./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_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB/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_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB --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 [2024-11-28 03:23:45,188 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:23:45,303 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:23:45,309 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:23:45,312 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:23:45,365 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:23:45,366 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:23:45,366 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:23:45,367 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:23:45,367 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:23:45,367 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:23:45,367 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:23:45,368 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:23:45,368 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:23:45,368 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:23:45,369 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:23:45,369 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:23:45,369 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:23:45,369 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:23:45,369 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:23:45,370 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:23:45,370 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:23:45,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:23:45,370 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:23:45,370 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:23:45,370 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:23:45,371 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:23:45,371 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:23:45,371 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:23:45,371 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:23:45,371 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:23:45,371 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:23:45,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:23:45,372 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:23:45,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:23:45,372 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:23:45,372 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:23:45,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:23:45,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:23:45,373 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:23:45,373 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:23:45,373 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:23:45,373 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:23:45,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:23:45,374 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:23:45,375 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:23:45,375 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:23:45,375 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:23:45,375 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_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB 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 [2024-11-28 03:23:45,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:23:45,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:23:45,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:23:45,819 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:23:45,820 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:23:45,821 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c [2024-11-28 03:23:49,250 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB/data/95b80b6af/20e9e9292cba4c0a95c6b97120e96f35/FLAG626788e34 [2024-11-28 03:23:50,135 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:23:50,136 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_489e8954-3418-48c8-ac67-6ae4cb9e20a9/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c [2024-11-28 03:23:50,181 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB/data/95b80b6af/20e9e9292cba4c0a95c6b97120e96f35/FLAG626788e34 [2024-11-28 03:23:50,206 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB/data/95b80b6af/20e9e9292cba4c0a95c6b97120e96f35 [2024-11-28 03:23:50,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:23:50,212 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:23:50,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:23:50,214 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:23:50,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:23:50,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:23:50" (1/1) ... [2024-11-28 03:23:50,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e8c2aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:50, skipping insertion in model container [2024-11-28 03:23:50,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:23:50" (1/1) ... [2024-11-28 03:23:50,397 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:23:50,757 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_489e8954-3418-48c8-ac67-6ae4cb9e20a9/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c[1674,1687] [2024-11-28 03:23:52,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:23:52,539 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:23:52,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.bug1.i","-S") [42] [2024-11-28 03:23:52,561 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_489e8954-3418-48c8-ac67-6ae4cb9e20a9/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c[1674,1687] [2024-11-28 03:23:53,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:23:53,748 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:23:53,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:53 WrapperNode [2024-11-28 03:23:53,751 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:23:53,752 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:23:53,753 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:23:53,754 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:23:53,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:53" (1/1) ... [2024-11-28 03:23:54,220 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:53" (1/1) ... [2024-11-28 03:23:56,545 INFO L138 Inliner]: procedures = 57, calls = 18490, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 40481 [2024-11-28 03:23:56,546 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:23:56,547 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:23:56,547 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:23:56,547 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:23:56,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:53" (1/1) ... [2024-11-28 03:23:56,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:53" (1/1) ... [2024-11-28 03:23:56,927 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:53" (1/1) ... [2024-11-28 03:23:57,222 INFO L175 MemorySlicer]: Split 14318 memory accesses to 17 slices as follows [2, 2784, 3812, 2400, 1676, 1252, 4, 2, 852, 326, 429, 325, 429, 8, 7, 2, 8]. 27 percent of accesses are in the largest equivalence class. The 652 initializations are split as follows [2, 96, 96, 8, 8, 4, 0, 0, 4, 108, 108, 108, 108, 0, 2, 0, 0]. The 661 writes are split as follows [0, 96, 96, 8, 8, 4, 0, 1, 4, 109, 107, 109, 107, 4, 3, 1, 4]. [2024-11-28 03:23:57,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:53" (1/1) ... [2024-11-28 03:23:57,223 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:53" (1/1) ... [2024-11-28 03:23:58,362 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:53" (1/1) ... [2024-11-28 03:23:58,423 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:53" (1/1) ... [2024-11-28 03:23:58,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:53" (1/1) ... [2024-11-28 03:23:58,762 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:53" (1/1) ... [2024-11-28 03:23:58,852 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:53" (1/1) ... [2024-11-28 03:23:59,251 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:23:59,252 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:23:59,255 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:23:59,255 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:23:59,257 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:53" (1/1) ... [2024-11-28 03:23:59,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:23:59,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:59,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:23:59,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:23:59,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:23:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2024-11-28 03:23:59,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2024-11-28 03:23:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2024-11-28 03:23:59,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2024-11-28 03:23:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:23:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2024-11-28 03:23:59,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2024-11-28 03:23:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2024-11-28 03:23:59,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2024-11-28 03:23:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2024-11-28 03:23:59,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2024-11-28 03:23:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:23:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:23:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 03:23:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 03:23:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 03:23:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 03:23:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 03:23:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 03:23:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-28 03:23:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-28 03:23:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-28 03:23:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-28 03:23:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-28 03:23:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-28 03:23:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-28 03:23:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-28 03:23:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-28 03:23:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2024-11-28 03:23:59,344 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2024-11-28 03:23:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2024-11-28 03:23:59,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2024-11-28 03:23:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-28 03:23:59,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-28 03:23:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-28 03:23:59,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-28 03:23:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:23:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2024-11-28 03:23:59,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2024-11-28 03:23:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:23:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:23:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 03:23:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 03:23:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 03:23:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 03:23:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 03:23:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 03:23:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-28 03:23:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-28 03:23:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-28 03:23:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-28 03:23:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-28 03:23:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-28 03:23:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-28 03:23:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-28 03:23:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-28 03:23:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2024-11-28 03:23:59,345 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2024-11-28 03:23:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:23:59,346 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:23:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:23:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:23:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:23:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 03:23:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 03:23:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 03:23:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 03:23:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 03:23:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 03:23:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-28 03:23:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-28 03:23:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-28 03:23:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-28 03:23:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-28 03:23:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-28 03:23:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-28 03:23:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-28 03:23:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:23:59,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:23:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2024-11-28 03:23:59,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2024-11-28 03:23:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2024-11-28 03:23:59,350 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2024-11-28 03:23:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2024-11-28 03:23:59,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2024-11-28 03:24:02,247 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:24:02,249 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:24:44,778 INFO L? ?]: Removed 272 outVars from TransFormulas that were not future-live. [2024-11-28 03:24:44,778 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:24:44,979 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:24:44,979 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:24:44,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:24:44 BoogieIcfgContainer [2024-11-28 03:24:44,980 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:24:44,982 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:24:44,983 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:24:44,990 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:24:44,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:23:50" (1/3) ... [2024-11-28 03:24:44,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6e946c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:24:44, skipping insertion in model container [2024-11-28 03:24:44,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:53" (2/3) ... [2024-11-28 03:24:44,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6e946c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:24:44, skipping insertion in model container [2024-11-28 03:24:44,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:24:44" (3/3) ... [2024-11-28 03:24:44,994 INFO L128 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M4-2.c [2024-11-28 03:24:45,017 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:24:45,021 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. [2024-11-28 03:24:45,393 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:24:45,412 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;@c18189f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:24:45,413 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:24:45,454 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) [2024-11-28 03:24:46,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4617 [2024-11-28 03:24:46,196 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:46,200 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] [2024-11-28 03:24:46,201 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:46,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:46,212 INFO L85 PathProgramCache]: Analyzing trace with hash -877292869, now seen corresponding path program 1 times [2024-11-28 03:24:46,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:46,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448854804] [2024-11-28 03:24:46,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:46,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:25:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:08,317 INFO L134 CoverageAnalysis]: Checked inductivity of 226464 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 225792 trivial. 0 not checked. [2024-11-28 03:25:08,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:25:08,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448854804] [2024-11-28 03:25:08,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448854804] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:25:08,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78708027] [2024-11-28 03:25:08,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:08,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:08,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:08,324 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:08,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:25:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:29,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 13978 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:25:29,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:29,605 INFO L134 CoverageAnalysis]: Checked inductivity of 226464 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 225792 trivial. 0 not checked. [2024-11-28 03:25:29,605 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:25:29,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78708027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:29,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:25:29,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:25:29,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600013608] [2024-11-28 03:25:29,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:29,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:25:29,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:25:29,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:25:29,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:25:29,705 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) [2024-11-28 03:25:30,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:30,607 INFO L93 Difference]: Finished difference Result 24023 states and 41362 transitions. [2024-11-28 03:25:30,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:25:30,612 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 [2024-11-28 03:25:30,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:30,731 INFO L225 Difference]: With dead ends: 24023 [2024-11-28 03:25:30,731 INFO L226 Difference]: Without dead ends: 12008 [2024-11-28 03:25:30,812 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 [2024-11-28 03:25:30,817 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 [2024-11-28 03:25:30,818 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] [2024-11-28 03:25:30,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12008 states. [2024-11-28 03:25:41,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12008 to 12008. [2024-11-28 03:25:41,894 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) [2024-11-28 03:25:42,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12008 states to 12008 states and 18623 transitions. [2024-11-28 03:25:42,084 INFO L78 Accepts]: Start accepts. Automaton has 12008 states and 18623 transitions. Word has length 4616 [2024-11-28 03:25:42,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:42,089 INFO L471 AbstractCegarLoop]: Abstraction has 12008 states and 18623 transitions. [2024-11-28 03:25:42,091 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) [2024-11-28 03:25:42,092 INFO L276 IsEmpty]: Start isEmpty. Operand 12008 states and 18623 transitions. [2024-11-28 03:25:42,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4617 [2024-11-28 03:25:42,792 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:42,795 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] [2024-11-28 03:25:42,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:25:42,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_489e8954-3418-48c8-ac67-6ae4cb9e20a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:25:43,000 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:25:43,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:43,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1365387983, now seen corresponding path program 1 times [2024-11-28 03:25:43,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:25:43,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422063653] [2024-11-28 03:25:43,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:43,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms