./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.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_592cd7aa-7a83-46cd-a666-313e48e35bcc/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592cd7aa-7a83-46cd-a666-313e48e35bcc/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_592cd7aa-7a83-46cd-a666-313e48e35bcc/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592cd7aa-7a83-46cd-a666-313e48e35bcc/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592cd7aa-7a83-46cd-a666-313e48e35bcc/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_592cd7aa-7a83-46cd-a666-313e48e35bcc/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 02d0ab19c61564f5abc0709934811896521a72f96ec1b9a0c41f20d28a391c3e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:16:05,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:16:05,080 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592cd7aa-7a83-46cd-a666-313e48e35bcc/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:16:05,085 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:16:05,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:16:05,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:16:05,106 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:16:05,106 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:16:05,106 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:16:05,106 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:16:05,107 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:16:05,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:16:05,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:16:05,107 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:16:05,107 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:16:05,107 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:16:05,107 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:16:05,107 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:16:05,108 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:16:05,108 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:16:05,108 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:16:05,108 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:16:05,108 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:16:05,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:16:05,108 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:16:05,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:16:05,108 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:16:05,108 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:16:05,108 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:16:05,108 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:16:05,109 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:16:05,109 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:16:05,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:16:05,109 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:16:05,109 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:16:05,109 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:16:05,109 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:16:05,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:16:05,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:16:05,109 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:16:05,109 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:16:05,109 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:16:05,110 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:16:05,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:16:05,110 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:16:05,110 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:16:05,110 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:16:05,110 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:16:05,110 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_592cd7aa-7a83-46cd-a666-313e48e35bcc/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 -> 02d0ab19c61564f5abc0709934811896521a72f96ec1b9a0c41f20d28a391c3e [2024-12-02 07:16:05,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:16:05,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:16:05,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:16:05,353 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:16:05,353 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:16:05,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592cd7aa-7a83-46cd-a666-313e48e35bcc/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c [2024-12-02 07:16:08,009 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592cd7aa-7a83-46cd-a666-313e48e35bcc/bin/uautomizer-verify-84ZbGMXZE1/data/d2d2d9339/a23544dd2f3849c48f23b702a20c6aa8/FLAG4a90e2362 [2024-12-02 07:16:08,477 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:16:08,478 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592cd7aa-7a83-46cd-a666-313e48e35bcc/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c [2024-12-02 07:16:08,531 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592cd7aa-7a83-46cd-a666-313e48e35bcc/bin/uautomizer-verify-84ZbGMXZE1/data/d2d2d9339/a23544dd2f3849c48f23b702a20c6aa8/FLAG4a90e2362 [2024-12-02 07:16:08,599 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592cd7aa-7a83-46cd-a666-313e48e35bcc/bin/uautomizer-verify-84ZbGMXZE1/data/d2d2d9339/a23544dd2f3849c48f23b702a20c6aa8 [2024-12-02 07:16:08,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:16:08,603 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:16:08,604 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:16:08,604 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:16:08,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:16:08,609 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,610 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@277ef134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:08, skipping insertion in model container [2024-12-02 07:16:08,610 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,725 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:16:08,896 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_592cd7aa-7a83-46cd-a666-313e48e35bcc/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c[1674,1687] [2024-12-02 07:16:09,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:16:09,786 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:16:09,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.bug1.i","-S") [42] [2024-12-02 07:16:09,796 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_592cd7aa-7a83-46cd-a666-313e48e35bcc/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c[1674,1687] [2024-12-02 07:16:10,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:16:10,609 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:16:10,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:10 WrapperNode [2024-12-02 07:16:10,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:16:10,611 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:16:10,611 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:16:10,611 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:16:10,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:10" (1/1) ... [2024-12-02 07:16:10,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:10" (1/1) ... [2024-12-02 07:16:12,079 INFO L138 Inliner]: procedures = 57, calls = 18490, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 40481 [2024-12-02 07:16:12,079 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:16:12,080 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:16:12,080 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:16:12,080 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:16:12,094 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:10" (1/1) ... [2024-12-02 07:16:12,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:10" (1/1) ... [2024-12-02 07:16:12,363 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:10" (1/1) ... [2024-12-02 07:16:12,610 INFO L175 MemorySlicer]: Split 14318 memory accesses to 17 slices as follows [2, 2, 2784, 3812, 2400, 1676, 1252, 852, 326, 429, 325, 8, 429, 4, 2, 7, 8]. 27 percent of accesses are in the largest equivalence class. The 652 initializations are split as follows [2, 0, 96, 96, 8, 8, 4, 4, 108, 108, 108, 0, 108, 0, 0, 2, 0]. The 661 writes are split as follows [0, 1, 96, 96, 8, 8, 4, 4, 109, 107, 109, 4, 107, 0, 1, 3, 4]. [2024-12-02 07:16:12,610 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:10" (1/1) ... [2024-12-02 07:16:12,611 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:10" (1/1) ... [2024-12-02 07:16:13,339 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:10" (1/1) ... [2024-12-02 07:16:13,361 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:10" (1/1) ... [2024-12-02 07:16:13,425 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:10" (1/1) ... [2024-12-02 07:16:13,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:10" (1/1) ... [2024-12-02 07:16:13,529 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:10" (1/1) ... [2024-12-02 07:16:13,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:16:13,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:16:13,667 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:16:13,668 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:16:13,669 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:10" (1/1) ... [2024-12-02 07:16:13,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:16:13,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592cd7aa-7a83-46cd-a666-313e48e35bcc/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:16:13,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592cd7aa-7a83-46cd-a666-313e48e35bcc/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:16:13,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592cd7aa-7a83-46cd-a666-313e48e35bcc/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:16:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:16:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2024-12-02 07:16:13,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2024-12-02 07:16:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2024-12-02 07:16:13,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2024-12-02 07:16:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 07:16:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2024-12-02 07:16:13,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2024-12-02 07:16:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2024-12-02 07:16:13,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2024-12-02 07:16:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2024-12-02 07:16:13,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2024-12-02 07:16:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 07:16:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 07:16:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 07:16:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 07:16:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 07:16:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 07:16:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 07:16:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 07:16:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 07:16:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 07:16:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 07:16:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 07:16:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 07:16:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 07:16:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 07:16:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-12-02 07:16:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-12-02 07:16:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2024-12-02 07:16:13,718 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2024-12-02 07:16:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2024-12-02 07:16:13,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2024-12-02 07:16:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-12-02 07:16:13,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-12-02 07:16:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-12-02 07:16:13,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-12-02 07:16:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 07:16:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2024-12-02 07:16:13,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2024-12-02 07:16:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 07:16:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 07:16:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 07:16:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 07:16:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 07:16:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 07:16:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 07:16:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 07:16:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 07:16:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 07:16:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 07:16:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 07:16:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 07:16:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 07:16:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 07:16:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-12-02 07:16:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-12-02 07:16:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2024-12-02 07:16:13,720 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2024-12-02 07:16:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:16:13,720 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:16:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:16:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 07:16:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 07:16:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 07:16:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 07:16:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 07:16:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 07:16:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 07:16:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 07:16:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 07:16:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 07:16:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 07:16:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 07:16:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 07:16:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 07:16:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 07:16:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 07:16:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:16:13,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:16:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2024-12-02 07:16:13,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2024-12-02 07:16:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2024-12-02 07:16:13,722 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2024-12-02 07:16:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2024-12-02 07:16:13,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2024-12-02 07:16:15,245 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:16:15,247 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:16:48,353 INFO L? ?]: Removed 272 outVars from TransFormulas that were not future-live. [2024-12-02 07:16:48,353 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:16:48,563 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:16:48,563 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 07:16:48,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:16:48 BoogieIcfgContainer [2024-12-02 07:16:48,564 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:16:48,567 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:16:48,567 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:16:48,572 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:16:48,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:16:08" (1/3) ... [2024-12-02 07:16:48,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c35d55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:16:48, skipping insertion in model container [2024-12-02 07:16:48,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:10" (2/3) ... [2024-12-02 07:16:48,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c35d55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:16:48, skipping insertion in model container [2024-12-02 07:16:48,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:16:48" (3/3) ... [2024-12-02 07:16:48,575 INFO L128 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M4-2.c [2024-12-02 07:16:48,590 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:16:48,593 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekcba_nxt.1.M4-2.c that has 16 procedures, 12014 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:16:48,888 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:16:48,897 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;@6fe7bc1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:16:48,897 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:16:48,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 12014 states, 7879 states have (on average 1.3195837035156746) internal successors, (10397), 7992 states have internal predecessors, (10397), 4118 states have call successors, (4118), 15 states have call predecessors, (4118), 15 states have return successors, (4118), 4116 states have call predecessors, (4118), 4118 states have call successors, (4118) [2024-12-02 07:16:49,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4617 [2024-12-02 07:16:49,458 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:16:49,461 INFO L218 NwaCegarLoop]: trace histogram [337, 337, 337, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1] [2024-12-02 07:16:49,462 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:16:49,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:16:49,468 INFO L85 PathProgramCache]: Analyzing trace with hash -877292869, now seen corresponding path program 1 times [2024-12-02 07:16:49,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:16:49,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880701345] [2024-12-02 07:16:49,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:16:49,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:17:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:17:07,492 INFO L134 CoverageAnalysis]: Checked inductivity of 226464 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 225792 trivial. 0 not checked. [2024-12-02 07:17:07,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:17:07,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880701345] [2024-12-02 07:17:07,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880701345] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:17:07,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780409160] [2024-12-02 07:17:07,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:17:07,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:17:07,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592cd7aa-7a83-46cd-a666-313e48e35bcc/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:17:07,498 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592cd7aa-7a83-46cd-a666-313e48e35bcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:17:07,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592cd7aa-7a83-46cd-a666-313e48e35bcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:17:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:17:22,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 13978 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:17:22,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:17:22,631 INFO L134 CoverageAnalysis]: Checked inductivity of 226464 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 225792 trivial. 0 not checked. [2024-12-02 07:17:22,631 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:17:22,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780409160] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:17:22,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:17:22,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 07:17:22,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866245393] [2024-12-02 07:17:22,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:17:22,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:17:22,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:17:22,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:17:22,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:17:22,679 INFO L87 Difference]: Start difference. First operand has 12014 states, 7879 states have (on average 1.3195837035156746) internal successors, (10397), 7992 states have internal predecessors, (10397), 4118 states have call successors, (4118), 15 states have call predecessors, (4118), 15 states have return successors, (4118), 4116 states have call predecessors, (4118), 4118 states have call successors, (4118) Second operand has 2 states, 2 states have (on average 1468.0) internal successors, (2936), 2 states have internal predecessors, (2936), 2 states have call successors, (337), 2 states have call predecessors, (337), 1 states have return successors, (337), 1 states have call predecessors, (337), 2 states have call successors, (337) [2024-12-02 07:17:23,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:17:23,061 INFO L93 Difference]: Finished difference Result 24023 states and 41362 transitions. [2024-12-02 07:17:23,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:17:23,064 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1468.0) internal successors, (2936), 2 states have internal predecessors, (2936), 2 states have call successors, (337), 2 states have call predecessors, (337), 1 states have return successors, (337), 1 states have call predecessors, (337), 2 states have call successors, (337) Word has length 4616 [2024-12-02 07:17:23,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:17:23,140 INFO L225 Difference]: With dead ends: 24023 [2024-12-02 07:17:23,140 INFO L226 Difference]: Without dead ends: 12008 [2024-12-02 07:17:23,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4617 GetRequests, 4617 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 07:17:23,197 INFO L435 NwaCegarLoop]: 18630 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, 18630 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 07:17:23,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18630 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:17:23,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12008 states. [2024-12-02 07:17:30,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12008 to 12008. [2024-12-02 07:17:30,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12008 states, 7874 states have (on average 1.3191516383032766) internal successors, (10387), 7986 states have internal predecessors, (10387), 4118 states have call successors, (4118), 15 states have call predecessors, (4118), 15 states have return successors, (4118), 4116 states have call predecessors, (4118), 4118 states have call successors, (4118) [2024-12-02 07:17:30,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12008 states to 12008 states and 18623 transitions. [2024-12-02 07:17:30,171 INFO L78 Accepts]: Start accepts. Automaton has 12008 states and 18623 transitions. Word has length 4616 [2024-12-02 07:17:30,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:17:30,173 INFO L471 AbstractCegarLoop]: Abstraction has 12008 states and 18623 transitions. [2024-12-02 07:17:30,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1468.0) internal successors, (2936), 2 states have internal predecessors, (2936), 2 states have call successors, (337), 2 states have call predecessors, (337), 1 states have return successors, (337), 1 states have call predecessors, (337), 2 states have call successors, (337) [2024-12-02 07:17:30,175 INFO L276 IsEmpty]: Start isEmpty. Operand 12008 states and 18623 transitions. [2024-12-02 07:17:30,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4617 [2024-12-02 07:17:30,376 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:17:30,378 INFO L218 NwaCegarLoop]: trace histogram [337, 337, 337, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1] [2024-12-02 07:17:30,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592cd7aa-7a83-46cd-a666-313e48e35bcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:17:30,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592cd7aa-7a83-46cd-a666-313e48e35bcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:17:30,579 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:17:30,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:17:30,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1365387983, now seen corresponding path program 1 times [2024-12-02 07:17:30,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:17:30,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976243803] [2024-12-02 07:17:30,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:17:30,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms