./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/bigshot_p.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5351809a-afab-4ae3-8de8-ec079ba02f0a/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5351809a-afab-4ae3-8de8-ec079ba02f0a/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5351809a-afab-4ae3-8de8-ec079ba02f0a/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5351809a-afab-4ae3-8de8-ec079ba02f0a/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/bigshot_p.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5351809a-afab-4ae3-8de8-ec079ba02f0a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5351809a-afab-4ae3-8de8-ec079ba02f0a/bin/uautomizer-verify-uTZkv6EMXl --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f85a81c281496cbdf0eab98e129af733fe18998c76267e6089945bdfc7c0c54 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:31:10,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:31:10,870 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5351809a-afab-4ae3-8de8-ec079ba02f0a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:31:10,881 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:31:10,881 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:31:10,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:31:10,931 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:31:10,932 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:31:10,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:31:10,938 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:31:10,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:31:10,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:31:10,941 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:31:10,943 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:31:10,943 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:31:10,944 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:31:10,944 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:31:10,945 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:31:10,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:31:10,946 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:31:10,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:31:10,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:31:10,947 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:31:10,948 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:31:10,948 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:31:10,949 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:31:10,949 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:31:10,950 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:31:10,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:31:10,951 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:31:10,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:31:10,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:31:10,954 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:31:10,954 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:31:10,954 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:31:10,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:31:10,955 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:31:10,955 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:31:10,956 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:31:10,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:31:10,956 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:31:10,957 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5351809a-afab-4ae3-8de8-ec079ba02f0a/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5351809a-afab-4ae3-8de8-ec079ba02f0a/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f85a81c281496cbdf0eab98e129af733fe18998c76267e6089945bdfc7c0c54 [2023-11-12 02:31:11,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:31:11,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:31:11,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:31:11,337 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:31:11,338 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:31:11,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5351809a-afab-4ae3-8de8-ec079ba02f0a/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread/bigshot_p.i [2023-11-12 02:31:14,481 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:31:14,809 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:31:14,809 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5351809a-afab-4ae3-8de8-ec079ba02f0a/sv-benchmarks/c/pthread/bigshot_p.i [2023-11-12 02:31:14,841 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5351809a-afab-4ae3-8de8-ec079ba02f0a/bin/uautomizer-verify-uTZkv6EMXl/data/6a12eb09c/77802cdd7e4845f0a9f9892c4b8009d1/FLAG6bc2ed9fe [2023-11-12 02:31:14,859 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5351809a-afab-4ae3-8de8-ec079ba02f0a/bin/uautomizer-verify-uTZkv6EMXl/data/6a12eb09c/77802cdd7e4845f0a9f9892c4b8009d1 [2023-11-12 02:31:14,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:31:14,868 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:31:14,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:31:14,872 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:31:14,878 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:31:14,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:31:14" (1/1) ... [2023-11-12 02:31:14,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dab79cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:14, skipping insertion in model container [2023-11-12 02:31:14,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:31:14" (1/1) ... [2023-11-12 02:31:14,948 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:31:15,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:31:15,616 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:31:15,687 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:31:15,815 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:31:15,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:15 WrapperNode [2023-11-12 02:31:15,815 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:31:15,818 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:31:15,818 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:31:15,818 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:31:15,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:15" (1/1) ... [2023-11-12 02:31:15,851 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:15" (1/1) ... [2023-11-12 02:31:15,897 INFO L138 Inliner]: procedures = 324, calls = 35, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 108 [2023-11-12 02:31:15,898 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:31:15,899 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:31:15,899 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:31:15,899 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:31:15,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:15" (1/1) ... [2023-11-12 02:31:15,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:15" (1/1) ... [2023-11-12 02:31:15,914 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:15" (1/1) ... [2023-11-12 02:31:15,915 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:15" (1/1) ... [2023-11-12 02:31:15,924 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:15" (1/1) ... [2023-11-12 02:31:15,927 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:15" (1/1) ... [2023-11-12 02:31:15,930 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:15" (1/1) ... [2023-11-12 02:31:15,931 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:15" (1/1) ... [2023-11-12 02:31:15,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:31:15,950 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:31:15,951 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:31:15,951 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:31:15,952 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:15" (1/1) ... [2023-11-12 02:31:15,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:31:15,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5351809a-afab-4ae3-8de8-ec079ba02f0a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:31:15,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5351809a-afab-4ae3-8de8-ec079ba02f0a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:31:16,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5351809a-afab-4ae3-8de8-ec079ba02f0a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:31:16,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:31:16,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:31:16,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 02:31:16,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:31:16,031 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:31:16,032 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:31:16,032 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:31:16,033 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:31:16,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:31:16,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:31:16,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:31:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:31:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:31:16,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:31:16,037 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:31:16,184 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:31:16,189 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:31:16,440 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:31:16,449 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:31:16,449 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:31:16,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:31:16 BoogieIcfgContainer [2023-11-12 02:31:16,451 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:31:16,454 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:31:16,454 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:31:16,457 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:31:16,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:31:14" (1/3) ... [2023-11-12 02:31:16,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fdf47e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:31:16, skipping insertion in model container [2023-11-12 02:31:16,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:15" (2/3) ... [2023-11-12 02:31:16,459 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fdf47e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:31:16, skipping insertion in model container [2023-11-12 02:31:16,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:31:16" (3/3) ... [2023-11-12 02:31:16,460 INFO L112 eAbstractionObserver]: Analyzing ICFG bigshot_p.i [2023-11-12 02:31:16,469 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:31:16,478 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:31:16,478 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-12 02:31:16,478 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:31:16,608 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-12 02:31:16,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 129 transitions, 272 flow [2023-11-12 02:31:16,777 INFO L124 PetriNetUnfolderBase]: 6/127 cut-off events. [2023-11-12 02:31:16,777 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:31:16,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 127 events. 6/127 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 151 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2023-11-12 02:31:16,784 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 129 transitions, 272 flow [2023-11-12 02:31:16,791 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 100 transitions, 212 flow [2023-11-12 02:31:16,794 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:31:16,806 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 100 transitions, 212 flow [2023-11-12 02:31:16,809 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 100 transitions, 212 flow [2023-11-12 02:31:16,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 212 flow [2023-11-12 02:31:16,840 INFO L124 PetriNetUnfolderBase]: 3/100 cut-off events. [2023-11-12 02:31:16,840 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:31:16,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 100 events. 3/100 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 112 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2023-11-12 02:31:16,843 INFO L119 LiptonReduction]: Number of co-enabled transitions 2002 [2023-11-12 02:31:20,814 INFO L134 LiptonReduction]: Checked pairs total: 4869 [2023-11-12 02:31:20,815 INFO L136 LiptonReduction]: Total number of compositions: 88 [2023-11-12 02:31:20,832 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:31:20,838 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@63853ba5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:31:20,840 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-12 02:31:20,850 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:31:20,850 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-12 02:31:20,851 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:31:20,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:31:20,852 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:31:20,852 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-12 02:31:20,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:20,859 INFO L85 PathProgramCache]: Analyzing trace with hash 421971108, now seen corresponding path program 1 times [2023-11-12 02:31:20,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:20,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408832699] [2023-11-12 02:31:20,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:20,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:21,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:21,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:21,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408832699] [2023-11-12 02:31:21,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408832699] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:21,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:21,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:31:21,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809526093] [2023-11-12 02:31:21,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:21,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:31:21,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:21,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:31:21,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:31:21,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 217 [2023-11-12 02:31:21,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 74 flow. Second operand has 2 states, 2 states have (on average 123.5) internal successors, (247), 2 states have internal predecessors, (247), 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) [2023-11-12 02:31:21,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:31:21,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 217 [2023-11-12 02:31:21,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:31:21,232 INFO L124 PetriNetUnfolderBase]: 65/177 cut-off events. [2023-11-12 02:31:21,233 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-12 02:31:21,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 177 events. 65/177 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 730 event pairs, 45 based on Foata normal form. 11/157 useless extension candidates. Maximal degree in co-relation 258. Up to 116 conditions per place. [2023-11-12 02:31:21,239 INFO L140 encePairwiseOnDemand]: 211/217 looper letters, 15 selfloop transitions, 0 changer transitions 1/25 dead transitions. [2023-11-12 02:31:21,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 25 transitions, 94 flow [2023-11-12 02:31:21,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:31:21,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:31:21,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 264 transitions. [2023-11-12 02:31:21,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6082949308755761 [2023-11-12 02:31:21,256 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 264 transitions. [2023-11-12 02:31:21,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 264 transitions. [2023-11-12 02:31:21,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:31:21,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 264 transitions. [2023-11-12 02:31:21,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 132.0) internal successors, (264), 2 states have internal predecessors, (264), 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) [2023-11-12 02:31:21,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2023-11-12 02:31:21,270 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2023-11-12 02:31:21,272 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 74 flow. Second operand 2 states and 264 transitions. [2023-11-12 02:31:21,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 25 transitions, 94 flow [2023-11-12 02:31:21,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 25 transitions, 86 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-12 02:31:21,277 INFO L231 Difference]: Finished difference. Result has 27 places, 24 transitions, 51 flow [2023-11-12 02:31:21,279 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=51, PETRI_PLACES=27, PETRI_TRANSITIONS=24} [2023-11-12 02:31:21,283 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -8 predicate places. [2023-11-12 02:31:21,283 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 24 transitions, 51 flow [2023-11-12 02:31:21,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 123.5) internal successors, (247), 2 states have internal predecessors, (247), 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) [2023-11-12 02:31:21,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:31:21,284 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:31:21,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:31:21,285 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-12 02:31:21,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:21,285 INFO L85 PathProgramCache]: Analyzing trace with hash 196200619, now seen corresponding path program 1 times [2023-11-12 02:31:21,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:21,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435292905] [2023-11-12 02:31:21,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:21,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:21,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:21,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:21,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435292905] [2023-11-12 02:31:21,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435292905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:21,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:21,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:31:21,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407648315] [2023-11-12 02:31:21,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:21,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:31:21,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:21,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:31:21,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:31:21,433 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 217 [2023-11-12 02:31:21,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 24 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2023-11-12 02:31:21,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:31:21,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 217 [2023-11-12 02:31:21,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:31:21,529 INFO L124 PetriNetUnfolderBase]: 180/363 cut-off events. [2023-11-12 02:31:21,530 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-12 02:31:21,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 695 conditions, 363 events. 180/363 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1524 event pairs, 36 based on Foata normal form. 0/333 useless extension candidates. Maximal degree in co-relation 692. Up to 192 conditions per place. [2023-11-12 02:31:21,533 INFO L140 encePairwiseOnDemand]: 210/217 looper letters, 27 selfloop transitions, 5 changer transitions 3/38 dead transitions. [2023-11-12 02:31:21,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 38 transitions, 150 flow [2023-11-12 02:31:21,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:31:21,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:31:21,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2023-11-12 02:31:21,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.554531490015361 [2023-11-12 02:31:21,538 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 361 transitions. [2023-11-12 02:31:21,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 361 transitions. [2023-11-12 02:31:21,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:31:21,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 361 transitions. [2023-11-12 02:31:21,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2023-11-12 02:31:21,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 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) [2023-11-12 02:31:21,545 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 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) [2023-11-12 02:31:21,545 INFO L175 Difference]: Start difference. First operand has 27 places, 24 transitions, 51 flow. Second operand 3 states and 361 transitions. [2023-11-12 02:31:21,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 38 transitions, 150 flow [2023-11-12 02:31:21,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 38 transitions, 150 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:31:21,547 INFO L231 Difference]: Finished difference. Result has 30 places, 28 transitions, 91 flow [2023-11-12 02:31:21,547 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=30, PETRI_TRANSITIONS=28} [2023-11-12 02:31:21,548 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -5 predicate places. [2023-11-12 02:31:21,549 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 28 transitions, 91 flow [2023-11-12 02:31:21,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2023-11-12 02:31:21,550 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:31:21,550 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:31:21,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:31:21,550 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-12 02:31:21,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:21,551 INFO L85 PathProgramCache]: Analyzing trace with hash 196084672, now seen corresponding path program 1 times [2023-11-12 02:31:21,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:21,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134227044] [2023-11-12 02:31:21,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:21,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:21,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:21,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:21,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134227044] [2023-11-12 02:31:21,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134227044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:21,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:21,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:31:21,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854393024] [2023-11-12 02:31:21,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:21,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:31:21,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:21,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:31:21,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:31:21,630 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 217 [2023-11-12 02:31:21,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 28 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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) [2023-11-12 02:31:21,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:31:21,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 217 [2023-11-12 02:31:21,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:31:21,720 INFO L124 PetriNetUnfolderBase]: 168/328 cut-off events. [2023-11-12 02:31:21,721 INFO L125 PetriNetUnfolderBase]: For 97/100 co-relation queries the response was YES. [2023-11-12 02:31:21,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 735 conditions, 328 events. 168/328 cut-off events. For 97/100 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1396 event pairs, 75 based on Foata normal form. 1/275 useless extension candidates. Maximal degree in co-relation 730. Up to 245 conditions per place. [2023-11-12 02:31:21,724 INFO L140 encePairwiseOnDemand]: 212/217 looper letters, 19 selfloop transitions, 6 changer transitions 6/39 dead transitions. [2023-11-12 02:31:21,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 39 transitions, 186 flow [2023-11-12 02:31:21,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:31:21,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:31:21,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 365 transitions. [2023-11-12 02:31:21,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5606758832565284 [2023-11-12 02:31:21,727 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 365 transitions. [2023-11-12 02:31:21,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 365 transitions. [2023-11-12 02:31:21,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:31:21,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 365 transitions. [2023-11-12 02:31:21,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 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) [2023-11-12 02:31:21,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 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) [2023-11-12 02:31:21,735 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 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) [2023-11-12 02:31:21,736 INFO L175 Difference]: Start difference. First operand has 30 places, 28 transitions, 91 flow. Second operand 3 states and 365 transitions. [2023-11-12 02:31:21,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 39 transitions, 186 flow [2023-11-12 02:31:21,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 39 transitions, 172 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:31:21,740 INFO L231 Difference]: Finished difference. Result has 31 places, 30 transitions, 113 flow [2023-11-12 02:31:21,740 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=31, PETRI_TRANSITIONS=30} [2023-11-12 02:31:21,741 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -4 predicate places. [2023-11-12 02:31:21,741 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 30 transitions, 113 flow [2023-11-12 02:31:21,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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) [2023-11-12 02:31:21,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:31:21,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:21,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:31:21,743 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-12 02:31:21,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:21,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1751202741, now seen corresponding path program 1 times [2023-11-12 02:31:21,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:21,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866930540] [2023-11-12 02:31:21,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:21,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:31:21,798 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:31:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:31:21,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:31:21,863 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:31:21,864 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2023-11-12 02:31:21,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2023-11-12 02:31:21,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2023-11-12 02:31:21,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2023-11-12 02:31:21,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2023-11-12 02:31:21,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2023-11-12 02:31:21,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2023-11-12 02:31:21,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2023-11-12 02:31:21,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2023-11-12 02:31:21,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2023-11-12 02:31:21,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2023-11-12 02:31:21,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2023-11-12 02:31:21,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2023-11-12 02:31:21,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:31:21,871 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-12 02:31:21,884 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:31:21,884 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:31:21,913 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated [2023-11-12 02:31:21,916 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-12 02:31:21,917 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-12 02:31:21,917 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-12 02:31:21,918 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 02:31:21,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:31:21 BasicIcfg [2023-11-12 02:31:21,938 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:31:21,939 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:31:21,939 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:31:21,939 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:31:21,940 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:31:16" (3/4) ... [2023-11-12 02:31:21,942 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:31:21,943 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:31:21,944 INFO L158 Benchmark]: Toolchain (without parser) took 7075.87ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 112.7MB in the beginning and 152.8MB in the end (delta: -40.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:31:21,945 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory was 88.5MB in the beginning and 88.4MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:31:21,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 943.81ms. Allocated memory is still 161.5MB. Free memory was 112.7MB in the beginning and 126.8MB in the end (delta: -14.0MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. [2023-11-12 02:31:21,950 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.45ms. Allocated memory is still 161.5MB. Free memory was 126.8MB in the beginning and 123.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:31:21,950 INFO L158 Benchmark]: Boogie Preprocessor took 51.10ms. Allocated memory is still 161.5MB. Free memory was 123.6MB in the beginning and 122.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:31:21,958 INFO L158 Benchmark]: RCFGBuilder took 501.08ms. Allocated memory is still 161.5MB. Free memory was 122.6MB in the beginning and 104.7MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:31:21,959 INFO L158 Benchmark]: TraceAbstraction took 5484.14ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 104.7MB in the beginning and 152.8MB in the end (delta: -48.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:31:21,959 INFO L158 Benchmark]: Witness Printer took 4.58ms. Allocated memory is still 195.0MB. Free memory is still 152.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:31:21,961 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory was 88.5MB in the beginning and 88.4MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 943.81ms. Allocated memory is still 161.5MB. Free memory was 112.7MB in the beginning and 126.8MB in the end (delta: -14.0MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.45ms. Allocated memory is still 161.5MB. Free memory was 126.8MB in the beginning and 123.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.10ms. Allocated memory is still 161.5MB. Free memory was 123.6MB in the beginning and 122.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 501.08ms. Allocated memory is still 161.5MB. Free memory was 122.6MB in the beginning and 104.7MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5484.14ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 104.7MB in the beginning and 152.8MB in the end (delta: -48.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.58ms. Allocated memory is still 195.0MB. Free memory is still 152.8MB. 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~pre6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 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: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 104 PlacesBefore, 35 PlacesAfterwards, 100 TransitionsBefore, 31 TransitionsAfterwards, 2002 CoEnabledTransitionPairs, 5 FixpointIterations, 36 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 0 ChoiceCompositions, 88 TotalNumberOfCompositions, 4869 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2897, independent: 2708, independent conditional: 0, independent unconditional: 2708, dependent: 189, dependent conditional: 0, dependent unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1194, independent: 1157, independent conditional: 0, independent unconditional: 1157, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2897, independent: 1551, independent conditional: 0, independent unconditional: 1551, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 1194, unknown conditional: 0, unknown unconditional: 1194] , Statistics on independence cache: Total cache size (in pairs): 118, Positive cache size: 101, Positive conditional cache size: 0, Positive unconditional cache size: 101, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1116]: Data race detected [2023-11-12 02:31:21,990 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated [2023-11-12 02:31:21,990 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-12 02:31:21,990 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-12 02:31:21,991 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-12 02:31:21,991 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 02:31:22,011 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated [2023-11-12 02:31:22,011 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-12 02:31:22,012 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-12 02:31:22,012 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 02:31:22,012 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 Data race detected The following path leads to a data race: [L1108] 0 char *v; [L1121] 0 pthread_t t1, t2; [L1122] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [t1={9:0}, t2={10:0}, v={0:0}] [L1111] EXPR, FCALL 1 calloc(8, sizeof(char)) [L1123] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [t1={9:0}, t2={10:0}, v={0:0}] [L1111] 1 v = calloc(8, sizeof(char)) VAL [arg={0:0}, arg={0:0}, v={-2:0}] [L1116] 2 \read(*v) VAL [arg={0:0}, arg={0:0}, v={-2:0}] [L1111] 1 v = calloc(8, sizeof(char)) VAL [arg={0:0}, arg={0:0}, v={-2:0}] [L1116] 2 \read(*v) VAL [arg={0:0}, arg={0:0}, v={-2:0}] Now there is a data race on ~v~0 between C: v = calloc(8, sizeof(char)) [1111] and C: if (v) strcpy(v, "Bigshot"); [1116] - UnprovableResult [Line: 1111]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1116]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1124]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1125]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1126]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1126]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1126]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1122]: 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: 1123]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 164 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 2 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=3, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 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! [2023-11-12 02:31:22,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5351809a-afab-4ae3-8de8-ec079ba02f0a/bin/uautomizer-verify-uTZkv6EMXl/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