./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/test-easy7.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d5744a-7308-43f0-9e6c-4c2b48688ef5/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d5744a-7308-43f0-9e6c-4c2b48688ef5/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_90d5744a-7308-43f0-9e6c-4c2b48688ef5/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d5744a-7308-43f0-9e6c-4c2b48688ef5/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/test-easy7.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d5744a-7308-43f0-9e6c-4c2b48688ef5/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_90d5744a-7308-43f0-9e6c-4c2b48688ef5/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 2089b8408f47d976db10454bec1f56d65e439056bc0b2c5e33c1e775793bdc1f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:31:24,032 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:31:24,103 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d5744a-7308-43f0-9e6c-4c2b48688ef5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:31:24,109 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:31:24,109 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:31:24,135 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:31:24,136 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:31:24,136 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:31:24,136 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:31:24,136 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:31:24,137 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:31:24,137 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:31:24,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:31:24,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:31:24,138 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:31:24,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:31:24,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:31:24,138 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:31:24,138 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:31:24,138 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:31:24,138 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:31:24,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:31:24,139 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:31:24,139 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:31:24,139 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:31:24,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:31:24,139 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:31:24,139 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:31:24,139 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:31:24,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:31:24,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:31:24,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:31:24,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:31:24,140 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:31:24,140 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:31:24,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:31:24,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:31:24,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:31:24,141 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:31:24,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:31:24,141 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:31:24,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:31:24,141 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:31:24,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:31:24,141 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:31:24,141 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:31:24,142 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:31:24,142 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:31:24,142 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_90d5744a-7308-43f0-9e6c-4c2b48688ef5/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 -> 2089b8408f47d976db10454bec1f56d65e439056bc0b2c5e33c1e775793bdc1f [2024-12-02 13:31:24,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:31:24,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:31:24,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:31:24,417 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:31:24,417 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:31:24,419 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d5744a-7308-43f0-9e6c-4c2b48688ef5/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/weaver/test-easy7.wvr.c [2024-12-02 13:31:27,760 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d5744a-7308-43f0-9e6c-4c2b48688ef5/bin/uautomizer-verify-84ZbGMXZE1/data/f29f06020/b8e8584fca23407b9e4d2aa5a9582d05/FLAG85471da92 [2024-12-02 13:31:27,997 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:31:27,997 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d5744a-7308-43f0-9e6c-4c2b48688ef5/sv-benchmarks/c/weaver/test-easy7.wvr.c [2024-12-02 13:31:28,007 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d5744a-7308-43f0-9e6c-4c2b48688ef5/bin/uautomizer-verify-84ZbGMXZE1/data/f29f06020/b8e8584fca23407b9e4d2aa5a9582d05/FLAG85471da92 [2024-12-02 13:31:28,034 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d5744a-7308-43f0-9e6c-4c2b48688ef5/bin/uautomizer-verify-84ZbGMXZE1/data/f29f06020/b8e8584fca23407b9e4d2aa5a9582d05 [2024-12-02 13:31:28,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:31:28,039 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:31:28,040 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:31:28,040 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:31:28,046 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:31:28,047 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:31:28" (1/1) ... [2024-12-02 13:31:28,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b72cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:28, skipping insertion in model container [2024-12-02 13:31:28,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:31:28" (1/1) ... [2024-12-02 13:31:28,067 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:31:28,248 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_90d5744a-7308-43f0-9e6c-4c2b48688ef5/sv-benchmarks/c/weaver/test-easy7.wvr.c[1898,1911] [2024-12-02 13:31:28,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:31:28,264 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:31:28,283 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_90d5744a-7308-43f0-9e6c-4c2b48688ef5/sv-benchmarks/c/weaver/test-easy7.wvr.c[1898,1911] [2024-12-02 13:31:28,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:31:28,302 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:31:28,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:28 WrapperNode [2024-12-02 13:31:28,303 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:31:28,304 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:31:28,304 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:31:28,304 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:31:28,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:28" (1/1) ... [2024-12-02 13:31:28,320 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:28" (1/1) ... [2024-12-02 13:31:28,339 INFO L138 Inliner]: procedures = 20, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 43 [2024-12-02 13:31:28,340 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:31:28,340 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:31:28,340 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:31:28,341 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:31:28,351 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:28" (1/1) ... [2024-12-02 13:31:28,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:28" (1/1) ... [2024-12-02 13:31:28,353 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:28" (1/1) ... [2024-12-02 13:31:28,367 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 13:31:28,368 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:28" (1/1) ... [2024-12-02 13:31:28,368 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:28" (1/1) ... [2024-12-02 13:31:28,372 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:28" (1/1) ... [2024-12-02 13:31:28,373 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:28" (1/1) ... [2024-12-02 13:31:28,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:28" (1/1) ... [2024-12-02 13:31:28,376 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:28" (1/1) ... [2024-12-02 13:31:28,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:28" (1/1) ... [2024-12-02 13:31:28,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:31:28,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:31:28,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:31:28,380 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:31:28,381 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:28" (1/1) ... [2024-12-02 13:31:28,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:31:28,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d5744a-7308-43f0-9e6c-4c2b48688ef5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:31:28,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d5744a-7308-43f0-9e6c-4c2b48688ef5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:31:28,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d5744a-7308-43f0-9e6c-4c2b48688ef5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:31:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:31:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-02 13:31:28,454 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-02 13:31:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-02 13:31:28,454 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-02 13:31:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:31:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:31:28,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:31:28,455 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 13:31:28,558 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:31:28,561 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:31:28,733 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 13:31:28,734 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:31:28,866 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:31:28,866 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 13:31:28,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:31:28 BoogieIcfgContainer [2024-12-02 13:31:28,866 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:31:28,869 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:31:28,869 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:31:28,875 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:31:28,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:31:28" (1/3) ... [2024-12-02 13:31:28,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e82cead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:31:28, skipping insertion in model container [2024-12-02 13:31:28,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:28" (2/3) ... [2024-12-02 13:31:28,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e82cead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:31:28, skipping insertion in model container [2024-12-02 13:31:28,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:31:28" (3/3) ... [2024-12-02 13:31:28,878 INFO L128 eAbstractionObserver]: Analyzing ICFG test-easy7.wvr.c [2024-12-02 13:31:28,896 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:31:28,897 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-easy7.wvr.c that has 3 procedures, 15 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 13:31:28,898 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 13:31:28,939 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-12-02 13:31:28,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 21 places, 14 transitions, 42 flow [2024-12-02 13:31:29,013 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-12-02 13:31:29,016 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-02 13:31:29,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 12 events. 0/12 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-12-02 13:31:29,018 INFO L82 GeneralOperation]: Start removeDead. Operand has 21 places, 14 transitions, 42 flow [2024-12-02 13:31:29,022 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 18 places, 11 transitions, 34 flow [2024-12-02 13:31:29,030 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:31:29,044 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;@516f645, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:31:29,044 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-12-02 13:31:29,053 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 13:31:29,053 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-12-02 13:31:29,053 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-02 13:31:29,053 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:31:29,054 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:31:29,054 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-02 13:31:29,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:31:29,059 INFO L85 PathProgramCache]: Analyzing trace with hash -779627816, now seen corresponding path program 1 times [2024-12-02 13:31:29,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:31:29,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306328841] [2024-12-02 13:31:29,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:31:29,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:31:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:31:29,603 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 13:31:29,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:31:29,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306328841] [2024-12-02 13:31:29,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306328841] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:31:29,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:31:29,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:31:29,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617774530] [2024-12-02 13:31:29,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:31:29,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:31:29,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:31:29,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:31:29,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:31:29,649 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 14 [2024-12-02 13:31:29,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 13:31:29,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:31:29,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 14 [2024-12-02 13:31:29,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:31:29,743 INFO L124 PetriNetUnfolderBase]: 7/29 cut-off events. [2024-12-02 13:31:29,743 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-12-02 13:31:29,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 29 events. 7/29 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 2 based on Foata normal form. 1/30 useless extension candidates. Maximal degree in co-relation 42. Up to 16 conditions per place. [2024-12-02 13:31:29,745 INFO L140 encePairwiseOnDemand]: 10/14 looper letters, 11 selfloop transitions, 2 changer transitions 5/19 dead transitions. [2024-12-02 13:31:29,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 19 transitions, 95 flow [2024-12-02 13:31:29,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:31:29,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 13:31:29,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2024-12-02 13:31:29,762 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2024-12-02 13:31:29,764 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 34 flow. Second operand 4 states and 31 transitions. [2024-12-02 13:31:29,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 19 transitions, 95 flow [2024-12-02 13:31:29,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 19 transitions, 81 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-12-02 13:31:29,773 INFO L231 Difference]: Finished difference. Result has 18 places, 11 transitions, 36 flow [2024-12-02 13:31:29,776 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=14, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=36, PETRI_PLACES=18, PETRI_TRANSITIONS=11} [2024-12-02 13:31:29,780 INFO L279 CegarLoopForPetriNet]: 18 programPoint places, 0 predicate places. [2024-12-02 13:31:29,780 INFO L471 AbstractCegarLoop]: Abstraction has has 18 places, 11 transitions, 36 flow [2024-12-02 13:31:29,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 13:31:29,781 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:31:29,781 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:31:29,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:31:29,781 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-02 13:31:29,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:31:29,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1742179160, now seen corresponding path program 2 times [2024-12-02 13:31:29,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:31:29,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064493976] [2024-12-02 13:31:29,783 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:31:29,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:31:29,813 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 13:31:29,814 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:31:29,996 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 13:31:29,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:31:29,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064493976] [2024-12-02 13:31:29,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064493976] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:31:29,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:31:29,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:31:29,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428280619] [2024-12-02 13:31:29,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:31:29,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:31:29,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:31:29,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:31:29,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:31:29,999 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 14 [2024-12-02 13:31:29,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 36 flow. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 13:31:30,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:31:30,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 14 [2024-12-02 13:31:30,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:31:30,057 INFO L124 PetriNetUnfolderBase]: 5/19 cut-off events. [2024-12-02 13:31:30,057 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-12-02 13:31:30,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 19 events. 5/19 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 1 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 14. Up to 11 conditions per place. [2024-12-02 13:31:30,057 INFO L140 encePairwiseOnDemand]: 10/14 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2024-12-02 13:31:30,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 13 transitions, 66 flow [2024-12-02 13:31:30,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:31:30,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 13:31:30,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2024-12-02 13:31:30,059 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2024-12-02 13:31:30,059 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 36 flow. Second operand 4 states and 26 transitions. [2024-12-02 13:31:30,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 13 transitions, 66 flow [2024-12-02 13:31:30,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 13 transitions, 62 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 13:31:30,060 INFO L231 Difference]: Finished difference. Result has 16 places, 0 transitions, 0 flow [2024-12-02 13:31:30,060 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=14, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=16, PETRI_TRANSITIONS=0} [2024-12-02 13:31:30,061 INFO L279 CegarLoopForPetriNet]: 18 programPoint places, -2 predicate places. [2024-12-02 13:31:30,061 INFO L471 AbstractCegarLoop]: Abstraction has has 16 places, 0 transitions, 0 flow [2024-12-02 13:31:30,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 13:31:30,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-12-02 13:31:30,065 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-12-02 13:31:30,065 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-12-02 13:31:30,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:31:30,065 INFO L422 BasicCegarLoop]: Path program histogram: [2] [2024-12-02 13:31:30,070 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-02 13:31:30,070 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 13:31:30,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:31:30 BasicIcfg [2024-12-02 13:31:30,077 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 13:31:30,078 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:31:30,078 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:31:30,078 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:31:30,079 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:31:28" (3/4) ... [2024-12-02 13:31:30,081 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 13:31:30,085 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-12-02 13:31:30,085 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-12-02 13:31:30,089 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2024-12-02 13:31:30,090 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-12-02 13:31:30,090 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-02 13:31:30,090 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-02 13:31:30,168 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d5744a-7308-43f0-9e6c-4c2b48688ef5/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 13:31:30,169 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d5744a-7308-43f0-9e6c-4c2b48688ef5/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 13:31:30,169 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:31:30,170 INFO L158 Benchmark]: Toolchain (without parser) took 2130.96ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 57.7MB in the end (delta: 60.4MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. [2024-12-02 13:31:30,170 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:31:30,170 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.13ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 106.7MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:31:30,171 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.86ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 105.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:31:30,171 INFO L158 Benchmark]: Boogie Preprocessor took 38.54ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 104.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:31:30,171 INFO L158 Benchmark]: RCFGBuilder took 486.91ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 83.4MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 13:31:30,172 INFO L158 Benchmark]: TraceAbstraction took 1207.87ms. Allocated memory is still 142.6MB. Free memory was 82.7MB in the beginning and 62.2MB in the end (delta: 20.5MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2024-12-02 13:31:30,172 INFO L158 Benchmark]: Witness Printer took 91.08ms. Allocated memory is still 142.6MB. Free memory was 62.2MB in the beginning and 57.7MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:31:30,174 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.13ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 106.7MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.86ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 105.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.54ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 104.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 486.91ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 83.4MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1207.87ms. Allocated memory is still 142.6MB. Free memory was 82.7MB in the beginning and 62.2MB in the end (delta: 20.5MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * Witness Printer took 91.08ms. Allocated memory is still 142.6MB. Free memory was 62.2MB in the beginning and 57.7MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 72]: 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 5 procedures, 21 locations, 3 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: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 62 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=1, InterpolantAutomatonStates: 8, 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, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be correct! [2024-12-02 13:31:30,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d5744a-7308-43f0-9e6c-4c2b48688ef5/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