./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1 --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 df3faf2d1bbcaed92e1c2eddcb5ae1d2459730e99808e363d537a0bc5d54e347 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:41:05,339 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:41:05,403 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 10:41:05,409 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:41:05,410 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:41:05,433 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:41:05,434 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:41:05,434 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:41:05,434 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:41:05,434 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:41:05,435 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:41:05,435 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:41:05,435 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:41:05,435 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:41:05,435 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:41:05,436 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:41:05,436 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:41:05,436 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:41:05,436 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:41:05,436 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:41:05,436 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:41:05,436 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:41:05,436 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:41:05,436 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:41:05,437 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:41:05,437 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:41:05,437 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:41:05,437 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:41:05,437 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:41:05,437 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:41:05,437 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:41:05,437 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:41:05,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:41:05,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:41:05,438 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:41:05,438 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:41:05,438 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:41:05,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:41:05,438 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:41:05,438 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:41:05,438 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:41:05,439 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:41:05,439 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:41:05,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:41:05,439 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:41:05,439 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:41:05,439 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:41:05,439 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:41:05,439 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_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1 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 -> df3faf2d1bbcaed92e1c2eddcb5ae1d2459730e99808e363d537a0bc5d54e347 [2024-12-02 10:41:05,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:41:05,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:41:05,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:41:05,694 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:41:05,694 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:41:05,695 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c [2024-12-02 10:41:08,967 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/data/9c9c1035a/a82b489dcb6742c39122b95ce72a3d94/FLAGf21749863 [2024-12-02 10:41:09,227 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:41:09,228 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c [2024-12-02 10:41:09,243 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/data/9c9c1035a/a82b489dcb6742c39122b95ce72a3d94/FLAGf21749863 [2024-12-02 10:41:09,259 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/data/9c9c1035a/a82b489dcb6742c39122b95ce72a3d94 [2024-12-02 10:41:09,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:41:09,263 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:41:09,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:41:09,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:41:09,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:41:09,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:41:09" (1/1) ... [2024-12-02 10:41:09,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57de3282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:41:09, skipping insertion in model container [2024-12-02 10:41:09,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:41:09" (1/1) ... [2024-12-02 10:41:09,303 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:41:09,441 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_bfa78459-3e9f-425c-812a-5b1cf40f1d83/sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c[1605,1618] [2024-12-02 10:41:09,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:41:09,581 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:41:09,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-12-02 10:41:09,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] [2024-12-02 10:41:09,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] [2024-12-02 10:41:09,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [304] [2024-12-02 10:41:09,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [405] [2024-12-02 10:41:09,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [472] [2024-12-02 10:41:09,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [522] [2024-12-02 10:41:09,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [888] [2024-12-02 10:41:09,595 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_bfa78459-3e9f-425c-812a-5b1cf40f1d83/sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c[1605,1618] [2024-12-02 10:41:09,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:41:09,673 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:41:09,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:41:09 WrapperNode [2024-12-02 10:41:09,674 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:41:09,675 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:41:09,675 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:41:09,675 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:41:09,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:41:09" (1/1) ... [2024-12-02 10:41:09,690 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:41:09" (1/1) ... [2024-12-02 10:41:09,710 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 205 [2024-12-02 10:41:09,710 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:41:09,711 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:41:09,711 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:41:09,711 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:41:09,718 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:41:09" (1/1) ... [2024-12-02 10:41:09,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:41:09" (1/1) ... [2024-12-02 10:41:09,720 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:41:09" (1/1) ... [2024-12-02 10:41:09,732 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]. [2024-12-02 10:41:09,732 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:41:09" (1/1) ... [2024-12-02 10:41:09,732 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:41:09" (1/1) ... [2024-12-02 10:41:09,737 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:41:09" (1/1) ... [2024-12-02 10:41:09,738 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:41:09" (1/1) ... [2024-12-02 10:41:09,741 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:41:09" (1/1) ... [2024-12-02 10:41:09,743 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:41:09" (1/1) ... [2024-12-02 10:41:09,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:41:09" (1/1) ... [2024-12-02 10:41:09,745 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:41:09,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:41:09,746 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:41:09,746 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:41:09,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:41:09" (1/1) ... [2024-12-02 10:41:09,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:41:09,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:41:09,773 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:41:09,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:41:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:41:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-12-02 10:41:09,800 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-12-02 10:41:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 10:41:09,800 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 10:41:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 10:41:09,800 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 10:41:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-12-02 10:41:09,801 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-12-02 10:41:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-12-02 10:41:09,801 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-12-02 10:41:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-12-02 10:41:09,801 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-12-02 10:41:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-12-02 10:41:09,801 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-12-02 10:41:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:41:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-12-02 10:41:09,801 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-12-02 10:41:09,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:41:09,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:41:09,874 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:41:09,876 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:41:10,154 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2024-12-02 10:41:10,154 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:41:10,166 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:41:10,167 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 10:41:10,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:41:10 BoogieIcfgContainer [2024-12-02 10:41:10,167 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:41:10,170 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:41:10,170 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:41:10,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:41:10,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:41:09" (1/3) ... [2024-12-02 10:41:10,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e5d140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:41:10, skipping insertion in model container [2024-12-02 10:41:10,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:41:09" (2/3) ... [2024-12-02 10:41:10,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e5d140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:41:10, skipping insertion in model container [2024-12-02 10:41:10,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:41:10" (3/3) ... [2024-12-02 10:41:10,177 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product39.cil.c [2024-12-02 10:41:10,191 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:41:10,192 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec5_product39.cil.c that has 9 procedures, 95 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-12-02 10:41:10,249 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:41:10,261 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;@569cdd98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:41:10,262 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:41:10,265 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 71 states have (on average 1.380281690140845) internal successors, (98), 80 states have internal predecessors, (98), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 10:41:10,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-12-02 10:41:10,274 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:41:10,275 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] [2024-12-02 10:41:10,275 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:41:10,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:41:10,280 INFO L85 PathProgramCache]: Analyzing trace with hash 2048016070, now seen corresponding path program 1 times [2024-12-02 10:41:10,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:41:10,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468720021] [2024-12-02 10:41:10,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:10,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:41:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:10,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:41:10,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:41:10,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468720021] [2024-12-02 10:41:10,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468720021] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:41:10,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:41:10,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:41:10,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6666100] [2024-12-02 10:41:10,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:41:10,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 10:41:10,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:41:10,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 10:41:10,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:41:10,526 INFO L87 Difference]: Start difference. First operand has 95 states, 71 states have (on average 1.380281690140845) internal successors, (98), 80 states have internal predecessors, (98), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 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) [2024-12-02 10:41:10,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:41:10,558 INFO L93 Difference]: Finished difference Result 181 states and 246 transitions. [2024-12-02 10:41:10,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 10:41:10,560 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 [2024-12-02 10:41:10,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:41:10,569 INFO L225 Difference]: With dead ends: 181 [2024-12-02 10:41:10,570 INFO L226 Difference]: Without dead ends: 86 [2024-12-02 10:41:10,573 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 [2024-12-02 10:41:10,577 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:41:10,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:41:10,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-12-02 10:41:10,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-12-02 10:41:10,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 72 states have internal predecessors, (84), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 10:41:10,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2024-12-02 10:41:10,618 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 32 [2024-12-02 10:41:10,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:41:10,618 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2024-12-02 10:41:10,619 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) [2024-12-02 10:41:10,619 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2024-12-02 10:41:10,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-12-02 10:41:10,621 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:41:10,622 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] [2024-12-02 10:41:10,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:41:10,622 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:41:10,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:41:10,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1645975552, now seen corresponding path program 1 times [2024-12-02 10:41:10,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:41:10,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376746639] [2024-12-02 10:41:10,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:10,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:41:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:10,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:41:10,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:41:10,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376746639] [2024-12-02 10:41:10,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376746639] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:41:10,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:41:10,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:41:10,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937228471] [2024-12-02 10:41:10,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:41:10,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:41:10,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:41:10,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:41:10,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:41:10,750 INFO L87 Difference]: Start difference. First operand 86 states and 111 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) [2024-12-02 10:41:10,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:41:10,770 INFO L93 Difference]: Finished difference Result 135 states and 173 transitions. [2024-12-02 10:41:10,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:41:10,771 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 [2024-12-02 10:41:10,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:41:10,772 INFO L225 Difference]: With dead ends: 135 [2024-12-02 10:41:10,773 INFO L226 Difference]: Without dead ends: 78 [2024-12-02 10:41:10,773 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 [2024-12-02 10:41:10,774 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 16 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 178 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 [2024-12-02 10:41:10,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 178 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:41:10,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-12-02 10:41:10,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-12-02 10:41:10,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 67 states have internal predecessors, (78), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 10:41:10,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2024-12-02 10:41:10,786 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 32 [2024-12-02 10:41:10,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:41:10,786 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2024-12-02 10:41:10,787 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) [2024-12-02 10:41:10,787 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2024-12-02 10:41:10,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-12-02 10:41:10,788 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:41:10,788 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] [2024-12-02 10:41:10,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:41:10,789 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:41:10,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:41:10,790 INFO L85 PathProgramCache]: Analyzing trace with hash 611899277, now seen corresponding path program 1 times [2024-12-02 10:41:10,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:41:10,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241847587] [2024-12-02 10:41:10,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:10,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:41:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:10,905 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:41:10,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:41:10,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241847587] [2024-12-02 10:41:10,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241847587] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:41:10,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:41:10,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:41:10,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909676074] [2024-12-02 10:41:10,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:41:10,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:41:10,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:41:10,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:41:10,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:41:10,907 INFO L87 Difference]: Start difference. First operand 78 states and 100 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) [2024-12-02 10:41:10,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:41:10,940 INFO L93 Difference]: Finished difference Result 217 states and 284 transitions. [2024-12-02 10:41:10,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:41:10,941 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 [2024-12-02 10:41:10,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:41:10,943 INFO L225 Difference]: With dead ends: 217 [2024-12-02 10:41:10,943 INFO L226 Difference]: Without dead ends: 147 [2024-12-02 10:41:10,943 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 [2024-12-02 10:41:10,944 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 76 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 204 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 [2024-12-02 10:41:10,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 204 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:41:10,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-12-02 10:41:10,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 144. [2024-12-02 10:41:10,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 107 states have (on average 1.3457943925233644) internal successors, (144), 122 states have internal predecessors, (144), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (22), 15 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 10:41:10,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 188 transitions. [2024-12-02 10:41:10,966 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 188 transitions. Word has length 36 [2024-12-02 10:41:10,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:41:10,967 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 188 transitions. [2024-12-02 10:41:10,967 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) [2024-12-02 10:41:10,967 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 188 transitions. [2024-12-02 10:41:10,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 10:41:10,969 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:41:10,969 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] [2024-12-02 10:41:10,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:41:10,969 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:41:10,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:41:10,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1327576829, now seen corresponding path program 1 times [2024-12-02 10:41:10,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:41:10,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527199913] [2024-12-02 10:41:10,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:10,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:41:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:11,108 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 10:41:11,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:41:11,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527199913] [2024-12-02 10:41:11,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527199913] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:41:11,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:41:11,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:41:11,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964745440] [2024-12-02 10:41:11,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:41:11,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:41:11,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:41:11,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:41:11,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:41:11,111 INFO L87 Difference]: Start difference. First operand 144 states and 188 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) [2024-12-02 10:41:11,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:41:11,299 INFO L93 Difference]: Finished difference Result 368 states and 493 transitions. [2024-12-02 10:41:11,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:41:11,299 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 [2024-12-02 10:41:11,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:41:11,302 INFO L225 Difference]: With dead ends: 368 [2024-12-02 10:41:11,303 INFO L226 Difference]: Without dead ends: 232 [2024-12-02 10:41:11,304 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 [2024-12-02 10:41:11,305 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 70 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:41:11,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 427 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:41:11,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-12-02 10:41:11,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 231. [2024-12-02 10:41:11,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 172 states have (on average 1.302325581395349) internal successors, (224), 187 states have internal predecessors, (224), 32 states have call successors, (32), 26 states have call predecessors, (32), 26 states have return successors, (40), 29 states have call predecessors, (40), 32 states have call successors, (40) [2024-12-02 10:41:11,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 296 transitions. [2024-12-02 10:41:11,359 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 296 transitions. Word has length 40 [2024-12-02 10:41:11,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:41:11,359 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 296 transitions. [2024-12-02 10:41:11,360 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) [2024-12-02 10:41:11,360 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 296 transitions. [2024-12-02 10:41:11,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-02 10:41:11,362 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:41:11,362 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] [2024-12-02 10:41:11,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:41:11,362 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:41:11,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:41:11,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1230294890, now seen corresponding path program 1 times [2024-12-02 10:41:11,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:41:11,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778638473] [2024-12-02 10:41:11,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:11,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:41:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:11,466 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:41:11,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:41:11,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778638473] [2024-12-02 10:41:11,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778638473] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:41:11,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:41:11,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:41:11,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376384984] [2024-12-02 10:41:11,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:41:11,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:41:11,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:41:11,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:41:11,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:41:11,468 INFO L87 Difference]: Start difference. First operand 231 states and 296 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:41:11,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:41:11,510 INFO L93 Difference]: Finished difference Result 460 states and 600 transitions. [2024-12-02 10:41:11,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:41:11,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2024-12-02 10:41:11,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:41:11,514 INFO L225 Difference]: With dead ends: 460 [2024-12-02 10:41:11,514 INFO L226 Difference]: Without dead ends: 237 [2024-12-02 10:41:11,515 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 [2024-12-02 10:41:11,516 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 382 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 [2024-12-02 10:41:11,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 382 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:41:11,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-12-02 10:41:11,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2024-12-02 10:41:11,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 178 states have (on average 1.2921348314606742) internal successors, (230), 193 states have internal predecessors, (230), 32 states have call successors, (32), 26 states have call predecessors, (32), 26 states have return successors, (40), 29 states have call predecessors, (40), 32 states have call successors, (40) [2024-12-02 10:41:11,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 302 transitions. [2024-12-02 10:41:11,543 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 302 transitions. Word has length 50 [2024-12-02 10:41:11,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:41:11,544 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 302 transitions. [2024-12-02 10:41:11,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:41:11,544 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 302 transitions. [2024-12-02 10:41:11,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-02 10:41:11,546 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:41:11,546 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] [2024-12-02 10:41:11,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:41:11,546 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:41:11,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:41:11,547 INFO L85 PathProgramCache]: Analyzing trace with hash -458648852, now seen corresponding path program 1 times [2024-12-02 10:41:11,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:41:11,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628040369] [2024-12-02 10:41:11,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:11,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:41:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:11,652 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:41:11,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:41:11,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628040369] [2024-12-02 10:41:11,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628040369] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:41:11,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:41:11,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:41:11,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364137439] [2024-12-02 10:41:11,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:41:11,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:41:11,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:41:11,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:41:11,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:41:11,655 INFO L87 Difference]: Start difference. First operand 237 states and 302 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 10:41:11,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:41:11,718 INFO L93 Difference]: Finished difference Result 474 states and 621 transitions. [2024-12-02 10:41:11,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:41:11,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 50 [2024-12-02 10:41:11,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:41:11,722 INFO L225 Difference]: With dead ends: 474 [2024-12-02 10:41:11,722 INFO L226 Difference]: Without dead ends: 245 [2024-12-02 10:41:11,723 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 [2024-12-02 10:41:11,724 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 78 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 396 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 [2024-12-02 10:41:11,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 396 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:41:11,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-12-02 10:41:11,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 241. [2024-12-02 10:41:11,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 182 states have (on average 1.2857142857142858) internal successors, (234), 197 states have internal predecessors, (234), 32 states have call successors, (32), 26 states have call predecessors, (32), 26 states have return successors, (40), 29 states have call predecessors, (40), 32 states have call successors, (40) [2024-12-02 10:41:11,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 306 transitions. [2024-12-02 10:41:11,745 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 306 transitions. Word has length 50 [2024-12-02 10:41:11,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:41:11,745 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 306 transitions. [2024-12-02 10:41:11,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 10:41:11,746 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 306 transitions. [2024-12-02 10:41:11,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-02 10:41:11,746 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:41:11,746 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] [2024-12-02 10:41:11,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:41:11,747 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:41:11,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:41:11,747 INFO L85 PathProgramCache]: Analyzing trace with hash -35947026, now seen corresponding path program 1 times [2024-12-02 10:41:11,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:41:11,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152668733] [2024-12-02 10:41:11,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:11,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:41:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:11,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:41:11,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:41:11,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152668733] [2024-12-02 10:41:11,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152668733] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:41:11,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:41:11,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:41:11,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732206791] [2024-12-02 10:41:11,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:41:11,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:41:11,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:41:11,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:41:11,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:41:11,847 INFO L87 Difference]: Start difference. First operand 241 states and 306 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:41:12,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:41:12,028 INFO L93 Difference]: Finished difference Result 796 states and 1042 transitions. [2024-12-02 10:41:12,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:41:12,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2024-12-02 10:41:12,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:41:12,035 INFO L225 Difference]: With dead ends: 796 [2024-12-02 10:41:12,035 INFO L226 Difference]: Without dead ends: 563 [2024-12-02 10:41:12,037 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 [2024-12-02 10:41:12,038 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 130 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:41:12,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 323 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:41:12,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-12-02 10:41:12,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 551. [2024-12-02 10:41:12,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 414 states have (on average 1.2584541062801933) internal successors, (521), 443 states have internal predecessors, (521), 74 states have call successors, (74), 60 states have call predecessors, (74), 62 states have return successors, (110), 70 states have call predecessors, (110), 74 states have call successors, (110) [2024-12-02 10:41:12,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 705 transitions. [2024-12-02 10:41:12,124 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 705 transitions. Word has length 50 [2024-12-02 10:41:12,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:41:12,124 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 705 transitions. [2024-12-02 10:41:12,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:41:12,125 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 705 transitions. [2024-12-02 10:41:12,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-12-02 10:41:12,127 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:41:12,127 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] [2024-12-02 10:41:12,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:41:12,127 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:41:12,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:41:12,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1219774572, now seen corresponding path program 1 times [2024-12-02 10:41:12,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:41:12,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068474601] [2024-12-02 10:41:12,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:12,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:41:12,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:12,419 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:41:12,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:41:12,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068474601] [2024-12-02 10:41:12,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068474601] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:41:12,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:41:12,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:41:12,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115942505] [2024-12-02 10:41:12,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:41:12,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:41:12,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:41:12,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:41:12,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:41:12,421 INFO L87 Difference]: Start difference. First operand 551 states and 705 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 10:41:13,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:41:13,062 INFO L93 Difference]: Finished difference Result 1641 states and 2179 transitions. [2024-12-02 10:41:13,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:41:13,063 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (5), 3 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 54 [2024-12-02 10:41:13,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:41:13,072 INFO L225 Difference]: With dead ends: 1641 [2024-12-02 10:41:13,072 INFO L226 Difference]: Without dead ends: 1199 [2024-12-02 10:41:13,075 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 [2024-12-02 10:41:13,076 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 329 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:41:13,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 582 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:41:13,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2024-12-02 10:41:13,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1076. [2024-12-02 10:41:13,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1076 states, 805 states have (on average 1.2347826086956522) internal successors, (994), 863 states have internal predecessors, (994), 143 states have call successors, (143), 107 states have call predecessors, (143), 127 states have return successors, (227), 140 states have call predecessors, (227), 143 states have call successors, (227) [2024-12-02 10:41:13,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1364 transitions. [2024-12-02 10:41:13,206 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1364 transitions. Word has length 54 [2024-12-02 10:41:13,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:41:13,207 INFO L471 AbstractCegarLoop]: Abstraction has 1076 states and 1364 transitions. [2024-12-02 10:41:13,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 10:41:13,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1364 transitions. [2024-12-02 10:41:13,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 10:41:13,209 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:41:13,210 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] [2024-12-02 10:41:13,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 10:41:13,210 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:41:13,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:41:13,211 INFO L85 PathProgramCache]: Analyzing trace with hash -935402970, now seen corresponding path program 1 times [2024-12-02 10:41:13,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:41:13,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835781612] [2024-12-02 10:41:13,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:13,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:41:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:13,275 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 10:41:13,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:41:13,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835781612] [2024-12-02 10:41:13,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835781612] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:41:13,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:41:13,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:41:13,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417789498] [2024-12-02 10:41:13,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:41:13,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:41:13,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:41:13,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:41:13,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:41:13,277 INFO L87 Difference]: Start difference. First operand 1076 states and 1364 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2024-12-02 10:41:13,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:41:13,428 INFO L93 Difference]: Finished difference Result 1274 states and 1611 transitions. [2024-12-02 10:41:13,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:41:13,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 83 [2024-12-02 10:41:13,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:41:13,433 INFO L225 Difference]: With dead ends: 1274 [2024-12-02 10:41:13,433 INFO L226 Difference]: Without dead ends: 527 [2024-12-02 10:41:13,436 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 [2024-12-02 10:41:13,436 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 131 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:41:13,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 249 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:41:13,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-12-02 10:41:13,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2024-12-02 10:41:13,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 395 states have (on average 1.1974683544303797) internal successors, (473), 421 states have internal predecessors, (473), 68 states have call successors, (68), 53 states have call predecessors, (68), 63 states have return successors, (110), 68 states have call predecessors, (110), 68 states have call successors, (110) [2024-12-02 10:41:13,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 651 transitions. [2024-12-02 10:41:13,499 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 651 transitions. Word has length 83 [2024-12-02 10:41:13,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:41:13,499 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 651 transitions. [2024-12-02 10:41:13,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2024-12-02 10:41:13,499 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 651 transitions. [2024-12-02 10:41:13,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 10:41:13,501 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:41:13,501 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:41:13,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 10:41:13,501 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:41:13,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:41:13,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1755160345, now seen corresponding path program 1 times [2024-12-02 10:41:13,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:41:13,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135377681] [2024-12-02 10:41:13,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:13,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:41:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:13,677 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 10:41:13,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:41:13,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135377681] [2024-12-02 10:41:13,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135377681] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:41:13,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529073394] [2024-12-02 10:41:13,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:13,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:41:13,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:41:13,680 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:41:13,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:41:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:13,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 10:41:13,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:41:14,000 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:41:14,000 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:41:14,231 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 10:41:14,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529073394] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:41:14,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:41:14,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2024-12-02 10:41:14,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640812022] [2024-12-02 10:41:14,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:41:14,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 10:41:14,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:41:14,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 10:41:14,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:41:14,234 INFO L87 Difference]: Start difference. First operand 527 states and 651 transitions. Second operand has 15 states, 15 states have (on average 8.866666666666667) internal successors, (133), 13 states have internal predecessors, (133), 7 states have call successors, (20), 4 states have call predecessors, (20), 8 states have return successors, (18), 9 states have call predecessors, (18), 7 states have call successors, (18) [2024-12-02 10:41:14,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:41:14,826 INFO L93 Difference]: Finished difference Result 1198 states and 1544 transitions. [2024-12-02 10:41:14,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 10:41:14,827 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.866666666666667) internal successors, (133), 13 states have internal predecessors, (133), 7 states have call successors, (20), 4 states have call predecessors, (20), 8 states have return successors, (18), 9 states have call predecessors, (18), 7 states have call successors, (18) Word has length 92 [2024-12-02 10:41:14,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:41:14,833 INFO L225 Difference]: With dead ends: 1198 [2024-12-02 10:41:14,833 INFO L226 Difference]: Without dead ends: 726 [2024-12-02 10:41:14,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 181 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2024-12-02 10:41:14,837 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 294 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:41:14,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1190 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:41:14,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-12-02 10:41:14,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 630. [2024-12-02 10:41:14,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 467 states have (on average 1.1884368308351179) internal successors, (555), 502 states have internal predecessors, (555), 83 states have call successors, (83), 71 states have call predecessors, (83), 79 states have return successors, (119), 81 states have call predecessors, (119), 83 states have call successors, (119) [2024-12-02 10:41:14,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 757 transitions. [2024-12-02 10:41:14,912 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 757 transitions. Word has length 92 [2024-12-02 10:41:14,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:41:14,912 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 757 transitions. [2024-12-02 10:41:14,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.866666666666667) internal successors, (133), 13 states have internal predecessors, (133), 7 states have call successors, (20), 4 states have call predecessors, (20), 8 states have return successors, (18), 9 states have call predecessors, (18), 7 states have call successors, (18) [2024-12-02 10:41:14,913 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 757 transitions. [2024-12-02 10:41:14,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 10:41:14,917 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:41:14,917 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:41:14,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:41:15,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 10:41:15,118 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:41:15,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:41:15,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1876344015, now seen corresponding path program 1 times [2024-12-02 10:41:15,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:41:15,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983628068] [2024-12-02 10:41:15,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:15,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:41:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:15,501 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 84 proven. 29 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-12-02 10:41:15,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:41:15,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983628068] [2024-12-02 10:41:15,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983628068] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:41:15,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341344002] [2024-12-02 10:41:15,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:15,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:41:15,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:41:15,504 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:41:15,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:41:15,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:15,650 INFO L256 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 10:41:15,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:41:15,900 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 134 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 10:41:15,901 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:41:16,456 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 74 proven. 41 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-12-02 10:41:16,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341344002] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:41:16,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:41:16,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2024-12-02 10:41:16,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570872783] [2024-12-02 10:41:16,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:41:16,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 10:41:16,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:41:16,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 10:41:16,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:41:16,459 INFO L87 Difference]: Start difference. First operand 630 states and 757 transitions. Second operand has 25 states, 25 states have (on average 8.16) internal successors, (204), 24 states have internal predecessors, (204), 11 states have call successors, (30), 6 states have call predecessors, (30), 10 states have return successors, (32), 10 states have call predecessors, (32), 11 states have call successors, (32) [2024-12-02 10:41:17,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:41:17,246 INFO L93 Difference]: Finished difference Result 1380 states and 1723 transitions. [2024-12-02 10:41:17,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:41:17,247 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.16) internal successors, (204), 24 states have internal predecessors, (204), 11 states have call successors, (30), 6 states have call predecessors, (30), 10 states have return successors, (32), 10 states have call predecessors, (32), 11 states have call successors, (32) Word has length 167 [2024-12-02 10:41:17,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:41:17,254 INFO L225 Difference]: With dead ends: 1380 [2024-12-02 10:41:17,254 INFO L226 Difference]: Without dead ends: 758 [2024-12-02 10:41:17,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 321 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=275, Invalid=847, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 10:41:17,258 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 299 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:41:17,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 732 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:41:17,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-12-02 10:41:17,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 688. [2024-12-02 10:41:17,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 512 states have (on average 1.16015625) internal successors, (594), 544 states have internal predecessors, (594), 94 states have call successors, (94), 82 states have call predecessors, (94), 81 states have return successors, (117), 84 states have call predecessors, (117), 94 states have call successors, (117) [2024-12-02 10:41:17,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 805 transitions. [2024-12-02 10:41:17,340 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 805 transitions. Word has length 167 [2024-12-02 10:41:17,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:41:17,340 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 805 transitions. [2024-12-02 10:41:17,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.16) internal successors, (204), 24 states have internal predecessors, (204), 11 states have call successors, (30), 6 states have call predecessors, (30), 10 states have return successors, (32), 10 states have call predecessors, (32), 11 states have call successors, (32) [2024-12-02 10:41:17,341 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 805 transitions. [2024-12-02 10:41:17,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-12-02 10:41:17,344 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:41:17,344 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:41:17,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:41:17,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 10:41:17,545 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:41:17,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:41:17,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1474021187, now seen corresponding path program 1 times [2024-12-02 10:41:17,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:41:17,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309862568] [2024-12-02 10:41:17,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:17,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:41:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:17,877 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 85 proven. 63 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-12-02 10:41:17,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:41:17,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309862568] [2024-12-02 10:41:17,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309862568] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:41:17,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213365772] [2024-12-02 10:41:17,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:17,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:41:17,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:41:17,880 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:41:17,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:41:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:18,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 10:41:18,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:41:18,232 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 170 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 10:41:18,232 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:41:18,677 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 94 proven. 53 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-12-02 10:41:18,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213365772] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:41:18,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:41:18,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2024-12-02 10:41:18,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263519049] [2024-12-02 10:41:18,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:41:18,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 10:41:18,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:41:18,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 10:41:18,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:41:18,680 INFO L87 Difference]: Start difference. First operand 688 states and 805 transitions. Second operand has 23 states, 23 states have (on average 9.652173913043478) internal successors, (222), 20 states have internal predecessors, (222), 9 states have call successors, (35), 5 states have call predecessors, (35), 14 states have return successors, (35), 12 states have call predecessors, (35), 9 states have call successors, (35) [2024-12-02 10:41:19,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:41:19,379 INFO L93 Difference]: Finished difference Result 1352 states and 1603 transitions. [2024-12-02 10:41:19,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 10:41:19,380 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.652173913043478) internal successors, (222), 20 states have internal predecessors, (222), 9 states have call successors, (35), 5 states have call predecessors, (35), 14 states have return successors, (35), 12 states have call predecessors, (35), 9 states have call successors, (35) Word has length 179 [2024-12-02 10:41:19,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:41:19,385 INFO L225 Difference]: With dead ends: 1352 [2024-12-02 10:41:19,385 INFO L226 Difference]: Without dead ends: 719 [2024-12-02 10:41:19,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 354 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=299, Invalid=1107, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 10:41:19,388 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 373 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:41:19,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 776 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:41:19,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2024-12-02 10:41:19,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 703. [2024-12-02 10:41:19,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 522 states have (on average 1.1494252873563218) internal successors, (600), 554 states have internal predecessors, (600), 94 states have call successors, (94), 87 states have call predecessors, (94), 86 states have return successors, (117), 84 states have call predecessors, (117), 94 states have call successors, (117) [2024-12-02 10:41:19,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 811 transitions. [2024-12-02 10:41:19,471 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 811 transitions. Word has length 179 [2024-12-02 10:41:19,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:41:19,471 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 811 transitions. [2024-12-02 10:41:19,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.652173913043478) internal successors, (222), 20 states have internal predecessors, (222), 9 states have call successors, (35), 5 states have call predecessors, (35), 14 states have return successors, (35), 12 states have call predecessors, (35), 9 states have call successors, (35) [2024-12-02 10:41:19,472 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 811 transitions. [2024-12-02 10:41:19,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-12-02 10:41:19,475 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:41:19,475 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:41:19,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:41:19,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 10:41:19,676 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:41:19,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:41:19,676 INFO L85 PathProgramCache]: Analyzing trace with hash 73329008, now seen corresponding path program 1 times [2024-12-02 10:41:19,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:41:19,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384144296] [2024-12-02 10:41:19,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:19,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:41:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:19,865 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 96 proven. 10 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-12-02 10:41:19,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:41:19,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384144296] [2024-12-02 10:41:19,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384144296] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:41:19,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272743847] [2024-12-02 10:41:19,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:19,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:41:19,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:41:19,868 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:41:19,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:41:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:20,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 10:41:20,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:41:20,279 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 118 proven. 25 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-12-02 10:41:20,279 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:41:20,975 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 91 proven. 44 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-12-02 10:41:20,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272743847] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:41:20,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:41:20,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 13] total 21 [2024-12-02 10:41:20,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298868225] [2024-12-02 10:41:20,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:41:20,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 10:41:20,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:41:20,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 10:41:20,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2024-12-02 10:41:20,978 INFO L87 Difference]: Start difference. First operand 703 states and 811 transitions. Second operand has 21 states, 21 states have (on average 11.333333333333334) internal successors, (238), 20 states have internal predecessors, (238), 13 states have call successors, (41), 7 states have call predecessors, (41), 14 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-12-02 10:41:22,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:41:22,689 INFO L93 Difference]: Finished difference Result 2313 states and 2744 transitions. [2024-12-02 10:41:22,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-12-02 10:41:22,690 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), 13 states have call successors, (41), 7 states have call predecessors, (41), 14 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) Word has length 180 [2024-12-02 10:41:22,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:41:22,698 INFO L225 Difference]: With dead ends: 2313 [2024-12-02 10:41:22,699 INFO L226 Difference]: Without dead ends: 1618 [2024-12-02 10:41:22,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 362 SyntacticMatches, 7 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 933 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=899, Invalid=3007, Unknown=0, NotChecked=0, Total=3906 [2024-12-02 10:41:22,704 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 910 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 1741 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 1741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:41:22,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 1561 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 1741 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 10:41:22,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2024-12-02 10:41:22,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1410. [2024-12-02 10:41:22,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1063 states have (on average 1.1091251175917216) internal successors, (1179), 1109 states have internal predecessors, (1179), 181 states have call successors, (181), 171 states have call predecessors, (181), 165 states have return successors, (206), 164 states have call predecessors, (206), 181 states have call successors, (206) [2024-12-02 10:41:22,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 1566 transitions. [2024-12-02 10:41:22,816 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 1566 transitions. Word has length 180 [2024-12-02 10:41:22,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:41:22,816 INFO L471 AbstractCegarLoop]: Abstraction has 1410 states and 1566 transitions. [2024-12-02 10:41:22,817 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), 13 states have call successors, (41), 7 states have call predecessors, (41), 14 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-12-02 10:41:22,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 1566 transitions. [2024-12-02 10:41:22,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-12-02 10:41:22,821 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:41:22,821 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:41:22,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:41:23,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 10:41:23,022 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:41:23,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:41:23,022 INFO L85 PathProgramCache]: Analyzing trace with hash -2047208475, now seen corresponding path program 1 times [2024-12-02 10:41:23,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:41:23,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743583944] [2024-12-02 10:41:23,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:23,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:41:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:23,810 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 93 proven. 135 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-12-02 10:41:23,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:41:23,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743583944] [2024-12-02 10:41:23,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743583944] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:41:23,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359614850] [2024-12-02 10:41:23,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:41:23,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:41:23,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:41:23,813 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:41:23,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:41:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:41:23,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-02 10:41:24,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:41:24,373 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 134 proven. 87 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-12-02 10:41:24,373 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:41:25,267 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 87 proven. 134 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-12-02 10:41:25,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359614850] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:41:25,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:41:25,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 16] total 29 [2024-12-02 10:41:25,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676946233] [2024-12-02 10:41:25,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:41:25,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 10:41:25,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:41:25,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 10:41:25,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2024-12-02 10:41:25,269 INFO L87 Difference]: Start difference. First operand 1410 states and 1566 transitions. Second operand has 29 states, 29 states have (on average 10.10344827586207) internal successors, (293), 28 states have internal predecessors, (293), 18 states have call successors, (55), 11 states have call predecessors, (55), 20 states have return successors, (57), 18 states have call predecessors, (57), 18 states have call successors, (57) [2024-12-02 10:41:26,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:41:26,241 INFO L93 Difference]: Finished difference Result 2260 states and 2527 transitions. [2024-12-02 10:41:26,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 10:41:26,242 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.10344827586207) internal successors, (293), 28 states have internal predecessors, (293), 18 states have call successors, (55), 11 states have call predecessors, (55), 20 states have return successors, (57), 18 states have call predecessors, (57), 18 states have call successors, (57) Word has length 233 [2024-12-02 10:41:26,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:41:26,244 INFO L225 Difference]: With dead ends: 2260 [2024-12-02 10:41:26,244 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 10:41:26,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 455 SyntacticMatches, 9 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=459, Invalid=1611, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 10:41:26,248 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 563 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:41:26,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 1274 Invalid, 1588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 1348 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:41:26,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 10:41:26,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 10:41:26,249 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) [2024-12-02 10:41:26,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 10:41:26,251 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 233 [2024-12-02 10:41:26,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:41:26,251 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 10:41:26,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.10344827586207) internal successors, (293), 28 states have internal predecessors, (293), 18 states have call successors, (55), 11 states have call predecessors, (55), 20 states have return successors, (57), 18 states have call predecessors, (57), 18 states have call successors, (57) [2024-12-02 10:41:26,252 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 10:41:26,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 10:41:26,255 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 10:41:26,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-12-02 10:41:26,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 10:41:26,458 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:41:26,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 10:41:40,898 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 10:41:40,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:41:40 BoogieIcfgContainer [2024-12-02 10:41:40,912 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 10:41:40,913 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 10:41:40,913 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 10:41:40,913 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 10:41:40,914 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:41:10" (3/4) ... [2024-12-02 10:41:40,916 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 10:41:40,920 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-12-02 10:41:40,920 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-12-02 10:41:40,920 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-12-02 10:41:40,920 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-12-02 10:41:40,920 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-12-02 10:41:40,920 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-12-02 10:41:40,920 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-12-02 10:41:40,921 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-12-02 10:41:40,926 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-12-02 10:41:40,926 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-12-02 10:41:40,927 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 10:41:40,927 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 10:41:40,927 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 10:41:41,023 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 10:41:41,023 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 10:41:41,023 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 10:41:41,024 INFO L158 Benchmark]: Toolchain (without parser) took 31761.30ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 92.2MB in the beginning and 129.1MB in the end (delta: -36.9MB). Peak memory consumption was 186.9MB. Max. memory is 16.1GB. [2024-12-02 10:41:41,024 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:41:41,024 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.56ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 73.5MB in the end (delta: 18.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:41:41,025 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.23ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 71.4MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:41:41,025 INFO L158 Benchmark]: Boogie Preprocessor took 34.92ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 69.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:41:41,025 INFO L158 Benchmark]: RCFGBuilder took 421.27ms. Allocated memory is still 117.4MB. Free memory was 69.7MB in the beginning and 52.6MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 10:41:41,026 INFO L158 Benchmark]: TraceAbstraction took 30742.21ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 52.1MB in the beginning and 137.4MB in the end (delta: -85.3MB). Peak memory consumption was 173.5MB. Max. memory is 16.1GB. [2024-12-02 10:41:41,026 INFO L158 Benchmark]: Witness Printer took 110.34ms. Allocated memory is still 343.9MB. Free memory was 137.4MB in the beginning and 129.1MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:41:41,028 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 410.56ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 73.5MB in the end (delta: 18.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.23ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 71.4MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.92ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 69.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 421.27ms. Allocated memory is still 117.4MB. Free memory was 69.7MB in the beginning and 52.6MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 30742.21ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 52.1MB in the beginning and 137.4MB in the end (delta: -85.3MB). Peak memory consumption was 173.5MB. Max. memory is 16.1GB. * Witness Printer took 110.34ms. Allocated memory is still 343.9MB. Free memory was 137.4MB in the beginning and 129.1MB in the end (delta: 8.2MB). 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,"featureselect.i","") [58] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] - GenericResultAtLocation [Line: 304]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [304] - GenericResultAtLocation [Line: 405]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [405] - GenericResultAtLocation [Line: 472]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [472] - GenericResultAtLocation [Line: 522]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [522] - GenericResultAtLocation [Line: 888]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [888] * 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 9 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.2s, OverallIterations: 14, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3293 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3269 mSDsluCounter, 8394 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6533 mSDsCounter, 1072 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5344 IncrementalHoareTripleChecker+Invalid, 6416 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1072 mSolverCounterUnsat, 1861 mSDtfsCounter, 5344 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1954 GetRequests, 1698 SyntacticMatches, 24 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2065 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1410occurred in iteration=13, InterpolantAutomatonStates: 161, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 533 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 2129 NumberOfCodeBlocks, 2129 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 2956 ConstructedInterpolants, 0 QuantifiedInterpolants, 7246 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2529 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 2572/3239 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: 416]: Loop Invariant Derived loop invariant: ((((((((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 0)) || ((((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))) || ((((2 == waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) - InvariantResult [Line: 415]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-12-02 10:41:41,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa78459-3e9f-425c-812a-5b1cf40f1d83/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE