./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-200-3-4-sat-1.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_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-200-3-4-sat-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c1c57bd6c70206a1d12cd959610b70fe3f0b87a60c5740fa169b82e543a92a93 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:51:20,765 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:51:20,817 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 14:51:20,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:51:20,822 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:51:20,842 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:51:20,843 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:51:20,843 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:51:20,843 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:51:20,844 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:51:20,844 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:51:20,844 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:51:20,844 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:51:20,844 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:51:20,844 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:51:20,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:51:20,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:51:20,845 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:51:20,845 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:51:20,845 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:51:20,845 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:51:20,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:51:20,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:51:20,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:51:20,845 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:51:20,845 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:51:20,845 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:51:20,846 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:51:20,846 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:51:20,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:51:20,846 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:51:20,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:51:20,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:51:20,846 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:51:20,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:51:20,846 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:51:20,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:51:20,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:51:20,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:51:20,847 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:51:20,847 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:51:20,847 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:51:20,847 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:51:20,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:51:20,847 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:51:20,847 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:51:20,848 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:51:20,848 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:51:20,848 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_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1c57bd6c70206a1d12cd959610b70fe3f0b87a60c5740fa169b82e543a92a93 [2024-12-02 14:51:21,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:51:21,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:51:21,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:51:21,052 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:51:21,052 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:51:21,053 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/xcsp/aim-200-3-4-sat-1.c [2024-12-02 14:51:23,693 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/data/f66719675/3c6e2d7b04894ed6b300d16095658b1b/FLAG9b5b648ce [2024-12-02 14:51:24,017 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:51:24,018 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/sv-benchmarks/c/xcsp/aim-200-3-4-sat-1.c [2024-12-02 14:51:24,029 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/data/f66719675/3c6e2d7b04894ed6b300d16095658b1b/FLAG9b5b648ce [2024-12-02 14:51:24,259 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/data/f66719675/3c6e2d7b04894ed6b300d16095658b1b [2024-12-02 14:51:24,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:51:24,263 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:51:24,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:51:24,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:51:24,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:51:24,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:51:24" (1/1) ... [2024-12-02 14:51:24,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be6844c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:24, skipping insertion in model container [2024-12-02 14:51:24,268 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:51:24" (1/1) ... [2024-12-02 14:51:24,302 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:51:24,711 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_0e0028e0-19ef-4273-846e-7c49d52bb54b/sv-benchmarks/c/xcsp/aim-200-3-4-sat-1.c[59038,59051] [2024-12-02 14:51:24,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:51:24,740 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:51:24,903 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_0e0028e0-19ef-4273-846e-7c49d52bb54b/sv-benchmarks/c/xcsp/aim-200-3-4-sat-1.c[59038,59051] [2024-12-02 14:51:24,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:51:24,948 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:51:24,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:24 WrapperNode [2024-12-02 14:51:24,949 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:51:24,950 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:51:24,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:51:24,950 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:51:24,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:24" (1/1) ... [2024-12-02 14:51:25,039 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:24" (1/1) ... [2024-12-02 14:51:25,515 INFO L138 Inliner]: procedures = 13, calls = 1053, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13174 [2024-12-02 14:51:25,515 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:51:25,516 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:51:25,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:51:25,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:51:25,525 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:24" (1/1) ... [2024-12-02 14:51:25,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:24" (1/1) ... [2024-12-02 14:51:25,667 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:24" (1/1) ... [2024-12-02 14:51:25,758 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 14:51:25,758 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:24" (1/1) ... [2024-12-02 14:51:25,758 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:24" (1/1) ... [2024-12-02 14:51:25,951 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:24" (1/1) ... [2024-12-02 14:51:25,964 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:24" (1/1) ... [2024-12-02 14:51:26,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:24" (1/1) ... [2024-12-02 14:51:26,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:24" (1/1) ... [2024-12-02 14:51:26,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:24" (1/1) ... [2024-12-02 14:51:26,150 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:51:26,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:51:26,151 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:51:26,151 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:51:26,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:24" (1/1) ... [2024-12-02 14:51:26,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:51:26,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:51:26,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:51:26,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:51:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:51:26,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:51:26,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:51:26,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:51:26,208 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-12-02 14:51:26,208 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-12-02 14:51:26,546 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:51:26,548 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:51:49,354 INFO L? ?]: Removed 2834 outVars from TransFormulas that were not future-live. [2024-12-02 14:51:49,354 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:51:49,441 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:51:49,441 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 14:51:49,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:51:49 BoogieIcfgContainer [2024-12-02 14:51:49,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:51:49,444 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:51:49,444 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:51:49,448 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:51:49,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:51:24" (1/3) ... [2024-12-02 14:51:49,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69386c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:51:49, skipping insertion in model container [2024-12-02 14:51:49,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:24" (2/3) ... [2024-12-02 14:51:49,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69386c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:51:49, skipping insertion in model container [2024-12-02 14:51:49,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:51:49" (3/3) ... [2024-12-02 14:51:49,451 INFO L128 eAbstractionObserver]: Analyzing ICFG aim-200-3-4-sat-1.c [2024-12-02 14:51:49,465 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:51:49,466 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aim-200-3-4-sat-1.c that has 2 procedures, 6070 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 14:51:49,620 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:51:49,631 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;@6c2abeab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:51:49,631 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:51:49,650 INFO L276 IsEmpty]: Start isEmpty. Operand has 6070 states, 5021 states have (on average 1.5536745668193588) internal successors, (7801), 5022 states have internal predecessors, (7801), 1046 states have call successors, (1046), 1 states have call predecessors, (1046), 1 states have return successors, (1046), 1046 states have call predecessors, (1046), 1046 states have call successors, (1046) [2024-12-02 14:51:50,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7469 [2024-12-02 14:51:50,029 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:51:50,032 INFO L218 NwaCegarLoop]: trace histogram [1046, 1046, 1046, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:51:50,033 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:51:50,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:51:50,042 INFO L85 PathProgramCache]: Analyzing trace with hash 850169049, now seen corresponding path program 1 times [2024-12-02 14:51:50,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:51:50,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219544511] [2024-12-02 14:51:50,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:51:50,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:51:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:51:58,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2186140 backedges. 0 proven. 2090 refuted. 0 times theorem prover too weak. 2184050 trivial. 0 not checked. [2024-12-02 14:51:58,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:51:58,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219544511] [2024-12-02 14:51:58,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219544511] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:51:58,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087523046] [2024-12-02 14:51:58,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:51:58,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:51:58,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:51:58,785 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:51:58,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:52:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:01,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 14653 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 14:52:01,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:52:01,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2186140 backedges. 2090 proven. 0 refuted. 0 times theorem prover too weak. 2184050 trivial. 0 not checked. [2024-12-02 14:52:01,686 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:52:01,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087523046] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:01,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:52:01,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 14:52:01,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178015419] [2024-12-02 14:52:01,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:01,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 14:52:01,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:01,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 14:52:01,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:52:01,728 INFO L87 Difference]: Start difference. First operand has 6070 states, 5021 states have (on average 1.5536745668193588) internal successors, (7801), 5022 states have internal predecessors, (7801), 1046 states have call successors, (1046), 1 states have call predecessors, (1046), 1 states have return successors, (1046), 1046 states have call predecessors, (1046), 1046 states have call successors, (1046) Second operand has 2 states, 2 states have (on average 1121.5) internal successors, (2243), 2 states have internal predecessors, (2243), 2 states have call successors, (1046), 2 states have call predecessors, (1046), 1 states have return successors, (1046), 1 states have call predecessors, (1046), 2 states have call successors, (1046) [2024-12-02 14:52:01,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:01,982 INFO L93 Difference]: Finished difference Result 12134 states and 20826 transitions. [2024-12-02 14:52:01,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 14:52:01,985 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1121.5) internal successors, (2243), 2 states have internal predecessors, (2243), 2 states have call successors, (1046), 2 states have call predecessors, (1046), 1 states have return successors, (1046), 1 states have call predecessors, (1046), 2 states have call successors, (1046) Word has length 7468 [2024-12-02 14:52:01,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:02,018 INFO L225 Difference]: With dead ends: 12134 [2024-12-02 14:52:02,018 INFO L226 Difference]: Without dead ends: 6067 [2024-12-02 14:52:02,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7469 GetRequests, 7469 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:52:02,037 INFO L435 NwaCegarLoop]: 9889 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, 9889 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:02,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9889 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:52:02,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6067 states. [2024-12-02 14:52:02,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6067 to 6067. [2024-12-02 14:52:02,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6067 states, 5019 states have (on average 1.5534967124925283) internal successors, (7797), 5019 states have internal predecessors, (7797), 1046 states have call successors, (1046), 1 states have call predecessors, (1046), 1 states have return successors, (1046), 1046 states have call predecessors, (1046), 1046 states have call successors, (1046) [2024-12-02 14:52:02,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6067 states to 6067 states and 9889 transitions. [2024-12-02 14:52:02,853 INFO L78 Accepts]: Start accepts. Automaton has 6067 states and 9889 transitions. Word has length 7468 [2024-12-02 14:52:02,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:02,855 INFO L471 AbstractCegarLoop]: Abstraction has 6067 states and 9889 transitions. [2024-12-02 14:52:02,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1121.5) internal successors, (2243), 2 states have internal predecessors, (2243), 2 states have call successors, (1046), 2 states have call predecessors, (1046), 1 states have return successors, (1046), 1 states have call predecessors, (1046), 2 states have call successors, (1046) [2024-12-02 14:52:02,857 INFO L276 IsEmpty]: Start isEmpty. Operand 6067 states and 9889 transitions. [2024-12-02 14:52:03,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7469 [2024-12-02 14:52:03,252 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:03,254 INFO L218 NwaCegarLoop]: trace histogram [1046, 1046, 1046, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:52:03,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:52:03,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 14:52:03,455 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:03,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:03,459 INFO L85 PathProgramCache]: Analyzing trace with hash -358655171, now seen corresponding path program 1 times [2024-12-02 14:52:03,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:03,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354938987] [2024-12-02 14:52:03,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:03,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:53,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2186140 backedges. 7200 proven. 54360 refuted. 0 times theorem prover too weak. 2124580 trivial. 0 not checked. [2024-12-02 14:56:53,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:53,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354938987] [2024-12-02 14:56:53,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354938987] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:56:53,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630341579] [2024-12-02 14:56:53,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:53,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:56:53,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:56:53,764 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:56:53,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0028e0-19ef-4273-846e-7c49d52bb54b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 14:56:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:56,281 INFO L256 TraceCheckSpWp]: Trace formula consists of 14653 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-12-02 14:56:56,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:58:14,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2186140 backedges. 7972 proven. 27258 refuted. 0 times theorem prover too weak. 2150910 trivial. 0 not checked. [2024-12-02 14:58:14,620 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:59:25,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2186140 backedges. 3792 proven. 27288 refuted. 0 times theorem prover too weak. 2155060 trivial. 0 not checked. [2024-12-02 14:59:25,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630341579] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:59:25,654 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:59:25,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 20, 20] total 68 [2024-12-02 14:59:25,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687174854] [2024-12-02 14:59:25,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:59:25,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2024-12-02 14:59:25,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:59:25,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2024-12-02 14:59:25,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=621, Invalid=3935, Unknown=0, NotChecked=0, Total=4556 [2024-12-02 14:59:25,718 INFO L87 Difference]: Start difference. First operand 6067 states and 9889 transitions. Second operand has 68 states, 45 states have (on average 147.35555555555555) internal successors, (6631), 49 states have internal predecessors, (6631), 64 states have call successors, (3081), 2 states have call predecessors, (3081), 3 states have return successors, (3083), 60 states have call predecessors, (3083), 64 states have call successors, (3083)