./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_03-fld_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2952ea-3e9a-4bf9-ad78-c046636df702/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2952ea-3e9a-4bf9-ad78-c046636df702/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2952ea-3e9a-4bf9-ad78-c046636df702/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2952ea-3e9a-4bf9-ad78-c046636df702/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_03-fld_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2952ea-3e9a-4bf9-ad78-c046636df702/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2952ea-3e9a-4bf9-ad78-c046636df702/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ea1691da3b3ead7461cda0fc9c55e22acbd0265310a771538fdc0f048d539edf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:27:11,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:27:11,827 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2952ea-3e9a-4bf9-ad78-c046636df702/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-23 21:27:11,833 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:27:11,834 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:27:11,863 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:27:11,864 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:27:11,865 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:27:11,866 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:27:11,866 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:27:11,867 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:27:11,868 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:27:11,869 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:27:11,869 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:27:11,870 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:27:11,870 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:27:11,871 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:27:11,872 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:27:11,872 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:27:11,873 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:27:11,874 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:27:11,876 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:27:11,877 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:27:11,878 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:27:11,879 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:27:11,879 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:27:11,880 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:27:11,880 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:27:11,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:27:11,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:27:11,882 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:27:11,883 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 21:27:11,883 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:27:11,892 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:27:11,893 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:27:11,893 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:27:11,894 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:27:11,894 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:27:11,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:11,895 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:27:11,896 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:27:11,897 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:27:11,897 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:27:11,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:27:11,898 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:27:11,898 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:27:11,899 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:27:11,899 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:27:11,899 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_0f2952ea-3e9a-4bf9-ad78-c046636df702/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2952ea-3e9a-4bf9-ad78-c046636df702/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea1691da3b3ead7461cda0fc9c55e22acbd0265310a771538fdc0f048d539edf [2023-11-23 21:27:12,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:27:12,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:27:12,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:27:12,219 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:27:12,220 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:27:12,221 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2952ea-3e9a-4bf9-ad78-c046636df702/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/goblint-regression/05-lval_ls_03-fld_rc.i [2023-11-23 21:27:15,502 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:27:15,775 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:27:15,775 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2952ea-3e9a-4bf9-ad78-c046636df702/sv-benchmarks/c/goblint-regression/05-lval_ls_03-fld_rc.i [2023-11-23 21:27:15,793 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2952ea-3e9a-4bf9-ad78-c046636df702/bin/utaipan-verify-mE87zJ7Ire/data/15b0ff270/b420952aa352468ba48d0ea83e2acf7b/FLAG291da81f5 [2023-11-23 21:27:15,810 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2952ea-3e9a-4bf9-ad78-c046636df702/bin/utaipan-verify-mE87zJ7Ire/data/15b0ff270/b420952aa352468ba48d0ea83e2acf7b [2023-11-23 21:27:15,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:27:15,815 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:27:15,817 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:15,817 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:27:15,823 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:27:15,824 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:15" (1/1) ... [2023-11-23 21:27:15,826 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e28cb85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:15, skipping insertion in model container [2023-11-23 21:27:15,826 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:15" (1/1) ... [2023-11-23 21:27:15,879 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:27:16,263 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:16,280 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:27:16,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:16,375 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:27:16,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:16 WrapperNode [2023-11-23 21:27:16,376 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:16,377 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:16,377 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:27:16,378 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:27:16,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:16" (1/1) ... [2023-11-23 21:27:16,419 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:16" (1/1) ... [2023-11-23 21:27:16,457 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2023-11-23 21:27:16,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:16,458 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:27:16,459 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:27:16,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:27:16,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:16" (1/1) ... [2023-11-23 21:27:16,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:16" (1/1) ... [2023-11-23 21:27:16,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:16" (1/1) ... [2023-11-23 21:27:16,478 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:16" (1/1) ... [2023-11-23 21:27:16,486 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:16" (1/1) ... [2023-11-23 21:27:16,488 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:16" (1/1) ... [2023-11-23 21:27:16,490 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:16" (1/1) ... [2023-11-23 21:27:16,503 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:16" (1/1) ... [2023-11-23 21:27:16,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:27:16,507 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:27:16,507 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:27:16,508 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:27:16,509 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:16" (1/1) ... [2023-11-23 21:27:16,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:16,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2952ea-3e9a-4bf9-ad78-c046636df702/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:27:16,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2952ea-3e9a-4bf9-ad78-c046636df702/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:27:16,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2952ea-3e9a-4bf9-ad78-c046636df702/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:27:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:27:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-23 21:27:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:27:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:27:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-23 21:27:16,614 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-23 21:27:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:27:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:27:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-23 21:27:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:27:16,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:27:16,633 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 21:27:16,791 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:27:16,793 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:27:16,980 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:27:17,010 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:27:17,011 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:27:17,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:17 BoogieIcfgContainer [2023-11-23 21:27:17,013 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:27:17,016 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:27:17,016 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:27:17,020 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:27:17,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:27:15" (1/3) ... [2023-11-23 21:27:17,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4590af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:17, skipping insertion in model container [2023-11-23 21:27:17,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:16" (2/3) ... [2023-11-23 21:27:17,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4590af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:17, skipping insertion in model container [2023-11-23 21:27:17,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:17" (3/3) ... [2023-11-23 21:27:17,024 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_03-fld_rc.i [2023-11-23 21:27:17,035 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 21:27:17,048 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:27:17,048 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-23 21:27:17,048 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 21:27:17,116 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 21:27:17,160 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 66 transitions, 136 flow [2023-11-23 21:27:17,238 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 403 states, 395 states have (on average 1.870886075949367) internal successors, (739), 402 states have internal predecessors, (739), 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) [2023-11-23 21:27:17,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:27:17,273 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@3c2fe106, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:27:17,273 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-23 21:27:17,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 403 states, 395 states have (on average 1.870886075949367) internal successors, (739), 402 states have internal predecessors, (739), 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) [2023-11-23 21:27:17,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 21:27:17,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:17,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:17,288 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-23 21:27:17,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:17,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1204247667, now seen corresponding path program 1 times [2023-11-23 21:27:17,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:27:17,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774552600] [2023-11-23 21:27:17,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:17,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:27:17,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:17,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:27:17,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:27:17,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774552600] [2023-11-23 21:27:17,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774552600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:17,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:27:17,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:27:17,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263375238] [2023-11-23 21:27:17,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:17,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:27:17,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:27:17,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:27:17,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:27:17,718 INFO L87 Difference]: Start difference. First operand has 403 states, 395 states have (on average 1.870886075949367) internal successors, (739), 402 states have internal predecessors, (739), 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) Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-11-23 21:27:17,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:17,882 INFO L93 Difference]: Finished difference Result 493 states and 909 transitions. [2023-11-23 21:27:17,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:27:17,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) Word has length 29 [2023-11-23 21:27:17,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:17,908 INFO L225 Difference]: With dead ends: 493 [2023-11-23 21:27:17,908 INFO L226 Difference]: Without dead ends: 493 [2023-11-23 21:27:17,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:27:17,914 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 35 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:17,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 127 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:27:17,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2023-11-23 21:27:17,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 405. [2023-11-23 21:27:18,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 398 states have (on average 1.8618090452261307) internal successors, (741), 404 states have internal predecessors, (741), 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) [2023-11-23 21:27:18,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 741 transitions. [2023-11-23 21:27:18,015 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 741 transitions. Word has length 29 [2023-11-23 21:27:18,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:18,018 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 741 transitions. [2023-11-23 21:27:18,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-11-23 21:27:18,019 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 741 transitions. [2023-11-23 21:27:18,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-23 21:27:18,021 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:18,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:18,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:27:18,022 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-23 21:27:18,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:18,023 INFO L85 PathProgramCache]: Analyzing trace with hash -876061810, now seen corresponding path program 1 times [2023-11-23 21:27:18,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:27:18,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234461929] [2023-11-23 21:27:18,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:18,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:27:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:18,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:27:18,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:27:18,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234461929] [2023-11-23 21:27:18,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234461929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:18,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:27:18,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:27:18,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826458726] [2023-11-23 21:27:18,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:18,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:27:18,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:27:18,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:27:18,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:27:18,157 INFO L87 Difference]: Start difference. First operand 405 states and 741 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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) [2023-11-23 21:27:18,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:18,249 INFO L93 Difference]: Finished difference Result 429 states and 775 transitions. [2023-11-23 21:27:18,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:27:18,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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) Word has length 34 [2023-11-23 21:27:18,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:18,253 INFO L225 Difference]: With dead ends: 429 [2023-11-23 21:27:18,254 INFO L226 Difference]: Without dead ends: 319 [2023-11-23 21:27:18,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:27:18,256 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 23 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:18,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 121 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:27:18,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-11-23 21:27:18,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 305. [2023-11-23 21:27:18,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 299 states have (on average 1.7692307692307692) internal successors, (529), 304 states have internal predecessors, (529), 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) [2023-11-23 21:27:18,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 529 transitions. [2023-11-23 21:27:18,281 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 529 transitions. Word has length 34 [2023-11-23 21:27:18,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:18,282 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 529 transitions. [2023-11-23 21:27:18,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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) [2023-11-23 21:27:18,282 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 529 transitions. [2023-11-23 21:27:18,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 21:27:18,284 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:18,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:18,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:27:18,285 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-23 21:27:18,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:18,286 INFO L85 PathProgramCache]: Analyzing trace with hash 129701290, now seen corresponding path program 1 times [2023-11-23 21:27:18,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:27:18,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548554382] [2023-11-23 21:27:18,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:18,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:27:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:18,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:27:18,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:27:18,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548554382] [2023-11-23 21:27:18,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548554382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:18,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:27:18,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:27:18,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591355187] [2023-11-23 21:27:18,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:18,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:27:18,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:27:18,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:27:18,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:27:18,412 INFO L87 Difference]: Start difference. First operand 305 states and 529 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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) [2023-11-23 21:27:18,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:18,492 INFO L93 Difference]: Finished difference Result 308 states and 523 transitions. [2023-11-23 21:27:18,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:27:18,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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) Word has length 35 [2023-11-23 21:27:18,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:18,495 INFO L225 Difference]: With dead ends: 308 [2023-11-23 21:27:18,497 INFO L226 Difference]: Without dead ends: 231 [2023-11-23 21:27:18,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:27:18,499 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 18 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:18,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 113 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:27:18,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-11-23 21:27:18,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2023-11-23 21:27:18,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 227 states have (on average 1.6079295154185023) internal successors, (365), 230 states have internal predecessors, (365), 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) [2023-11-23 21:27:18,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 365 transitions. [2023-11-23 21:27:18,531 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 365 transitions. Word has length 35 [2023-11-23 21:27:18,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:18,532 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 365 transitions. [2023-11-23 21:27:18,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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) [2023-11-23 21:27:18,532 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 365 transitions. [2023-11-23 21:27:18,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 21:27:18,535 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:18,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:18,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:27:18,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-23 21:27:18,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:18,537 INFO L85 PathProgramCache]: Analyzing trace with hash -81803294, now seen corresponding path program 1 times [2023-11-23 21:27:18,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:27:18,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834893490] [2023-11-23 21:27:18,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:18,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:27:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:27:18,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:27:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:27:18,619 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:27:18,619 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:27:18,621 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-11-23 21:27:18,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-11-23 21:27:18,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2023-11-23 21:27:18,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-11-23 21:27:18,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-11-23 21:27:18,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-11-23 21:27:18,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-11-23 21:27:18,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:27:18,628 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-23 21:27:18,635 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-23 21:27:18,636 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:27:18,679 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated [2023-11-23 21:27:18,681 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post3 could not be translated [2023-11-23 21:27:18,681 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-23 21:27:18,682 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post3 could not be translated [2023-11-23 21:27:18,682 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-23 21:27:18,683 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post3 could not be translated [2023-11-23 21:27:18,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:27:18 BasicIcfg [2023-11-23 21:27:18,700 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:27:18,701 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:27:18,702 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:27:18,702 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:27:18,703 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:17" (3/4) ... [2023-11-23 21:27:18,706 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:27:18,707 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:27:18,708 INFO L158 Benchmark]: Toolchain (without parser) took 2892.88ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 82.6MB in the beginning and 97.5MB in the end (delta: -14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:27:18,709 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 130.0MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:27:18,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.50ms. Allocated memory is still 130.0MB. Free memory was 82.1MB in the beginning and 62.9MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:27:18,710 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.75ms. Allocated memory is still 130.0MB. Free memory was 62.9MB in the beginning and 60.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:27:18,711 INFO L158 Benchmark]: Boogie Preprocessor took 47.88ms. Allocated memory is still 130.0MB. Free memory was 60.8MB in the beginning and 59.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:27:18,711 INFO L158 Benchmark]: RCFGBuilder took 506.01ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 59.5MB in the beginning and 118.2MB in the end (delta: -58.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2023-11-23 21:27:18,712 INFO L158 Benchmark]: TraceAbstraction took 1683.77ms. Allocated memory is still 157.3MB. Free memory was 117.4MB in the beginning and 98.5MB in the end (delta: 18.9MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2023-11-23 21:27:18,713 INFO L158 Benchmark]: Witness Printer took 5.92ms. Allocated memory is still 157.3MB. Free memory was 98.5MB in the beginning and 97.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:27:18,716 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 130.0MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 559.50ms. Allocated memory is still 130.0MB. Free memory was 82.1MB in the beginning and 62.9MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.75ms. Allocated memory is still 130.0MB. Free memory was 62.9MB in the beginning and 60.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.88ms. Allocated memory is still 130.0MB. Free memory was 60.8MB in the beginning and 59.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 506.01ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 59.5MB in the beginning and 118.2MB in the end (delta: -58.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1683.77ms. Allocated memory is still 157.3MB. Free memory was 117.4MB in the beginning and 98.5MB in the end (delta: 18.9MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * Witness Printer took 5.92ms. Allocated memory is still 157.3MB. Free memory was 98.5MB in the beginning and 97.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post3 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 686]: Data race detected [2023-11-23 21:27:18,738 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated [2023-11-23 21:27:18,738 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post3 could not be translated [2023-11-23 21:27:18,738 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-23 21:27:18,739 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post3 could not be translated [2023-11-23 21:27:18,739 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-23 21:27:18,739 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post3 could not be translated [2023-11-23 21:27:18,748 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated [2023-11-23 21:27:18,749 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post3 could not be translated [2023-11-23 21:27:18,749 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-23 21:27:18,750 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post3 could not be translated [2023-11-23 21:27:18,750 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-23 21:27:18,750 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post3 could not be translated Data race detected The following path leads to a data race: [L679] 0 int glob; VAL [glob=0] [L680-L683] 0 struct { pthread_mutex_t x; pthread_mutex_t y; } m; VAL [glob=0, m={1:0}] [L693] 0 pthread_t id; VAL [glob=0, id={2:0}, m={1:0}] [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, id={2:0}, m={1:0}] [L686] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, m={1:0}] [L696] 0 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, id={2:0}, m={1:0}] [L686] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, m={1:0}] Now there is a data race on ~glob~0 between C: glob++ [696] and C: glob++ [686] - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 361 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 137 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 224 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=405occurred in iteration=1, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 102 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 101 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-23 21:27:18,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2952ea-3e9a-4bf9-ad78-c046636df702/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE