: Finished difference Result 1297 states and 1709 transitions. [2024-11-24 01:01:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:01:58,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 58 [2024-11-24 01:01:58,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:58,649 INFO L225 Difference]: With dead ends: 1297 [2024-11-24 01:01:58,650 INFO L226 Difference]: Without dead ends: 593 [2024-11-24 01:01:58,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:01:58,658 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 88 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:01:58,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 439 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:01:58,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-24 01:01:58,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 585. [2024-11-24 01:01:58,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 436 states have (on average 1.25) internal successors, (545), 467 states have internal predecessors, (545), 80 states have call successors, (80), 66 states have call predecessors, (80), 68 states have return successors, (116), 76 states have call predecessors, (116), 80 states have call successors, (116) [2024-11-24 01:01:58,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 741 transitions. [2024-11-24 01:01:58,755 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 741 transitions. Word has length 58 [2024-11-24 01:01:58,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:58,755 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 741 transitions. [2024-11-24 01:01:58,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 01:01:58,757 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 741 transitions. [2024-11-24 01:01:58,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 01:01:58,759 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:58,759 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:58,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:01:58,759 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:58,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:58,761 INFO L85 PathProgramCache]: Analyzing trace with hash -201063982, now seen corresponding path program 1 times [2024-11-24 01:01:58,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:58,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313753788] [2024-11-24 01:01:58,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:58,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:59,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 01:01:59,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:59,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313753788] [2024-11-24 01:01:59,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313753788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:59,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:59,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:01:59,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670248928] [2024-11-24 01:01:59,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:59,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:01:59,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:59,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:01:59,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:01:59,129 INFO L87 Difference]: Start difference. First operand 585 states and 741 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 01:01:59,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:59,839 INFO L93 Difference]: Finished difference Result 1735 states and 2279 transitions. [2024-11-24 01:01:59,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:01:59,840 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 62 [2024-11-24 01:01:59,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:59,848 INFO L225 Difference]: With dead ends: 1735 [2024-11-24 01:01:59,848 INFO L226 Difference]: Without dead ends: 1259 [2024-11-24 01:01:59,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:01:59,851 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 365 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:01:59,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 591 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:01:59,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2024-11-24 01:01:59,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1136. [2024-11-24 01:01:59,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 845 states have (on average 1.2284023668639052) internal successors, (1038), 907 states have internal predecessors, (1038), 153 states have call successors, (153), 117 states have call predecessors, (153), 137 states have return successors, (237), 150 states have call predecessors, (237), 153 states have call successors, (237) [2024-11-24 01:01:59,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1428 transitions. [2024-11-24 01:01:59,981 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1428 transitions. Word has length 62 [2024-11-24 01:01:59,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:59,982 INFO L471 AbstractCegarLoop]: Abstraction has 1136 states and 1428 transitions. [2024-11-24 01:01:59,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 01:01:59,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1428 transitions. [2024-11-24 01:01:59,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-24 01:01:59,986 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:59,991 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:59,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:01:59,991 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:59,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:59,992 INFO L85 PathProgramCache]: Analyzing trace with hash 922167942, now seen corresponding path program 1 times [2024-11-24 01:01:59,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:59,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184440180] [2024-11-24 01:01:59,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:59,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:00,056 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-24 01:02:00,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:00,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184440180] [2024-11-24 01:02:00,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184440180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:02:00,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:02:00,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:02:00,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299905550] [2024-11-24 01:02:00,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:02:00,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:02:00,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:00,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:02:00,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:02:00,057 INFO L87 Difference]: Start difference. First operand 1136 states and 1428 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-24 01:02:00,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:00,221 INFO L93 Difference]: Finished difference Result 1334 states and 1675 transitions. [2024-11-24 01:02:00,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:02:00,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 91 [2024-11-24 01:02:00,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:00,227 INFO L225 Difference]: With dead ends: 1334 [2024-11-24 01:02:00,227 INFO L226 Difference]: Without dead ends: 557 [2024-11-24 01:02:00,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:02:00,230 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 141 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:00,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 265 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:02:00,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-24 01:02:00,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2024-11-24 01:02:00,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 415 states have (on average 1.1927710843373494) internal successors, (495), 443 states have internal predecessors, (495), 73 states have call successors, (73), 58 states have call predecessors, (73), 68 states have return successors, (115), 73 states have call predecessors, (115), 73 states have call successors, (115) [2024-11-24 01:02:00,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 683 transitions. [2024-11-24 01:02:00,299 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 683 transitions. Word has length 91 [2024-11-24 01:02:00,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:00,299 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 683 transitions. [2024-11-24 01:02:00,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-24 01:02:00,300 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 683 transitions. [2024-11-24 01:02:00,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 01:02:00,301 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:00,301 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:00,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:02:00,301 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:00,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:00,302 INFO L85 PathProgramCache]: Analyzing trace with hash 408308924, now seen corresponding path program 1 times [2024-11-24 01:02:00,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:00,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902495038] [2024-11-24 01:02:00,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:00,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:00,597 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-24 01:02:00,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:00,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902495038] [2024-11-24 01:02:00,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902495038] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:02:00,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951825854] [2024-11-24 01:02:00,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:00,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:02:00,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:02:00,604 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:02:00,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:02:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:00,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:02:00,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:02:01,027 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 27 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:02:01,027 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:02:01,383 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-24 01:02:01,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951825854] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:02:01,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:02:01,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2024-11-24 01:02:01,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735023464] [2024-11-24 01:02:01,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:02:01,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:02:01,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:01,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:02:01,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:02:01,386 INFO L87 Difference]: Start difference. First operand 557 states and 683 transitions. Second operand has 15 states, 15 states have (on average 9.4) internal successors, (141), 13 states have internal predecessors, (141), 7 states have call successors, (24), 4 states have call predecessors, (24), 8 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-24 01:02:02,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:02,289 INFO L93 Difference]: Finished difference Result 1258 states and 1608 transitions. [2024-11-24 01:02:02,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:02:02,290 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.4) internal successors, (141), 13 states have internal predecessors, (141), 7 states have call successors, (24), 4 states have call predecessors, (24), 8 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22) Word has length 104 [2024-11-24 01:02:02,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:02,297 INFO L225 Difference]: With dead ends: 1258 [2024-11-24 01:02:02,298 INFO L226 Difference]: Without dead ends: 756 [2024-11-24 01:02:02,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 205 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2024-11-24 01:02:02,303 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 299 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:02,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 1365 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:02:02,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2024-11-24 01:02:02,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 660. [2024-11-24 01:02:02,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 487 states have (on average 1.1848049281314168) internal successors, (577), 524 states have internal predecessors, (577), 88 states have call successors, (88), 76 states have call predecessors, (88), 84 states have return successors, (124), 86 states have call predecessors, (124), 88 states have call successors, (124) [2024-11-24 01:02:02,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 789 transitions. [2024-11-24 01:02:02,409 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 789 transitions. Word has length 104 [2024-11-24 01:02:02,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:02,410 INFO L471 AbstractCegarLoop]: Abstraction has 660 states and 789 transitions. [2024-11-24 01:02:02,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.4) internal successors, (141), 13 states have internal predecessors, (141), 7 states have call successors, (24), 4 states have call predecessors, (24), 8 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-24 01:02:02,411 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 789 transitions. [2024-11-24 01:02:02,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-24 01:02:02,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:02,420 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:02,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:02:02,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:02:02,624 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:02,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:02,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1672823508, now seen corresponding path program 1 times [2024-11-24 01:02:02,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:02,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998724110] [2024-11-24 01:02:02,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:02,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:03,129 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 86 proven. 31 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-24 01:02:03,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:03,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998724110] [2024-11-24 01:02:03,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998724110] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:02:03,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272210785] [2024-11-24 01:02:03,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:03,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:02:03,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:02:03,135 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:02:03,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:02:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:03,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 01:02:03,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:02:03,760 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 150 proven. 3 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-24 01:02:03,760 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:02:04,602 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 73 proven. 38 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-24 01:02:04,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272210785] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:02:04,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:02:04,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2024-11-24 01:02:04,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496618731] [2024-11-24 01:02:04,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:02:04,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-24 01:02:04,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:04,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-24 01:02:04,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2024-11-24 01:02:04,606 INFO L87 Difference]: Start difference. First operand 660 states and 789 transitions. Second operand has 25 states, 25 states have (on average 8.36) internal successors, (209), 22 states have internal predecessors, (209), 10 states have call successors, (34), 5 states have call predecessors, (34), 11 states have return successors, (39), 11 states have call predecessors, (39), 10 states have call successors, (39) [2024-11-24 01:02:07,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:07,531 INFO L93 Difference]: Finished difference Result 1911 states and 2406 transitions. [2024-11-24 01:02:07,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-24 01:02:07,533 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.36) internal successors, (209), 22 states have internal predecessors, (209), 10 states have call successors, (34), 5 states have call predecessors, (34), 11 states have return successors, (39), 11 states have call predecessors, (39), 10 states have call successors, (39) Word has length 187 [2024-11-24 01:02:07,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:07,543 INFO L225 Difference]: With dead ends: 1911 [2024-11-24 01:02:07,543 INFO L226 Difference]: Without dead ends: 1229 [2024-11-24 01:02:07,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 368 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=758, Invalid=3664, Unknown=0, NotChecked=0, Total=4422 [2024-11-24 01:02:07,551 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 839 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 1730 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 2115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 1730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:07,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 979 Invalid, 2115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 1730 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 01:02:07,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2024-11-24 01:02:07,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1132. [2024-11-24 01:02:07,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 847 states have (on average 1.1168831168831168) internal successors, (946), 886 states have internal predecessors, (946), 154 states have call successors, (154), 137 states have call predecessors, (154), 130 states have return successors, (178), 132 states have call predecessors, (178), 154 states have call successors, (178) [2024-11-24 01:02:07,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1278 transitions. [2024-11-24 01:02:07,691 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1278 transitions. Word has length 187 [2024-11-24 01:02:07,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:07,692 INFO L471 AbstractCegarLoop]: Abstraction has 1132 states and 1278 transitions. [2024-11-24 01:02:07,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.36) internal successors, (209), 22 states have internal predecessors, (209), 10 states have call successors, (34), 5 states have call predecessors, (34), 11 states have return successors, (39), 11 states have call predecessors, (39), 10 states have call successors, (39) [2024-11-24 01:02:07,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1278 transitions. [2024-11-24 01:02:07,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-24 01:02:07,699 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:07,699 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:07,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:02:07,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:02:07,900 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:07,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:07,901 INFO L85 PathProgramCache]: Analyzing trace with hash -342331762, now seen corresponding path program 1 times [2024-11-24 01:02:07,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:07,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361907036] [2024-11-24 01:02:07,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:07,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:08,365 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 85 proven. 64 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-24 01:02:08,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:08,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361907036] [2024-11-24 01:02:08,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361907036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:02:08,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174984913] [2024-11-24 01:02:08,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:08,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:02:08,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:02:08,369 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:02:08,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:02:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:08,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-24 01:02:08,560 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:02:08,794 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 190 proven. 9 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-24 01:02:08,794 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:02:09,504 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 94 proven. 54 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-24 01:02:09,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174984913] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:02:09,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:02:09,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2024-11-24 01:02:09,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326035975] [2024-11-24 01:02:09,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:02:09,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 01:02:09,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:09,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 01:02:09,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:02:09,509 INFO L87 Difference]: Start difference. First operand 1132 states and 1278 transitions. Second operand has 23 states, 23 states have (on average 10.304347826086957) internal successors, (237), 20 states have internal predecessors, (237), 9 states have call successors, (44), 5 states have call predecessors, (44), 14 states have return successors, (44), 12 states have call predecessors, (44), 9 states have call successors, (44) [2024-11-24 01:02:10,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:10,632 INFO L93 Difference]: Finished difference Result 2215 states and 2520 transitions. [2024-11-24 01:02:10,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 01:02:10,633 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.304347826086957) internal successors, (237), 20 states have internal predecessors, (237), 9 states have call successors, (44), 5 states have call predecessors, (44), 14 states have return successors, (44), 12 states have call predecessors, (44), 9 states have call successors, (44) Word has length 211 [2024-11-24 01:02:10,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:10,642 INFO L225 Difference]: With dead ends: 2215 [2024-11-24 01:02:10,643 INFO L226 Difference]: Without dead ends: 1185 [2024-11-24 01:02:10,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 418 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=299, Invalid=1107, Unknown=0, NotChecked=0, Total=1406 [2024-11-24 01:02:10,647 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 447 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:10,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 766 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:02:10,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2024-11-24 01:02:10,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1123. [2024-11-24 01:02:10,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 843 states have (on average 1.1091340450771057) internal successors, (935), 879 states have internal predecessors, (935), 145 states have call successors, (145), 138 states have call predecessors, (145), 134 states have return successors, (169), 129 states have call predecessors, (169), 145 states have call successors, (169) [2024-11-24 01:02:10,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1249 transitions. [2024-11-24 01:02:10,806 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1249 transitions. Word has length 211 [2024-11-24 01:02:10,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:10,807 INFO L471 AbstractCegarLoop]: Abstraction has 1123 states and 1249 transitions. [2024-11-24 01:02:10,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.304347826086957) internal successors, (237), 20 states have internal predecessors, (237), 9 states have call successors, (44), 5 states have call predecessors, (44), 14 states have return successors, (44), 12 states have call predecessors, (44), 9 states have call successors, (44) [2024-11-24 01:02:10,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1249 transitions. [2024-11-24 01:02:10,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-24 01:02:10,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:10,816 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:10,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:02:11,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-24 01:02:11,021 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:11,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:11,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1295119437, now seen corresponding path program 1 times [2024-11-24 01:02:11,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:11,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930528301] [2024-11-24 01:02:11,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:11,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:11,980 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 90 proven. 56 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-24 01:02:11,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:11,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930528301] [2024-11-24 01:02:11,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930528301] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:02:11,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658730378] [2024-11-24 01:02:11,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:11,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:02:11,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:02:11,986 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:02:11,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:02:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:12,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 01:02:12,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:02:12,513 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 134 proven. 25 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-24 01:02:12,514 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:02:13,463 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 95 proven. 44 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-24 01:02:13,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658730378] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:02:13,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:02:13,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 13] total 21 [2024-11-24 01:02:13,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879011284] [2024-11-24 01:02:13,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:02:13,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 01:02:13,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:13,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 01:02:13,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:02:13,470 INFO L87 Difference]: Start difference. First operand 1123 states and 1249 transitions. Second operand has 21 states, 21 states have (on average 11.333333333333334) internal successors, (238), 20 states have internal predecessors, (238), 15 states have call successors, (47), 8 states have call predecessors, (47), 14 states have return successors, (46), 15 states have call predecessors, (46), 15 states have call successors, (46) [2024-11-24 01:02:14,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:14,878 INFO L93 Difference]: Finished difference Result 2165 states and 2451 transitions. [2024-11-24 01:02:14,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 01:02:14,879 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 11.333333333333334) internal successors, (238), 20 states have internal predecessors, (238), 15 states have call successors, (47), 8 states have call predecessors, (47), 14 states have return successors, (46), 15 states have call predecessors, (46), 15 states have call successors, (46) Word has length 212 [2024-11-24 01:02:14,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:14,890 INFO L225 Difference]: With dead ends: 2165 [2024-11-24 01:02:14,890 INFO L226 Difference]: Without dead ends: 1531 [2024-11-24 01:02:14,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 418 SyntacticMatches, 8 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=389, Invalid=943, Unknown=0, NotChecked=0, Total=1332 [2024-11-24 01:02:14,895 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 621 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:14,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 846 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:02:14,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2024-11-24 01:02:15,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1395. [2024-11-24 01:02:15,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 1047 states have (on average 1.1021967526265521) internal successors, (1154), 1085 states have internal predecessors, (1154), 183 states have call successors, (183), 174 states have call predecessors, (183), 164 states have return successors, (200), 163 states have call predecessors, (200), 183 states have call successors, (200) [2024-11-24 01:02:15,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1537 transitions. [2024-11-24 01:02:15,121 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1537 transitions. Word has length 212 [2024-11-24 01:02:15,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:15,122 INFO L471 AbstractCegarLoop]: Abstraction has 1395 states and 1537 transitions. [2024-11-24 01:02:15,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.333333333333334) internal successors, (238), 20 states have internal predecessors, (238), 15 states have call successors, (47), 8 states have call predecessors, (47), 14 states have return successors, (46), 15 states have call predecessors, (46), 15 states have call successors, (46) [2024-11-24 01:02:15,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1537 transitions. [2024-11-24 01:02:15,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-24 01:02:15,130 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:15,130 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:15,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 01:02:15,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:02:15,335 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:15,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:15,336 INFO L85 PathProgramCache]: Analyzing trace with hash -802018879, now seen corresponding path program 1 times [2024-11-24 01:02:15,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:15,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037326489] [2024-11-24 01:02:15,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:15,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:16,695 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 93 proven. 135 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-24 01:02:16,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:16,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037326489] [2024-11-24 01:02:16,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037326489] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:02:16,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014177375] [2024-11-24 01:02:16,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:16,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:02:16,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:02:16,699 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:02:16,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:02:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:16,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-24 01:02:16,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:02:17,398 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 150 proven. 87 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-24 01:02:17,398 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:02:18,741 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 91 proven. 134 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-24 01:02:18,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014177375] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:02:18,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:02:18,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 16] total 29 [2024-11-24 01:02:18,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715221446] [2024-11-24 01:02:18,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:02:18,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-24 01:02:18,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:18,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-24 01:02:18,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2024-11-24 01:02:18,746 INFO L87 Difference]: Start difference. First operand 1395 states and 1537 transitions. Second operand has 29 states, 29 states have (on average 10.448275862068966) internal successors, (303), 28 states have internal predecessors, (303), 19 states have call successors, (63), 11 states have call predecessors, (63), 20 states have return successors, (65), 19 states have call predecessors, (65), 19 states have call successors, (65) [2024-11-24 01:02:20,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:20,551 INFO L93 Difference]: Finished difference Result 2262 states and 2508 transitions. [2024-11-24 01:02:20,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 01:02:20,552 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.448275862068966) internal successors, (303), 28 states have internal predecessors, (303), 19 states have call successors, (63), 11 states have call predecessors, (63), 20 states have return successors, (65), 19 states have call predecessors, (65), 19 states have call successors, (65) Word has length 261 [2024-11-24 01:02:20,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:20,558 INFO L225 Difference]: With dead ends: 2262 [2024-11-24 01:02:20,558 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 01:02:20,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 511 SyntacticMatches, 9 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=459, Invalid=1611, Unknown=0, NotChecked=0, Total=2070 [2024-11-24 01:02:20,564 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 843 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:20,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 1283 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 1611 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 01:02:20,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 01:02:20,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 01:02:20,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:02:20,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 01:02:20,568 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 261 [2024-11-24 01:02:20,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:20,568 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 01:02:20,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.448275862068966) internal successors, (303), 28 states have internal predecessors, (303), 19 states have call successors, (63), 11 states have call predecessors, (63), 20 states have return successors, (65), 19 states have call predecessors, (65), 19 states have call successors, (65) [2024-11-24 01:02:20,569 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 01:02:20,570 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 01:02:20,573 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:02:20,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-24 01:02:20,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:02:20,777 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:20,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 01:02:42,304 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:02:42,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:02:42 BoogieIcfgContainer [2024-11-24 01:02:42,320 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:02:42,321 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:02:42,321 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:02:42,322 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:02:42,322 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:01:55" (3/4) ... [2024-11-24 01:02:42,325 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 01:02:42,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-24 01:02:42,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-24 01:02:42,336 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-24 01:02:42,336 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-24 01:02:42,336 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-24 01:02:42,336 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-24 01:02:42,336 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-24 01:02:42,336 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-24 01:02:42,336 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-24 01:02:42,348 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-24 01:02:42,348 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-24 01:02:42,349 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-24 01:02:42,349 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 01:02:42,351 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 01:02:42,479 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 01:02:42,480 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 01:02:42,480 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:02:42,481 INFO L158 Benchmark]: Toolchain (without parser) took 48672.18ms. Allocated memory was 117.4MB in the beginning and 503.3MB in the end (delta: 385.9MB). Free memory was 93.6MB in the beginning and 240.3MB in the end (delta: -146.7MB). Peak memory consumption was 237.5MB. Max. memory is 16.1GB. [2024-11-24 01:02:42,481 INFO L158 Benchmark]: CDTParser took 1.73ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:02:42,482 INFO L158 Benchmark]: CACSL2BoogieTranslator took 572.22ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 74.3MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:02:42,483 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.01ms. Allocated memory is still 117.4MB. Free memory was 74.3MB in the beginning and 72.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:02:42,483 INFO L158 Benchmark]: Boogie Preprocessor took 60.59ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 70.6MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:02:42,483 INFO L158 Benchmark]: RCFGBuilder took 672.57ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 53.0MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:02:42,484 INFO L158 Benchmark]: TraceAbstraction took 47139.14ms. Allocated memory was 117.4MB in the beginning and 503.3MB in the end (delta: 385.9MB). Free memory was 52.7MB in the beginning and 248.3MB in the end (delta: -195.7MB). Peak memory consumption was 267.9MB. Max. memory is 16.1GB. [2024-11-24 01:02:42,484 INFO L158 Benchmark]: Witness Printer took 158.80ms. Allocated memory is still 503.3MB. Free memory was 248.3MB in the beginning and 240.3MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:02:42,488 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.73ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 572.22ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 74.3MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.01ms. Allocated memory is still 117.4MB. Free memory was 74.3MB in the beginning and 72.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 60.59ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 70.6MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 672.57ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 53.0MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 47139.14ms. Allocated memory was 117.4MB in the beginning and 503.3MB in the end (delta: 385.9MB). Free memory was 52.7MB in the beginning and 248.3MB in the end (delta: -195.7MB). Peak memory consumption was 267.9MB. Max. memory is 16.1GB. * Witness Printer took 158.80ms. Allocated memory is still 503.3MB. Free memory was 248.3MB in the beginning and 240.3MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] - GenericResultAtLocation [Line: 283]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [283] - GenericResultAtLocation [Line: 353]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [353] - GenericResultAtLocation [Line: 454]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [454] - GenericResultAtLocation [Line: 820]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [820] - GenericResultAtLocation [Line: 855]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [855] - GenericResultAtLocation [Line: 905]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [905] * 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: 54]: 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, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.5s, OverallIterations: 14, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4006 SdHoareTripleChecker+Valid, 6.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3982 mSDsluCounter, 8340 SdHoareTripleChecker+Invalid, 5.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6459 mSDsCounter, 1372 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5998 IncrementalHoareTripleChecker+Invalid, 7370 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1372 mSolverCounterUnsat, 1881 mSDtfsCounter, 5998 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2209 GetRequests, 1945 SyntacticMatches, 25 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2103 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1395occurred in iteration=13, InterpolantAutomatonStates: 169, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 545 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 10.8s InterpolantComputationTime, 2417 NumberOfCodeBlocks, 2417 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3368 ConstructedInterpolants, 0 QuantifiedInterpolants, 7947 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2830 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 2897/3611 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: ((((((((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 0)) || (((((2 == waterLevel) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (splverifierCounter == 0)) && (0 == systemActive))) || ((((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) && (waterLevel == 0)) && (pumpRunning == 1))) - InvariantResult [Line: 296]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-24 01:02:42,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e10fe0f-154c-41ae-b03f-399c708e6a66/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE