./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-56.i --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_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/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_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-56.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/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_ebe25338-76dd-47f9-b246-e8a52cbc566b/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 ea5fa9597dfb355e2134f9e9e075c4e3ca829d1649455c17a870875ad29bc269 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:56:35,343 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:56:35,479 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:56:35,486 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:56:35,486 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:56:35,515 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:56:35,516 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:56:35,516 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:56:35,517 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:56:35,517 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:56:35,517 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:56:35,519 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:56:35,520 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:56:35,520 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:56:35,520 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:56:35,522 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:56:35,523 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:56:35,523 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:56:35,523 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:56:35,523 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:56:35,523 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:56:35,523 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:56:35,523 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:56:35,523 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:56:35,523 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:56:35,524 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:56:35,524 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:56:35,524 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:56:35,524 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:56:35,524 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:56:35,525 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:56:35,526 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:56:35,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:56:35,526 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:56:35,526 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:56:35,527 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:56:35,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:56:35,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:56:35,527 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:56:35,527 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:56:35,527 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:56:35,528 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:56:35,528 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:56:35,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:56:35,528 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:56:35,528 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:56:35,528 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:56:35,528 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:56:35,529 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_ebe25338-76dd-47f9-b246-e8a52cbc566b/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 -> ea5fa9597dfb355e2134f9e9e075c4e3ca829d1649455c17a870875ad29bc269 [2024-11-28 03:56:35,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:56:35,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:56:35,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:56:35,931 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:56:35,931 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:56:35,933 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-56.i [2024-11-28 03:56:39,191 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/data/bbe3d2c20/986bfd388a404aebb0247709dc7dcf85/FLAG8c5c6b05e [2024-11-28 03:56:39,569 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:56:39,570 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-56.i [2024-11-28 03:56:39,585 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/data/bbe3d2c20/986bfd388a404aebb0247709dc7dcf85/FLAG8c5c6b05e [2024-11-28 03:56:39,611 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/data/bbe3d2c20/986bfd388a404aebb0247709dc7dcf85 [2024-11-28 03:56:39,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:56:39,616 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:56:39,619 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:56:39,620 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:56:39,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:56:39,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:56:39" (1/1) ... [2024-11-28 03:56:39,627 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d409199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:39, skipping insertion in model container [2024-11-28 03:56:39,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:56:39" (1/1) ... [2024-11-28 03:56:39,656 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:56:39,851 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_ebe25338-76dd-47f9-b246-e8a52cbc566b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-56.i[915,928] [2024-11-28 03:56:39,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:56:39,948 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:56:39,964 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_ebe25338-76dd-47f9-b246-e8a52cbc566b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-56.i[915,928] [2024-11-28 03:56:39,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:56:40,008 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:56:40,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:40 WrapperNode [2024-11-28 03:56:40,008 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:56:40,009 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:56:40,010 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:56:40,010 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:56:40,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:40" (1/1) ... [2024-11-28 03:56:40,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:40" (1/1) ... [2024-11-28 03:56:40,055 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 105 [2024-11-28 03:56:40,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:56:40,056 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:56:40,056 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:56:40,056 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:56:40,065 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:40" (1/1) ... [2024-11-28 03:56:40,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:40" (1/1) ... [2024-11-28 03:56:40,068 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:40" (1/1) ... [2024-11-28 03:56:40,097 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]. [2024-11-28 03:56:40,097 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:40" (1/1) ... [2024-11-28 03:56:40,097 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:40" (1/1) ... [2024-11-28 03:56:40,112 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:40" (1/1) ... [2024-11-28 03:56:40,113 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:40" (1/1) ... [2024-11-28 03:56:40,120 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:40" (1/1) ... [2024-11-28 03:56:40,121 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:40" (1/1) ... [2024-11-28 03:56:40,127 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:40" (1/1) ... [2024-11-28 03:56:40,129 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:56:40,134 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:56:40,134 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:56:40,134 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:56:40,135 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:40" (1/1) ... [2024-11-28 03:56:40,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:56:40,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:40,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:56:40,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:56:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:56:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:56:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:56:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:56:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:56:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:56:40,284 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:56:40,286 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:56:40,644 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-28 03:56:40,644 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:56:40,656 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:56:40,659 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:56:40,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:56:40 BoogieIcfgContainer [2024-11-28 03:56:40,660 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:56:40,662 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:56:40,662 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:56:40,667 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:56:40,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:56:39" (1/3) ... [2024-11-28 03:56:40,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f31bc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:56:40, skipping insertion in model container [2024-11-28 03:56:40,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:40" (2/3) ... [2024-11-28 03:56:40,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f31bc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:56:40, skipping insertion in model container [2024-11-28 03:56:40,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:56:40" (3/3) ... [2024-11-28 03:56:40,672 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-56.i [2024-11-28 03:56:40,690 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:56:40,692 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-56.i that has 2 procedures, 47 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:56:40,757 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:56:40,773 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;@6473ae39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:56:40,773 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:56:40,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 35 states have internal predecessors, (46), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 03:56:40,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 03:56:40,787 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:40,788 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:40,788 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:56:40,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:40,796 INFO L85 PathProgramCache]: Analyzing trace with hash -950135633, now seen corresponding path program 1 times [2024-11-28 03:56:40,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:40,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587372581] [2024-11-28 03:56:40,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:40,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:41,089 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-28 03:56:41,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:41,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587372581] [2024-11-28 03:56:41,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587372581] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:41,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118640635] [2024-11-28 03:56:41,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:41,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:41,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:41,093 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:56:41,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:56:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:41,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:56:41,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:56:41,308 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-28 03:56:41,309 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:56:41,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118640635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:41,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:56:41,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:56:41,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438637541] [2024-11-28 03:56:41,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:41,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:56:41,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:41,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:56:41,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:56:41,345 INFO L87 Difference]: Start difference. First operand has 47 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 35 states have internal predecessors, (46), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 03:56:41,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:41,378 INFO L93 Difference]: Finished difference Result 91 states and 139 transitions. [2024-11-28 03:56:41,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:56:41,381 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 73 [2024-11-28 03:56:41,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:41,388 INFO L225 Difference]: With dead ends: 91 [2024-11-28 03:56:41,388 INFO L226 Difference]: Without dead ends: 43 [2024-11-28 03:56:41,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 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 03:56:41,398 INFO L435 NwaCegarLoop]: 63 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, 63 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 [2024-11-28 03:56:41,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:56:41,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-28 03:56:41,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-28 03:56:41,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 03:56:41,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 59 transitions. [2024-11-28 03:56:41,451 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 59 transitions. Word has length 73 [2024-11-28 03:56:41,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:41,451 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 59 transitions. [2024-11-28 03:56:41,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 03:56:41,452 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 59 transitions. [2024-11-28 03:56:41,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 03:56:41,456 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:41,456 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:41,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:56:41,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:56:41,658 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:56:41,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:41,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1901122705, now seen corresponding path program 1 times [2024-11-28 03:56:41,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:41,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78446080] [2024-11-28 03:56:41,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:41,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:42,646 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-28 03:56:42,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:42,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78446080] [2024-11-28 03:56:42,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78446080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:42,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:42,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:56:42,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169283858] [2024-11-28 03:56:42,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:42,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:56:42,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:42,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:56:42,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:42,651 INFO L87 Difference]: Start difference. First operand 43 states and 59 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-28 03:56:42,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:42,940 INFO L93 Difference]: Finished difference Result 123 states and 171 transitions. [2024-11-28 03:56:42,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:56:42,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 73 [2024-11-28 03:56:42,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:42,943 INFO L225 Difference]: With dead ends: 123 [2024-11-28 03:56:42,943 INFO L226 Difference]: Without dead ends: 83 [2024-11-28 03:56:42,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:56:42,947 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 38 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:42,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 169 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:56:42,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-28 03:56:42,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2024-11-28 03:56:42,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 52 states have (on average 1.2307692307692308) internal successors, (64), 52 states have internal predecessors, (64), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:56:42,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 104 transitions. [2024-11-28 03:56:42,976 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 104 transitions. Word has length 73 [2024-11-28 03:56:42,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:42,977 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 104 transitions. [2024-11-28 03:56:42,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-28 03:56:42,977 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 104 transitions. [2024-11-28 03:56:42,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 03:56:42,979 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:42,979 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:42,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:56:42,979 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:56:42,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:42,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1200058127, now seen corresponding path program 1 times [2024-11-28 03:56:42,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:42,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014448664] [2024-11-28 03:56:42,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:42,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:46,016 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-28 03:56:46,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:46,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014448664] [2024-11-28 03:56:46,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014448664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:46,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:46,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:56:46,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139050397] [2024-11-28 03:56:46,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:46,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:56:46,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:46,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:56:46,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:56:46,020 INFO L87 Difference]: Start difference. First operand 75 states and 104 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-28 03:56:47,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:47,264 INFO L93 Difference]: Finished difference Result 112 states and 152 transitions. [2024-11-28 03:56:47,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:56:47,265 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 73 [2024-11-28 03:56:47,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:47,267 INFO L225 Difference]: With dead ends: 112 [2024-11-28 03:56:47,267 INFO L226 Difference]: Without dead ends: 110 [2024-11-28 03:56:47,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:56:47,269 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 41 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:47,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 272 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:56:47,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-28 03:56:47,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 92. [2024-11-28 03:56:47,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 69 states have internal predecessors, (88), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:56:47,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 128 transitions. [2024-11-28 03:56:47,288 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 128 transitions. Word has length 73 [2024-11-28 03:56:47,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:47,288 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 128 transitions. [2024-11-28 03:56:47,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-28 03:56:47,289 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 128 transitions. [2024-11-28 03:56:47,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:56:47,291 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:47,291 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:47,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:56:47,291 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:56:47,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:47,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1064328241, now seen corresponding path program 1 times [2024-11-28 03:56:47,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:47,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43038237] [2024-11-28 03:56:47,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:47,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:47,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:50,615 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-28 03:56:50,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:50,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43038237] [2024-11-28 03:56:50,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43038237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:50,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:50,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:56:50,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875593241] [2024-11-28 03:56:50,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:50,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:56:50,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:50,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:56:50,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:56:50,618 INFO L87 Difference]: Start difference. First operand 92 states and 128 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-28 03:56:52,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:52,057 INFO L93 Difference]: Finished difference Result 126 states and 171 transitions. [2024-11-28 03:56:52,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:56:52,058 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 74 [2024-11-28 03:56:52,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:52,062 INFO L225 Difference]: With dead ends: 126 [2024-11-28 03:56:52,063 INFO L226 Difference]: Without dead ends: 124 [2024-11-28 03:56:52,063 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:56:52,067 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 29 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:52,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 304 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:56:52,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-28 03:56:52,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 93. [2024-11-28 03:56:52,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 70 states have internal predecessors, (90), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:56:52,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 130 transitions. [2024-11-28 03:56:52,089 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 130 transitions. Word has length 74 [2024-11-28 03:56:52,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:52,090 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 130 transitions. [2024-11-28 03:56:52,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-28 03:56:52,091 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 130 transitions. [2024-11-28 03:56:52,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:56:52,092 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:52,092 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:52,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:56:52,093 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:56:52,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:52,094 INFO L85 PathProgramCache]: Analyzing trace with hash -384269871, now seen corresponding path program 1 times [2024-11-28 03:56:52,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:52,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023407396] [2024-11-28 03:56:52,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:52,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:54,556 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-28 03:56:54,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:54,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023407396] [2024-11-28 03:56:54,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023407396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:54,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:54,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:56:54,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645644886] [2024-11-28 03:56:54,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:54,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:56:54,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:54,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:56:54,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:56:54,563 INFO L87 Difference]: Start difference. First operand 93 states and 130 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-28 03:56:55,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:55,646 INFO L93 Difference]: Finished difference Result 124 states and 169 transitions. [2024-11-28 03:56:55,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:56:55,647 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 74 [2024-11-28 03:56:55,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:55,650 INFO L225 Difference]: With dead ends: 124 [2024-11-28 03:56:55,650 INFO L226 Difference]: Without dead ends: 122 [2024-11-28 03:56:55,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:56:55,653 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 44 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:55,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 262 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:56:55,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-28 03:56:55,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 88. [2024-11-28 03:56:55,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 65 states have internal predecessors, (83), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:56:55,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 123 transitions. [2024-11-28 03:56:55,674 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 123 transitions. Word has length 74 [2024-11-28 03:56:55,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:55,674 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 123 transitions. [2024-11-28 03:56:55,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-28 03:56:55,674 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 123 transitions. [2024-11-28 03:56:55,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 03:56:55,680 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:55,680 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:55,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:56:55,681 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:56:55,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:55,681 INFO L85 PathProgramCache]: Analyzing trace with hash -253360224, now seen corresponding path program 1 times [2024-11-28 03:56:55,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:55,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085578622] [2024-11-28 03:56:55,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:55,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:55,836 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-28 03:56:55,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:55,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085578622] [2024-11-28 03:56:55,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085578622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:55,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062618560] [2024-11-28 03:56:55,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:55,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:55,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:55,844 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:56:55,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:56:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:55,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:56:55,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:56:56,103 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 429 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-11-28 03:56:56,107 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:56:56,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062618560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:56,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:56:56,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-28 03:56:56,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274923220] [2024-11-28 03:56:56,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:56,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:56:56,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:56,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:56:56,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:56,111 INFO L87 Difference]: Start difference. First operand 88 states and 123 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-28 03:56:56,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:56,164 INFO L93 Difference]: Finished difference Result 93 states and 128 transitions. [2024-11-28 03:56:56,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:56:56,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 143 [2024-11-28 03:56:56,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:56,165 INFO L225 Difference]: With dead ends: 93 [2024-11-28 03:56:56,165 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:56:56,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:56,166 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 6 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:56,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 102 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:56:56,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:56:56,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:56:56,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:56,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:56:56,168 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 143 [2024-11-28 03:56:56,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:56,168 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:56:56,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-28 03:56:56,172 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:56:56,172 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:56:56,175 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:56:56,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:56:56,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:56,386 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-28 03:56:56,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 03:56:56,603 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:56:56,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:56:56 BoogieIcfgContainer [2024-11-28 03:56:56,616 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:56:56,617 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:56:56,617 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:56:56,617 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:56:56,618 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:56:40" (3/4) ... [2024-11-28 03:56:56,620 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:56:56,626 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 03:56:56,630 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-28 03:56:56,631 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 03:56:56,631 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:56:56,631 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:56:56,728 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:56:56,728 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:56:56,728 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:56:56,729 INFO L158 Benchmark]: Toolchain (without parser) took 17113.24ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 106.2MB in the beginning and 205.5MB in the end (delta: -99.3MB). Peak memory consumption was 122.1MB. Max. memory is 16.1GB. [2024-11-28 03:56:56,730 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:56:56,730 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.13ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 93.4MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:56:56,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.39ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 90.3MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:56:56,731 INFO L158 Benchmark]: Boogie Preprocessor took 73.32ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 86.0MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:56:56,731 INFO L158 Benchmark]: RCFGBuilder took 525.42ms. Allocated memory is still 142.6MB. Free memory was 86.0MB in the beginning and 68.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:56:56,732 INFO L158 Benchmark]: TraceAbstraction took 15954.55ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 68.2MB in the beginning and 209.6MB in the end (delta: -141.4MB). Peak memory consumption was 88.5MB. Max. memory is 16.1GB. [2024-11-28 03:56:56,733 INFO L158 Benchmark]: Witness Printer took 111.37ms. Allocated memory is still 369.1MB. Free memory was 209.6MB in the beginning and 205.5MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:56:56,735 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.13ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 93.4MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.39ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 90.3MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.32ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 86.0MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 525.42ms. Allocated memory is still 142.6MB. Free memory was 86.0MB in the beginning and 68.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 15954.55ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 68.2MB in the beginning and 209.6MB in the end (delta: -141.4MB). Peak memory consumption was 88.5MB. Max. memory is 16.1GB. * Witness Printer took 111.37ms. Allocated memory is still 369.1MB. Free memory was 209.6MB in the beginning and 205.5MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.7s, OverallIterations: 6, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 158 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 158 mSDsluCounter, 1172 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 856 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 688 IncrementalHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 316 mSDtfsCounter, 688 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 276 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=4, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 91 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 726 NumberOfCodeBlocks, 726 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 718 ConstructedInterpolants, 0 QuantifiedInterpolants, 2629 SizeOfPredicates, 0 NumberOfNonLiveVariables, 511 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 2639/2658 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: ((((((var_1_1 == 1) && (last_1_var_1_1 == 1)) && (k_loop == 0)) && (var_1_11 == 0)) && (last_1_var_1_11 == 0)) || (0 < k_loop)) RESULT: Ultimate proved your program to be correct! [2024-11-28 03:56:56,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe25338-76dd-47f9-b246-e8a52cbc566b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE