./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.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_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/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_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/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_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/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 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:16:28,042 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:16:28,104 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:16:28,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:16:28,108 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:16:28,126 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:16:28,127 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:16:28,127 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:16:28,127 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:16:28,128 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:16:28,128 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:16:28,128 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:16:28,128 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:16:28,128 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:16:28,128 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:16:28,129 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:16:28,129 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:16:28,129 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:16:28,129 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:16:28,129 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:16:28,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:16:28,129 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:16:28,129 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:16:28,129 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:16:28,129 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:16:28,129 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:16:28,130 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:16:28,130 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:16:28,130 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:16:28,130 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:16:28,130 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:16:28,130 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:16:28,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:16:28,130 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:16:28,130 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:16:28,131 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:16:28,131 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:16:28,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:16:28,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:16:28,131 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:16:28,131 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:16:28,131 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:16:28,131 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:16:28,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:16:28,131 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:16:28,131 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:16:28,132 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:16:28,132 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:16:28,132 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_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/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 -> 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687 [2024-12-02 08:16:28,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:16:28,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:16:28,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:16:28,350 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:16:28,351 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:16:28,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2024-12-02 08:16:31,083 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/bin/uautomizer-verify-84ZbGMXZE1/data/9666110aa/c86e9327ddc14954a34d25653f390159/FLAG5ad86e00e [2024-12-02 08:16:31,351 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:16:31,352 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2024-12-02 08:16:31,363 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/bin/uautomizer-verify-84ZbGMXZE1/data/9666110aa/c86e9327ddc14954a34d25653f390159/FLAG5ad86e00e [2024-12-02 08:16:31,676 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/bin/uautomizer-verify-84ZbGMXZE1/data/9666110aa/c86e9327ddc14954a34d25653f390159 [2024-12-02 08:16:31,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:16:31,679 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:16:31,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:16:31,681 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:16:31,685 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:16:31,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:16:31" (1/1) ... [2024-12-02 08:16:31,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36059bd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:31, skipping insertion in model container [2024-12-02 08:16:31,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:16:31" (1/1) ... [2024-12-02 08:16:31,715 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:16:31,836 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_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2024-12-02 08:16:31,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:16:31,950 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:16:31,960 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_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2024-12-02 08:16:31,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:16:32,022 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:16:32,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:32 WrapperNode [2024-12-02 08:16:32,023 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:16:32,024 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:16:32,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:16:32,024 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:16:32,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:32" (1/1) ... [2024-12-02 08:16:32,039 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:32" (1/1) ... [2024-12-02 08:16:32,056 INFO L138 Inliner]: procedures = 165, calls = 23, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 96 [2024-12-02 08:16:32,057 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:16:32,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:16:32,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:16:32,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:16:32,065 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:32" (1/1) ... [2024-12-02 08:16:32,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:32" (1/1) ... [2024-12-02 08:16:32,068 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:32" (1/1) ... [2024-12-02 08:16:32,078 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2024-12-02 08:16:32,079 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:32" (1/1) ... [2024-12-02 08:16:32,079 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:32" (1/1) ... [2024-12-02 08:16:32,083 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:32" (1/1) ... [2024-12-02 08:16:32,084 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:32" (1/1) ... [2024-12-02 08:16:32,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:32" (1/1) ... [2024-12-02 08:16:32,087 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:32" (1/1) ... [2024-12-02 08:16:32,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:32" (1/1) ... [2024-12-02 08:16:32,089 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:16:32,089 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:16:32,090 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:16:32,090 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:16:32,090 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:32" (1/1) ... [2024-12-02 08:16:32,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:16:32,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:16:32,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:16:32,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:16:32,141 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-12-02 08:16:32,141 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-12-02 08:16:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 08:16:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:16:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:16:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 08:16:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 08:16:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:16:32,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:16:32,143 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 08:16:32,231 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:16:32,232 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:16:32,394 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 08:16:32,394 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:16:32,503 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:16:32,503 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 08:16:32,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:16:32 BoogieIcfgContainer [2024-12-02 08:16:32,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:16:32,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:16:32,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:16:32,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:16:32,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:16:31" (1/3) ... [2024-12-02 08:16:32,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd72d50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:16:32, skipping insertion in model container [2024-12-02 08:16:32,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:32" (2/3) ... [2024-12-02 08:16:32,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd72d50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:16:32, skipping insertion in model container [2024-12-02 08:16:32,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:16:32" (3/3) ... [2024-12-02 08:16:32,513 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_69-refine-protected-loop-interval_true.i [2024-12-02 08:16:32,528 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:16:32,529 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_69-refine-protected-loop-interval_true.i that has 2 procedures, 29 locations, 1 initial locations, 3 loop locations, and 2 error locations. [2024-12-02 08:16:32,529 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 08:16:32,579 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 08:16:32,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 34 transitions, 72 flow [2024-12-02 08:16:32,638 INFO L124 PetriNetUnfolderBase]: 6/33 cut-off events. [2024-12-02 08:16:32,640 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 08:16:32,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 33 events. 6/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2024-12-02 08:16:32,643 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 34 transitions, 72 flow [2024-12-02 08:16:32,645 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 33 transitions, 69 flow [2024-12-02 08:16:32,651 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:16:32,661 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;@474a5381, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:16:32,661 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-12-02 08:16:32,667 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 08:16:32,667 INFO L124 PetriNetUnfolderBase]: 4/23 cut-off events. [2024-12-02 08:16:32,668 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 08:16:32,668 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:16:32,668 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:16:32,668 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 08:16:32,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:32,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1248614986, now seen corresponding path program 1 times [2024-12-02 08:16:32,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:32,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899594882] [2024-12-02 08:16:32,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:32,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:32,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:32,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:32,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899594882] [2024-12-02 08:16:32,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899594882] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:16:32,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:16:32,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:16:32,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30073863] [2024-12-02 08:16:32,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:32,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:16:32,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:32,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:16:32,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:16:32,971 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 34 [2024-12-02 08:16:32,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 33 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2024-12-02 08:16:32,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:16:32,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 34 [2024-12-02 08:16:32,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:16:33,130 INFO L124 PetriNetUnfolderBase]: 135/274 cut-off events. [2024-12-02 08:16:33,130 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 08:16:33,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 274 events. 135/274 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 953 event pairs, 43 based on Foata normal form. 6/239 useless extension candidates. Maximal degree in co-relation 517. Up to 144 conditions per place. [2024-12-02 08:16:33,134 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 32 selfloop transitions, 9 changer transitions 2/49 dead transitions. [2024-12-02 08:16:33,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 49 transitions, 187 flow [2024-12-02 08:16:33,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:16:33,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 08:16:33,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 90 transitions. [2024-12-02 08:16:33,146 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5294117647058824 [2024-12-02 08:16:33,147 INFO L175 Difference]: Start difference. First operand has 31 places, 33 transitions, 69 flow. Second operand 5 states and 90 transitions. [2024-12-02 08:16:33,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 49 transitions, 187 flow [2024-12-02 08:16:33,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 49 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 08:16:33,155 INFO L231 Difference]: Finished difference. Result has 35 places, 33 transitions, 116 flow [2024-12-02 08:16:33,157 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=35, PETRI_TRANSITIONS=33} [2024-12-02 08:16:33,160 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2024-12-02 08:16:33,161 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 33 transitions, 116 flow [2024-12-02 08:16:33,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2024-12-02 08:16:33,161 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:16:33,161 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:16:33,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:16:33,161 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 08:16:33,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:33,162 INFO L85 PathProgramCache]: Analyzing trace with hash -944516246, now seen corresponding path program 1 times [2024-12-02 08:16:33,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:33,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270816358] [2024-12-02 08:16:33,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:33,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:33,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:33,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:33,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270816358] [2024-12-02 08:16:33,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270816358] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:16:33,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:16:33,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:16:33,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549710153] [2024-12-02 08:16:33,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:33,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:16:33,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:33,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:16:33,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:16:33,295 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 34 [2024-12-02 08:16:33,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 33 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-12-02 08:16:33,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:16:33,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 34 [2024-12-02 08:16:33,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:16:33,430 INFO L124 PetriNetUnfolderBase]: 107/251 cut-off events. [2024-12-02 08:16:33,430 INFO L125 PetriNetUnfolderBase]: For 173/179 co-relation queries the response was YES. [2024-12-02 08:16:33,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 251 events. 107/251 cut-off events. For 173/179 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 802 event pairs, 22 based on Foata normal form. 12/243 useless extension candidates. Maximal degree in co-relation 620. Up to 89 conditions per place. [2024-12-02 08:16:33,433 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 31 selfloop transitions, 5 changer transitions 1/45 dead transitions. [2024-12-02 08:16:33,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 45 transitions, 226 flow [2024-12-02 08:16:33,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:16:33,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 08:16:33,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2024-12-02 08:16:33,434 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6029411764705882 [2024-12-02 08:16:33,434 INFO L175 Difference]: Start difference. First operand has 35 places, 33 transitions, 116 flow. Second operand 4 states and 82 transitions. [2024-12-02 08:16:33,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 45 transitions, 226 flow [2024-12-02 08:16:33,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 45 transitions, 226 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 08:16:33,437 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 137 flow [2024-12-02 08:16:33,437 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=137, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2024-12-02 08:16:33,438 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2024-12-02 08:16:33,438 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 137 flow [2024-12-02 08:16:33,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-12-02 08:16:33,438 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:16:33,438 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:16:33,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:16:33,439 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 08:16:33,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:33,439 INFO L85 PathProgramCache]: Analyzing trace with hash 940290199, now seen corresponding path program 1 times [2024-12-02 08:16:33,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:33,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026975603] [2024-12-02 08:16:33,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:33,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:33,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 08:16:33,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:33,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026975603] [2024-12-02 08:16:33,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026975603] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:16:33,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:16:33,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:16:33,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547068663] [2024-12-02 08:16:33,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:33,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:16:33,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:33,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:16:33,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:16:33,531 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-12-02 08:16:33,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 137 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-12-02 08:16:33,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:16:33,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-12-02 08:16:33,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:16:33,602 INFO L124 PetriNetUnfolderBase]: 64/171 cut-off events. [2024-12-02 08:16:33,602 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-12-02 08:16:33,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 171 events. 64/171 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 498 event pairs, 16 based on Foata normal form. 13/168 useless extension candidates. Maximal degree in co-relation 416. Up to 89 conditions per place. [2024-12-02 08:16:33,604 INFO L140 encePairwiseOnDemand]: 30/34 looper letters, 21 selfloop transitions, 4 changer transitions 4/36 dead transitions. [2024-12-02 08:16:33,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 36 transitions, 196 flow [2024-12-02 08:16:33,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:16:33,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 08:16:33,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-12-02 08:16:33,605 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6078431372549019 [2024-12-02 08:16:33,605 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 137 flow. Second operand 3 states and 62 transitions. [2024-12-02 08:16:33,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 36 transitions, 196 flow [2024-12-02 08:16:33,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 36 transitions, 182 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-12-02 08:16:33,607 INFO L231 Difference]: Finished difference. Result has 37 places, 27 transitions, 106 flow [2024-12-02 08:16:33,608 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=37, PETRI_TRANSITIONS=27} [2024-12-02 08:16:33,608 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 6 predicate places. [2024-12-02 08:16:33,608 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 27 transitions, 106 flow [2024-12-02 08:16:33,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-12-02 08:16:33,609 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:16:33,609 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:16:33,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:16:33,609 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 08:16:33,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:33,610 INFO L85 PathProgramCache]: Analyzing trace with hash -281671669, now seen corresponding path program 1 times [2024-12-02 08:16:33,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:33,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516159565] [2024-12-02 08:16:33,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:33,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:33,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:33,728 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:33,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:33,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516159565] [2024-12-02 08:16:33,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516159565] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:16:33,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:16:33,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:16:33,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818330563] [2024-12-02 08:16:33,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:33,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:16:33,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:33,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:16:33,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:16:33,739 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34 [2024-12-02 08:16:33,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 106 flow. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2024-12-02 08:16:33,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:16:33,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34 [2024-12-02 08:16:33,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:16:33,859 INFO L124 PetriNetUnfolderBase]: 80/197 cut-off events. [2024-12-02 08:16:33,859 INFO L125 PetriNetUnfolderBase]: For 107/107 co-relation queries the response was YES. [2024-12-02 08:16:33,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 197 events. 80/197 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 579 event pairs, 26 based on Foata normal form. 8/184 useless extension candidates. Maximal degree in co-relation 493. Up to 74 conditions per place. [2024-12-02 08:16:33,860 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2024-12-02 08:16:33,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 40 transitions, 216 flow [2024-12-02 08:16:33,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:16:33,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 08:16:33,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 79 transitions. [2024-12-02 08:16:33,862 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3872549019607843 [2024-12-02 08:16:33,863 INFO L175 Difference]: Start difference. First operand has 37 places, 27 transitions, 106 flow. Second operand 6 states and 79 transitions. [2024-12-02 08:16:33,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 40 transitions, 216 flow [2024-12-02 08:16:33,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 196 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-02 08:16:33,864 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2024-12-02 08:16:33,864 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2024-12-02 08:16:33,865 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2024-12-02 08:16:33,865 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2024-12-02 08:16:33,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2024-12-02 08:16:33,867 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-12-02 08:16:33,868 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-12-02 08:16:33,868 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-12-02 08:16:33,868 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-12-02 08:16:33,868 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-12-02 08:16:33,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:16:33,868 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-12-02 08:16:33,873 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-02 08:16:33,873 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 08:16:33,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:16:33 BasicIcfg [2024-12-02 08:16:33,879 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 08:16:33,879 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:16:33,879 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:16:33,879 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:16:33,880 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:16:32" (3/4) ... [2024-12-02 08:16:33,881 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 08:16:33,884 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure worker [2024-12-02 08:16:33,887 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2024-12-02 08:16:33,887 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-12-02 08:16:33,887 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-02 08:16:33,887 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 08:16:33,945 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 08:16:33,945 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 08:16:33,945 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:16:33,946 INFO L158 Benchmark]: Toolchain (without parser) took 2266.41ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 76.8MB in the end (delta: 15.2MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2024-12-02 08:16:33,946 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:16:33,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.02ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 71.8MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:16:33,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.76ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 70.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:16:33,947 INFO L158 Benchmark]: Boogie Preprocessor took 31.61ms. Allocated memory is still 117.4MB. Free memory was 70.2MB in the beginning and 68.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:16:33,947 INFO L158 Benchmark]: RCFGBuilder took 414.49ms. Allocated memory is still 117.4MB. Free memory was 68.3MB in the beginning and 43.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 08:16:33,947 INFO L158 Benchmark]: TraceAbstraction took 1372.91ms. Allocated memory is still 117.4MB. Free memory was 42.5MB in the beginning and 81.0MB in the end (delta: -38.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:16:33,947 INFO L158 Benchmark]: Witness Printer took 65.68ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 76.8MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:16:33,949 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.02ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 71.8MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.76ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 70.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.61ms. Allocated memory is still 117.4MB. Free memory was 70.2MB in the beginning and 68.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 414.49ms. Allocated memory is still 117.4MB. Free memory was 68.3MB in the beginning and 43.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1372.91ms. Allocated memory is still 117.4MB. Free memory was 42.5MB in the beginning and 81.0MB in the end (delta: -38.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 65.68ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 76.8MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - 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 with 1 thread instances CFG has 3 procedures, 50 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 243 IncrementalHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 1 mSDtfsCounter, 243 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=2, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 149 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 08:16:33,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1d03f6-5f72-4e12-8ca6-28872bde02a0/bin/uautomizer-verify-84ZbGMXZE1/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