./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_70f1d58f-932d-45a3-bef2-c7d92e1b6668/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70f1d58f-932d-45a3-bef2-c7d92e1b6668/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70f1d58f-932d-45a3-bef2-c7d92e1b6668/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70f1d58f-932d-45a3-bef2-c7d92e1b6668/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70f1d58f-932d-45a3-bef2-c7d92e1b6668/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70f1d58f-932d-45a3-bef2-c7d92e1b6668/bin/utaipan-verify-nQ1chXbOIh --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 f6ac8e3fa6c8942d1934329d4aab2bad69a86bc8873927fe052914d5204c0486 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:08:34,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:08:34,978 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70f1d58f-932d-45a3-bef2-c7d92e1b6668/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-12-02 14:08:34,984 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:08:34,984 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:08:35,006 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:08:35,006 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:08:35,007 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:08:35,008 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:08:35,008 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:08:35,009 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:08:35,009 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:08:35,010 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:08:35,010 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:08:35,011 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:08:35,011 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:08:35,012 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:08:35,012 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:08:35,013 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:08:35,013 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:08:35,014 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:08:35,015 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:08:35,015 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:08:35,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:08:35,016 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:08:35,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:08:35,017 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:08:35,017 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:08:35,018 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:08:35,018 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:08:35,018 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:08:35,019 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-12-02 14:08:35,019 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 14:08:35,019 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:08:35,020 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:08:35,020 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:08:35,020 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:08:35,020 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:08:35,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:08:35,021 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:08:35,021 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:08:35,021 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:08:35,022 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:08:35,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:08:35,022 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:08:35,022 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:08:35,022 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:08:35,022 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:08:35,023 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_70f1d58f-932d-45a3-bef2-c7d92e1b6668/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70f1d58f-932d-45a3-bef2-c7d92e1b6668/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6ac8e3fa6c8942d1934329d4aab2bad69a86bc8873927fe052914d5204c0486 [2023-12-02 14:08:35,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:08:35,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:08:35,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:08:35,269 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:08:35,270 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:08:35,271 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70f1d58f-932d-45a3-bef2-c7d92e1b6668/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i [2023-12-02 14:08:37,968 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:08:38,225 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:08:38,225 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70f1d58f-932d-45a3-bef2-c7d92e1b6668/sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i [2023-12-02 14:08:38,242 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70f1d58f-932d-45a3-bef2-c7d92e1b6668/bin/utaipan-verify-nQ1chXbOIh/data/59c708d31/e97da969c6714fbb8e9da231177f3c03/FLAG30ff6e341 [2023-12-02 14:08:38,257 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70f1d58f-932d-45a3-bef2-c7d92e1b6668/bin/utaipan-verify-nQ1chXbOIh/data/59c708d31/e97da969c6714fbb8e9da231177f3c03 [2023-12-02 14:08:38,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:08:38,261 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:08:38,262 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:08:38,262 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:08:38,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:08:38,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:08:38" (1/1) ... [2023-12-02 14:08:38,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f594c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:08:38, skipping insertion in model container [2023-12-02 14:08:38,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:08:38" (1/1) ... [2023-12-02 14:08:38,332 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:08:38,721 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:08:38,734 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:08:38,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:08:38,849 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:08:38,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:08:38 WrapperNode [2023-12-02 14:08:38,849 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:08:38,851 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:08:38,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:08:38,851 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:08:38,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:08:38" (1/1) ... [2023-12-02 14:08:38,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:08:38" (1/1) ... [2023-12-02 14:08:38,898 INFO L138 Inliner]: procedures = 267, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-12-02 14:08:38,899 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:08:38,900 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:08:38,900 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:08:38,900 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:08:38,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:08:38" (1/1) ... [2023-12-02 14:08:38,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:08:38" (1/1) ... [2023-12-02 14:08:38,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:08:38" (1/1) ... [2023-12-02 14:08:38,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:08:38" (1/1) ... [2023-12-02 14:08:38,919 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:08:38" (1/1) ... [2023-12-02 14:08:38,921 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:08:38" (1/1) ... [2023-12-02 14:08:38,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:08:38" (1/1) ... [2023-12-02 14:08:38,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:08:38" (1/1) ... [2023-12-02 14:08:38,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:08:38,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:08:38,928 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:08:38,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:08:38,929 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:08:38" (1/1) ... [2023-12-02 14:08:38,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:08:38,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70f1d58f-932d-45a3-bef2-c7d92e1b6668/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:08:38,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70f1d58f-932d-45a3-bef2-c7d92e1b6668/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:08:38,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70f1d58f-932d-45a3-bef2-c7d92e1b6668/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:08:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 14:08:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 14:08:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-02 14:08:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 14:08:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-02 14:08:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:08:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-12-02 14:08:38,995 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-12-02 14:08:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:08:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:08:38,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:08:38,997 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 14:08:39,116 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:08:39,118 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:08:39,242 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:08:39,266 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:08:39,267 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 14:08:39,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:08:39 BoogieIcfgContainer [2023-12-02 14:08:39,269 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:08:39,272 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:08:39,272 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:08:39,275 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:08:39,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:08:38" (1/3) ... [2023-12-02 14:08:39,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a629960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:08:39, skipping insertion in model container [2023-12-02 14:08:39,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:08:38" (2/3) ... [2023-12-02 14:08:39,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a629960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:08:39, skipping insertion in model container [2023-12-02 14:08:39,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:08:39" (3/3) ... [2023-12-02 14:08:39,278 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_16-ps_add1_rc.i [2023-12-02 14:08:39,286 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 14:08:39,294 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:08:39,294 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-02 14:08:39,295 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 14:08:39,337 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 14:08:39,364 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 78 transitions, 160 flow [2023-12-02 14:08:39,416 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 593 states, 585 states have (on average 1.970940170940171) internal successors, (1153), 592 states have internal predecessors, (1153), 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) [2023-12-02 14:08:39,431 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:08:39,436 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;@5f7d0f6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:08:39,436 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-02 14:08:39,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 593 states, 585 states have (on average 1.970940170940171) internal successors, (1153), 592 states have internal predecessors, (1153), 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) [2023-12-02 14:08:39,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 14:08:39,445 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:08:39,446 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] [2023-12-02 14:08:39,446 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)] === [2023-12-02 14:08:39,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:08:39,451 INFO L85 PathProgramCache]: Analyzing trace with hash -51463563, now seen corresponding path program 1 times [2023-12-02 14:08:39,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:08:39,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899606159] [2023-12-02 14:08:39,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:08:39,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:08:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:08:39,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:08:39,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:08:39,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899606159] [2023-12-02 14:08:39,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899606159] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:08:39,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:08:39,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:08:39,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481645207] [2023-12-02 14:08:39,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:08:39,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:08:39,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:08:39,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:08:39,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:08:39,722 INFO L87 Difference]: Start difference. First operand has 593 states, 585 states have (on average 1.970940170940171) internal successors, (1153), 592 states have internal predecessors, (1153), 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 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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) [2023-12-02 14:08:39,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:08:39,809 INFO L93 Difference]: Finished difference Result 701 states and 1362 transitions. [2023-12-02 14:08:39,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:08:39,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2023-12-02 14:08:39,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:08:39,831 INFO L225 Difference]: With dead ends: 701 [2023-12-02 14:08:39,831 INFO L226 Difference]: Without dead ends: 701 [2023-12-02 14:08:39,833 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 [2023-12-02 14:08:39,836 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 50 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:08:39,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 166 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:08:39,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2023-12-02 14:08:39,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 593. [2023-12-02 14:08:39,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 586 states have (on average 1.9624573378839592) internal successors, (1150), 592 states have internal predecessors, (1150), 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) [2023-12-02 14:08:39,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1150 transitions. [2023-12-02 14:08:39,920 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1150 transitions. Word has length 26 [2023-12-02 14:08:39,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:08:39,921 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 1150 transitions. [2023-12-02 14:08:39,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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) [2023-12-02 14:08:39,921 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1150 transitions. [2023-12-02 14:08:39,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 14:08:39,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:08:39,923 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] [2023-12-02 14:08:39,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:08:39,924 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)] === [2023-12-02 14:08:39,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:08:39,925 INFO L85 PathProgramCache]: Analyzing trace with hash 559975626, now seen corresponding path program 1 times [2023-12-02 14:08:39,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:08:39,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120976353] [2023-12-02 14:08:39,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:08:39,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:08:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:08:40,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:08:40,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:08:40,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120976353] [2023-12-02 14:08:40,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120976353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:08:40,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:08:40,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:08:40,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392787849] [2023-12-02 14:08:40,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:08:40,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:08:40,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:08:40,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:08:40,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:08:40,066 INFO L87 Difference]: Start difference. First operand 593 states and 1150 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-12-02 14:08:40,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:08:40,119 INFO L93 Difference]: Finished difference Result 615 states and 1174 transitions. [2023-12-02 14:08:40,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:08:40,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2023-12-02 14:08:40,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:08:40,123 INFO L225 Difference]: With dead ends: 615 [2023-12-02 14:08:40,123 INFO L226 Difference]: Without dead ends: 455 [2023-12-02 14:08:40,124 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 [2023-12-02 14:08:40,125 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 38 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:08:40,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 160 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:08:40,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-12-02 14:08:40,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 441. [2023-12-02 14:08:40,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 435 states have (on average 1.8574712643678162) internal successors, (808), 440 states have internal predecessors, (808), 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) [2023-12-02 14:08:40,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 808 transitions. [2023-12-02 14:08:40,145 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 808 transitions. Word has length 31 [2023-12-02 14:08:40,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:08:40,145 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 808 transitions. [2023-12-02 14:08:40,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-12-02 14:08:40,146 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 808 transitions. [2023-12-02 14:08:40,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 14:08:40,148 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:08:40,149 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] [2023-12-02 14:08:40,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 14:08:40,149 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)] === [2023-12-02 14:08:40,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:08:40,150 INFO L85 PathProgramCache]: Analyzing trace with hash 698948329, now seen corresponding path program 1 times [2023-12-02 14:08:40,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:08:40,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870213824] [2023-12-02 14:08:40,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:08:40,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:08:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:08:40,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:08:40,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:08:40,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870213824] [2023-12-02 14:08:40,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870213824] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:08:40,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:08:40,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:08:40,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274087634] [2023-12-02 14:08:40,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:08:40,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:08:40,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:08:40,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:08:40,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:08:40,213 INFO L87 Difference]: Start difference. First operand 441 states and 808 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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) [2023-12-02 14:08:40,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:08:40,256 INFO L93 Difference]: Finished difference Result 444 states and 802 transitions. [2023-12-02 14:08:40,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:08:40,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2023-12-02 14:08:40,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:08:40,259 INFO L225 Difference]: With dead ends: 444 [2023-12-02 14:08:40,259 INFO L226 Difference]: Without dead ends: 318 [2023-12-02 14:08:40,260 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 [2023-12-02 14:08:40,261 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 18 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:08:40,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 135 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:08:40,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-12-02 14:08:40,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2023-12-02 14:08:40,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 314 states have (on average 1.71656050955414) internal successors, (539), 317 states have internal predecessors, (539), 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) [2023-12-02 14:08:40,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 539 transitions. [2023-12-02 14:08:40,275 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 539 transitions. Word has length 37 [2023-12-02 14:08:40,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:08:40,275 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 539 transitions. [2023-12-02 14:08:40,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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) [2023-12-02 14:08:40,276 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 539 transitions. [2023-12-02 14:08:40,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 14:08:40,278 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:08:40,278 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, 1, 1] [2023-12-02 14:08:40,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 14:08:40,279 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-12-02 14:08:40,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:08:40,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1342733689, now seen corresponding path program 1 times [2023-12-02 14:08:40,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:08:40,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627474050] [2023-12-02 14:08:40,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:08:40,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:08:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:08:40,308 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 14:08:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:08:40,344 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 14:08:40,344 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 14:08:40,345 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-12-02 14:08:40,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-12-02 14:08:40,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2023-12-02 14:08:40,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-12-02 14:08:40,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-12-02 14:08:40,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-12-02 14:08:40,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-12-02 14:08:40,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 14:08:40,352 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-02 14:08:40,358 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-02 14:08:40,358 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 14:08:40,381 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet34 could not be translated [2023-12-02 14:08:40,382 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre35 could not be translated [2023-12-02 14:08:40,383 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post41 could not be translated [2023-12-02 14:08:40,383 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet42 could not be translated [2023-12-02 14:08:40,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:08:40 BasicIcfg [2023-12-02 14:08:40,388 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 14:08:40,389 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 14:08:40,389 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 14:08:40,389 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 14:08:40,389 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:08:39" (3/4) ... [2023-12-02 14:08:40,391 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 14:08:40,392 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 14:08:40,392 INFO L158 Benchmark]: Toolchain (without parser) took 2131.57ms. Allocated memory is still 197.1MB. Free memory was 163.0MB in the beginning and 128.2MB in the end (delta: 34.8MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2023-12-02 14:08:40,392 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 109.1MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:08:40,393 INFO L158 Benchmark]: CACSL2BoogieTranslator took 587.70ms. Allocated memory is still 197.1MB. Free memory was 162.3MB in the beginning and 135.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-12-02 14:08:40,393 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.43ms. Allocated memory is still 197.1MB. Free memory was 134.0MB in the beginning and 132.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:08:40,394 INFO L158 Benchmark]: Boogie Preprocessor took 27.34ms. Allocated memory is still 197.1MB. Free memory was 132.0MB in the beginning and 131.0MB in the end (delta: 939.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:08:40,394 INFO L158 Benchmark]: RCFGBuilder took 340.96ms. Allocated memory is still 197.1MB. Free memory was 131.0MB in the beginning and 116.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 14:08:40,394 INFO L158 Benchmark]: TraceAbstraction took 1116.55ms. Allocated memory is still 197.1MB. Free memory was 115.2MB in the beginning and 128.2MB in the end (delta: -13.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:08:40,395 INFO L158 Benchmark]: Witness Printer took 2.99ms. Allocated memory is still 197.1MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:08:40,397 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 109.1MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 587.70ms. Allocated memory is still 197.1MB. Free memory was 162.3MB in the beginning and 135.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.43ms. Allocated memory is still 197.1MB. Free memory was 134.0MB in the beginning and 132.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.34ms. Allocated memory is still 197.1MB. Free memory was 132.0MB in the beginning and 131.0MB in the end (delta: 939.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 340.96ms. Allocated memory is still 197.1MB. Free memory was 131.0MB in the beginning and 116.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1116.55ms. Allocated memory is still 197.1MB. Free memory was 115.2MB in the beginning and 128.2MB in the end (delta: -13.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.99ms. Allocated memory is still 197.1MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet42 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: 932]: Data race detected [2023-12-02 14:08:40,412 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet34 could not be translated [2023-12-02 14:08:40,413 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre35 could not be translated [2023-12-02 14:08:40,413 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post41 could not be translated [2023-12-02 14:08:40,413 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet42 could not be translated [2023-12-02 14:08:40,425 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet34 could not be translated [2023-12-02 14:08:40,425 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre35 could not be translated [2023-12-02 14:08:40,427 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet42 could not be translated [2023-12-02 14:08:40,427 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post41 could not be translated Data race detected The following path leads to a data race: [L928] 0 int glob; VAL [glob=0] [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, m={1:0}] [L937] 0 int i = __VERIFIER_nondet_int(); VAL [glob=0, i=0, m={1:0}] [L938] 0 pthread_t id; VAL [glob=0, i=0, id={2:0}, m={1:0}] [L939] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, i=0, id={2:0}, m={1:0}] [L941] COND FALSE 0 !(\read(i)) VAL [arg={0:0}, arg={0:0}, glob=0, i=0, id={2:0}, m={1:0}] [L944] 0 i++ VAL [arg={0:0}, arg={0:0}, glob=0, i=1, id={2:0}, m={1:0}] [L932] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=0, m={1:0}] [L945] COND TRUE 0 \read(i) VAL [arg={0:0}, arg={0:0}, glob=0, i=1, id={2:0}, m={1:0}] [L946] 0 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, i=1, id={2:0}, m={1:0}] [L932] 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++ [946] and C: glob++ [932] - UnprovableResult [Line: 946]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: 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: 932]: 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, 96 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 106 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 461 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 172 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 289 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=593occurred in iteration=0, 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, 122 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 97 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! [2023-12-02 14:08:40,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70f1d58f-932d-45a3-bef2-c7d92e1b6668/bin/utaipan-verify-nQ1chXbOIh/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