./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 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC/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_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 02d0ab19c61564f5abc0709934811896521a72f96ec1b9a0c41f20d28a391c3e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:50:56,601 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:50:56,733 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:50:56,744 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:50:56,744 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:50:56,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:50:56,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:50:56,795 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:50:56,796 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:50:56,796 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:50:56,797 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:50:56,798 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:50:56,799 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:50:56,799 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:50:56,799 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:50:56,799 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:50:56,799 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:50:56,799 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:50:56,799 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:50:56,800 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:50:56,800 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:50:56,800 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:50:56,800 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:50:56,801 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:50:56,801 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:50:56,801 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:50:56,801 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:50:56,801 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:50:56,802 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:50:56,802 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:50:56,802 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:50:56,802 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:50:56,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:50:56,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:50:56,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:50:56,804 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:50:56,804 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:50:56,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:50:56,804 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:50:56,804 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:50:56,804 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:50:56,805 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:50:56,805 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:50:56,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:50:56,805 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:50:56,805 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:50:56,805 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:50:56,805 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:50:56,805 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_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02d0ab19c61564f5abc0709934811896521a72f96ec1b9a0c41f20d28a391c3e [2024-11-24 00:50:57,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:50:57,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:50:57,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:50:57,229 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:50:57,230 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:50:57,232 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c [2024-11-24 00:51:00,402 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC/data/70f1b9c67/b88849bb76184bb88a883b081e8d8bcf/FLAG8df6710e9 [2024-11-24 00:51:01,192 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:51:01,194 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c [2024-11-24 00:51:01,276 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC/data/70f1b9c67/b88849bb76184bb88a883b081e8d8bcf/FLAG8df6710e9 [2024-11-24 00:51:01,301 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC/data/70f1b9c67/b88849bb76184bb88a883b081e8d8bcf [2024-11-24 00:51:01,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:51:01,308 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:51:01,311 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:51:01,312 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:51:01,318 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:51:01,320 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:51:01" (1/1) ... [2024-11-24 00:51:01,323 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1752d854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:51:01, skipping insertion in model container [2024-11-24 00:51:01,324 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:51:01" (1/1) ... [2024-11-24 00:51:01,531 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:51:01,811 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_26aef9c7-cf94-4c7f-ad56-270eed2d9056/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c[1674,1687] [2024-11-24 00:51:03,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:51:03,690 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:51:03,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.bug1.i","-S") [42] [2024-11-24 00:51:03,716 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_26aef9c7-cf94-4c7f-ad56-270eed2d9056/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c[1674,1687] [2024-11-24 00:51:04,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:51:04,951 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:51:04,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:51:04 WrapperNode [2024-11-24 00:51:04,953 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:51:04,954 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:51:04,954 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:51:04,955 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:51:04,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:51:04" (1/1) ... [2024-11-24 00:51:05,424 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:51:04" (1/1) ... [2024-11-24 00:51:07,306 INFO L138 Inliner]: procedures = 57, calls = 18490, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 40481 [2024-11-24 00:51:07,308 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:51:07,309 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:51:07,311 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:51:07,311 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:51:07,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:51:04" (1/1) ... [2024-11-24 00:51:07,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:51:04" (1/1) ... [2024-11-24 00:51:07,917 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:51:04" (1/1) ... [2024-11-24 00:51:08,193 INFO L175 MemorySlicer]: Split 14318 memory accesses to 17 slices as follows [2, 2784, 3812, 2400, 1676, 2, 1252, 4, 852, 326, 429, 325, 429, 2, 8, 7, 8]. 27 percent of accesses are in the largest equivalence class. The 652 initializations are split as follows [2, 96, 96, 8, 8, 0, 4, 0, 4, 108, 108, 108, 108, 0, 0, 2, 0]. The 661 writes are split as follows [0, 96, 96, 8, 8, 1, 4, 0, 4, 109, 107, 109, 107, 1, 4, 3, 4]. [2024-11-24 00:51:08,194 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:51:04" (1/1) ... [2024-11-24 00:51:08,194 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:51:04" (1/1) ... [2024-11-24 00:51:09,245 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:51:04" (1/1) ... [2024-11-24 00:51:09,300 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:51:04" (1/1) ... [2024-11-24 00:51:09,410 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:51:04" (1/1) ... [2024-11-24 00:51:09,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:51:04" (1/1) ... [2024-11-24 00:51:09,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:51:04" (1/1) ... [2024-11-24 00:51:10,125 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:51:10,126 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:51:10,127 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:51:10,127 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:51:10,129 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:51:04" (1/1) ... [2024-11-24 00:51:10,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:51:10,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:51:10,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:51:10,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:51:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:51:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2024-11-24 00:51:10,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2024-11-24 00:51:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2024-11-24 00:51:10,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2024-11-24 00:51:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 00:51:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2024-11-24 00:51:10,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2024-11-24 00:51:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2024-11-24 00:51:10,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2024-11-24 00:51:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2024-11-24 00:51:10,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2024-11-24 00:51:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:51:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:51:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 00:51:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 00:51:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 00:51:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 00:51:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 00:51:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 00:51:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-24 00:51:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-24 00:51:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-24 00:51:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-24 00:51:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-24 00:51:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-24 00:51:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-24 00:51:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-24 00:51:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-24 00:51:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2024-11-24 00:51:10,223 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2024-11-24 00:51:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2024-11-24 00:51:10,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2024-11-24 00:51:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-24 00:51:10,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-24 00:51:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-24 00:51:10,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-24 00:51:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:51:10,224 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2024-11-24 00:51:10,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2024-11-24 00:51:10,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:51:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:51:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 00:51:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 00:51:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 00:51:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 00:51:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 00:51:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 00:51:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-24 00:51:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-24 00:51:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-24 00:51:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-24 00:51:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-24 00:51:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-24 00:51:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-24 00:51:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-24 00:51:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-24 00:51:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2024-11-24 00:51:10,229 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2024-11-24 00:51:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:51:10,229 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:51:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:51:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:51:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:51:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:51:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 00:51:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 00:51:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 00:51:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 00:51:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 00:51:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-24 00:51:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-24 00:51:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-24 00:51:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-24 00:51:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-24 00:51:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-24 00:51:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-24 00:51:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-24 00:51:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:51:10,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:51:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2024-11-24 00:51:10,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2024-11-24 00:51:10,231 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2024-11-24 00:51:10,231 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2024-11-24 00:51:10,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2024-11-24 00:51:10,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2024-11-24 00:51:12,618 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:51:12,621 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:51:56,968 INFO L? ?]: Removed 272 outVars from TransFormulas that were not future-live. [2024-11-24 00:51:56,969 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:51:57,248 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:51:57,248 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 00:51:57,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:51:57 BoogieIcfgContainer [2024-11-24 00:51:57,249 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:51:57,254 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:51:57,255 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:51:57,261 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:51:57,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:51:01" (1/3) ... [2024-11-24 00:51:57,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cf4b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:51:57, skipping insertion in model container [2024-11-24 00:51:57,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:51:04" (2/3) ... [2024-11-24 00:51:57,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cf4b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:51:57, skipping insertion in model container [2024-11-24 00:51:57,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:51:57" (3/3) ... [2024-11-24 00:51:57,266 INFO L128 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M4-2.c [2024-11-24 00:51:57,286 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:51:57,289 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. [2024-11-24 00:51:57,767 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:51:57,783 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;@309bf04c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:51:57,783 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:51:57,826 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) [2024-11-24 00:51:58,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4617 [2024-11-24 00:51:58,611 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:51:58,615 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-24 00:51:58,619 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:51:58,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:51:58,631 INFO L85 PathProgramCache]: Analyzing trace with hash -877292869, now seen corresponding path program 1 times [2024-11-24 00:51:58,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:51:58,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842497507] [2024-11-24 00:51:58,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:51:58,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:52:16,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:52:23,144 INFO L134 CoverageAnalysis]: Checked inductivity of 226464 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 225792 trivial. 0 not checked. [2024-11-24 00:52:23,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:52:23,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842497507] [2024-11-24 00:52:23,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842497507] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:52:23,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492586912] [2024-11-24 00:52:23,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:23,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:52:23,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:52:23,157 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:52:23,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:52:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:52:44,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 13978 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:52:44,511 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:52:44,869 INFO L134 CoverageAnalysis]: Checked inductivity of 226464 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 225792 trivial. 0 not checked. [2024-11-24 00:52:44,869 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:52:44,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492586912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:52:44,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:52:44,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:52:44,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889643023] [2024-11-24 00:52:44,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:52:44,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:52:44,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:52:44,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:52:44,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:52:44,986 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) [2024-11-24 00:52:45,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:52:45,851 INFO L93 Difference]: Finished difference Result 24023 states and 41362 transitions. [2024-11-24 00:52:45,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:52:45,861 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 [2024-11-24 00:52:45,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:52:46,017 INFO L225 Difference]: With dead ends: 24023 [2024-11-24 00:52:46,017 INFO L226 Difference]: Without dead ends: 12008 [2024-11-24 00:52:46,119 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 [2024-11-24 00:52:46,123 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, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:52:46,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18630 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:52:46,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12008 states. [2024-11-24 00:52:59,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12008 to 12008. [2024-11-24 00:52:59,285 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) [2024-11-24 00:52:59,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12008 states to 12008 states and 18623 transitions. [2024-11-24 00:52:59,406 INFO L78 Accepts]: Start accepts. Automaton has 12008 states and 18623 transitions. Word has length 4616 [2024-11-24 00:52:59,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:52:59,409 INFO L471 AbstractCegarLoop]: Abstraction has 12008 states and 18623 transitions. [2024-11-24 00:52:59,414 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) [2024-11-24 00:52:59,414 INFO L276 IsEmpty]: Start isEmpty. Operand 12008 states and 18623 transitions. [2024-11-24 00:52:59,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4617 [2024-11-24 00:52:59,757 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:52:59,761 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] [2024-11-24 00:52:59,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:52:59,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef9c7-cf94-4c7f-ad56-270eed2d9056/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:52:59,963 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:52:59,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:52:59,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1365387983, now seen corresponding path program 1 times [2024-11-24 00:52:59,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:52:59,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877873530] [2024-11-24 00:52:59,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:59,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms