./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-match-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/chl-match-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0 --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77faa562cc80dab159af187984ab1ce484b13225711253aedc5512d7a84dfd3f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 14:19:04,965 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 14:19:05,074 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-02 14:19:05,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 14:19:05,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 14:19:05,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 14:19:05,132 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 14:19:05,133 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 14:19:05,134 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 14:19:05,135 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 14:19:05,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 14:19:05,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 14:19:05,138 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 14:19:05,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 14:19:05,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 14:19:05,139 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 14:19:05,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 14:19:05,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 14:19:05,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 14:19:05,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 14:19:05,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 14:19:05,145 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 14:19:05,145 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 14:19:05,146 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 14:19:05,146 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 14:19:05,146 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 14:19:05,148 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 14:19:05,149 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 14:19:05,149 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 14:19:05,149 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 14:19:05,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 14:19:05,150 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 14:19:05,151 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 14:19:05,152 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 14:19:05,152 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-02 14:19:05,153 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-02 14:19:05,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 14:19:05,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 14:19:05,153 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-02 14:19:05,154 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-02 14:19:05,154 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-02 14:19:05,154 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77faa562cc80dab159af187984ab1ce484b13225711253aedc5512d7a84dfd3f [2024-11-02 14:19:05,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 14:19:05,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 14:19:05,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 14:19:05,475 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 14:19:05,475 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 14:19:05,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/../../sv-benchmarks/c/weaver/chl-match-symm.wvr.c Unable to find full path for "g++" [2024-11-02 14:19:07,561 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 14:19:07,805 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 14:19:07,805 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/sv-benchmarks/c/weaver/chl-match-symm.wvr.c [2024-11-02 14:19:07,814 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/data/3faf61fb7/de427b4c088b4b13b455737e6228afe1/FLAGde3d80bb9 [2024-11-02 14:19:07,830 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/data/3faf61fb7/de427b4c088b4b13b455737e6228afe1 [2024-11-02 14:19:07,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 14:19:07,834 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 14:19:07,835 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 14:19:07,835 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 14:19:07,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 14:19:07,840 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 02:19:07" (1/1) ... [2024-11-02 14:19:07,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63636b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:07, skipping insertion in model container [2024-11-02 14:19:07,842 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 02:19:07" (1/1) ... [2024-11-02 14:19:07,875 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 14:19:08,083 WARN L251 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_37e8f2e1-ef4c-4057-9f39-31e325730021/sv-benchmarks/c/weaver/chl-match-symm.wvr.c[2610,2623] [2024-11-02 14:19:08,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 14:19:08,104 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 14:19:08,127 WARN L251 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_37e8f2e1-ef4c-4057-9f39-31e325730021/sv-benchmarks/c/weaver/chl-match-symm.wvr.c[2610,2623] [2024-11-02 14:19:08,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 14:19:08,158 INFO L204 MainTranslator]: Completed translation [2024-11-02 14:19:08,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:08 WrapperNode [2024-11-02 14:19:08,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 14:19:08,164 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 14:19:08,164 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 14:19:08,164 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 14:19:08,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:08" (1/1) ... [2024-11-02 14:19:08,177 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:08" (1/1) ... [2024-11-02 14:19:08,209 INFO L138 Inliner]: procedures = 21, calls = 17, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 143 [2024-11-02 14:19:08,209 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 14:19:08,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 14:19:08,210 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 14:19:08,210 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 14:19:08,221 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:08" (1/1) ... [2024-11-02 14:19:08,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:08" (1/1) ... [2024-11-02 14:19:08,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:08" (1/1) ... [2024-11-02 14:19:08,224 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:08" (1/1) ... [2024-11-02 14:19:08,229 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:08" (1/1) ... [2024-11-02 14:19:08,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:08" (1/1) ... [2024-11-02 14:19:08,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:08" (1/1) ... [2024-11-02 14:19:08,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:08" (1/1) ... [2024-11-02 14:19:08,237 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 14:19:08,239 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 14:19:08,239 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 14:19:08,239 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 14:19:08,240 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:08" (1/1) ... [2024-11-02 14:19:08,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 14:19:08,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/z3 [2024-11-02 14:19:08,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 14:19:08,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 14:19:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 14:19:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-02 14:19:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-02 14:19:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-02 14:19:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-02 14:19:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 14:19:08,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 14:19:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 14:19:08,327 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-02 14:19:08,443 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 14:19:08,445 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 14:19:09,048 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 14:19:09,052 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 14:19:09,478 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 14:19:09,481 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 14:19:09,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 02:19:09 BoogieIcfgContainer [2024-11-02 14:19:09,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 14:19:09,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 14:19:09,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 14:19:09,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 14:19:09,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 02:19:07" (1/3) ... [2024-11-02 14:19:09,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b1786e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 02:19:09, skipping insertion in model container [2024-11-02 14:19:09,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:08" (2/3) ... [2024-11-02 14:19:09,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b1786e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 02:19:09, skipping insertion in model container [2024-11-02 14:19:09,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 02:19:09" (3/3) ... [2024-11-02 14:19:09,493 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-symm.wvr.c [2024-11-02 14:19:09,513 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 14:19:09,513 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 14:19:09,514 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 14:19:09,574 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-02 14:19:09,636 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:19:09,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-02 14:19:09,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/z3 [2024-11-02 14:19:09,639 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-02 14:19:09,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-02 14:19:09,674 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:19:09,689 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-02 14:19:09,698 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=PARTIAL_ORDER_FA, 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;@3e42071a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:19:09,698 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-02 14:19:11,060 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-02 14:19:11,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:19:11,066 INFO L85 PathProgramCache]: Analyzing trace with hash -427375988, now seen corresponding path program 1 times [2024-11-02 14:19:11,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:19:11,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016623144] [2024-11-02 14:19:11,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:19:11,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:19:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:19:12,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:19:12,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:19:12,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016623144] [2024-11-02 14:19:12,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016623144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:19:12,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:19:12,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 14:19:12,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630329478] [2024-11-02 14:19:12,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:19:12,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 14:19:12,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:19:12,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 14:19:12,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 14:19:12,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:12,287 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:19:12,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 14:19:12,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:13,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 14:19:13,299 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-02 14:19:13,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-11-02 14:19:13,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-02 14:19:13,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 14:19:13,313 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 14:19:13,317 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-02 14:19:13,317 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 14:19:13,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-11-02 14:19:13,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 02:19:13 BasicIcfg [2024-11-02 14:19:13,364 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 14:19:13,365 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 14:19:13,365 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 14:19:13,365 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 14:19:13,366 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 02:19:09" (3/4) ... [2024-11-02 14:19:13,370 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-02 14:19:13,378 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-02 14:19:13,389 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-02 14:19:13,399 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 73 nodes and edges [2024-11-02 14:19:13,399 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-02 14:19:13,400 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-02 14:19:13,404 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-02 14:19:13,520 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/witness.graphml [2024-11-02 14:19:13,521 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/witness.yml [2024-11-02 14:19:13,521 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 14:19:13,522 INFO L158 Benchmark]: Toolchain (without parser) took 5688.11ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 115.1MB in the beginning and 127.7MB in the end (delta: -12.6MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. [2024-11-02 14:19:13,522 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 109.1MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 14:19:13,523 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.88ms. Allocated memory is still 144.7MB. Free memory was 114.8MB in the beginning and 101.8MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-02 14:19:13,523 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.45ms. Allocated memory is still 144.7MB. Free memory was 101.8MB in the beginning and 99.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 14:19:13,524 INFO L158 Benchmark]: Boogie Preprocessor took 27.79ms. Allocated memory is still 144.7MB. Free memory was 99.3MB in the beginning and 98.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 14:19:13,524 INFO L158 Benchmark]: RCFGBuilder took 1243.56ms. Allocated memory is still 144.7MB. Free memory was 98.0MB in the beginning and 84.5MB in the end (delta: 13.6MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2024-11-02 14:19:13,525 INFO L158 Benchmark]: TraceAbstraction took 3880.02ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 83.8MB in the beginning and 132.7MB in the end (delta: -48.9MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. [2024-11-02 14:19:13,525 INFO L158 Benchmark]: Witness Printer took 156.26ms. Allocated memory is still 209.7MB. Free memory was 132.7MB in the beginning and 127.7MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 14:19:13,527 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 109.1MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.88ms. Allocated memory is still 144.7MB. Free memory was 114.8MB in the beginning and 101.8MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.45ms. Allocated memory is still 144.7MB. Free memory was 101.8MB in the beginning and 99.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.79ms. Allocated memory is still 144.7MB. Free memory was 99.3MB in the beginning and 98.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1243.56ms. Allocated memory is still 144.7MB. Free memory was 98.0MB in the beginning and 84.5MB in the end (delta: 13.6MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3880.02ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 83.8MB in the beginning and 132.7MB in the end (delta: -48.9MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. * Witness Printer took 156.26ms. Allocated memory is still 209.7MB. Free memory was 132.7MB in the beginning and 127.7MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 8, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 8, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 8, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 8, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 46, independent: 44, independent conditional: 0, independent unconditional: 44, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 0, independent unconditional: 44, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 38, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 38, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2198, independent: 1274, independent conditional: 0, independent unconditional: 1274, dependent: 923, dependent conditional: 0, dependent unconditional: 923, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 46, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 38, unknown conditional: 0, unknown unconditional: 38] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8, Maximal queried relation: 0, Independence queries for same thread: 0, Persistent sets #1 benchmarks: Persistent set computation time: 2.2s, Number of persistent set computation: 13, Number of trivial persistent sets: 11, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 38, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 8, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 8, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 8, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 8, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 46, independent: 44, independent conditional: 0, independent unconditional: 44, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 0, independent unconditional: 44, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 38, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 38, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2198, independent: 1274, independent conditional: 0, independent unconditional: 1274, dependent: 923, dependent conditional: 0, dependent unconditional: 923, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 46, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 38, unknown conditional: 0, unknown unconditional: 38] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8, Maximal queried relation: 0, Independence queries for same thread: 0 - PositiveResult [Line: 77]: 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 21 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 2.4s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.9s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 311 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-02 14:19:13,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e8f2e1-ef4c-4057-9f39-31e325730021/bin/ugemcutter-verify-SyDpkB78L0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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