./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/safe018_rmo.oepc.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_502f16c6-a996-488d-8d72-0481eb278f58/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f16c6-a996-488d-8d72-0481eb278f58/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_502f16c6-a996-488d-8d72-0481eb278f58/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f16c6-a996-488d-8d72-0481eb278f58/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe018_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f16c6-a996-488d-8d72-0481eb278f58/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_502f16c6-a996-488d-8d72-0481eb278f58/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 6f413b41672ef8cb3f594e0d22a82a07ab4d735f8bfa69fff7e94198d51bd0eb --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:23:30,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:23:30,887 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f16c6-a996-488d-8d72-0481eb278f58/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-12-02 14:23:30,891 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:23:30,892 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:23:30,918 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:23:30,918 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:23:30,919 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:23:30,920 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:23:30,920 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:23:30,921 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:23:30,922 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:23:30,922 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:23:30,923 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:23:30,923 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:23:30,924 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:23:30,924 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:23:30,925 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:23:30,925 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:23:30,926 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:23:30,927 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:23:30,927 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:23:30,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:23:30,929 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:23:30,929 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:23:30,929 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:23:30,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:23:30,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:23:30,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:23:30,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:23:30,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:23:30,932 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-12-02 14:23:30,932 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 14:23:30,932 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:23:30,933 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:23:30,933 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:23:30,933 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:23:30,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:23:30,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:23:30,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:23:30,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:23:30,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:23:30,935 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:23:30,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:23:30,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:23:30,935 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:23:30,936 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:23:30,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:23:30,936 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_502f16c6-a996-488d-8d72-0481eb278f58/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f16c6-a996-488d-8d72-0481eb278f58/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f413b41672ef8cb3f594e0d22a82a07ab4d735f8bfa69fff7e94198d51bd0eb [2023-12-02 14:23:31,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:23:31,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:23:31,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:23:31,192 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:23:31,192 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:23:31,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f16c6-a996-488d-8d72-0481eb278f58/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-wmm/safe018_rmo.oepc.i [2023-12-02 14:23:33,939 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:23:34,208 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:23:34,209 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f16c6-a996-488d-8d72-0481eb278f58/sv-benchmarks/c/pthread-wmm/safe018_rmo.oepc.i [2023-12-02 14:23:34,228 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f16c6-a996-488d-8d72-0481eb278f58/bin/utaipan-verify-nQ1chXbOIh/data/f2a4b99ad/bb3b09eee3694417a370ae18d8a492a0/FLAGf09a8b976 [2023-12-02 14:23:34,529 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f16c6-a996-488d-8d72-0481eb278f58/bin/utaipan-verify-nQ1chXbOIh/data/f2a4b99ad/bb3b09eee3694417a370ae18d8a492a0 [2023-12-02 14:23:34,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:23:34,533 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:23:34,535 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:23:34,535 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:23:34,541 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:23:34,542 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:23:34" (1/1) ... [2023-12-02 14:23:34,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15fa425a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:23:34, skipping insertion in model container [2023-12-02 14:23:34,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:23:34" (1/1) ... [2023-12-02 14:23:34,595 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:23:34,925 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:23:34,935 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:23:35,017 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:23:35,045 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:23:35,045 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:23:35,051 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:23:35,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:23:35 WrapperNode [2023-12-02 14:23:35,051 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:23:35,052 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:23:35,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:23:35,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:23:35,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:23:35" (1/1) ... [2023-12-02 14:23:35,083 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:23:35" (1/1) ... [2023-12-02 14:23:35,110 INFO L138 Inliner]: procedures = 176, calls = 66, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 318 [2023-12-02 14:23:35,110 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:23:35,111 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:23:35,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:23:35,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:23:35,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:23:35" (1/1) ... [2023-12-02 14:23:35,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:23:35" (1/1) ... [2023-12-02 14:23:35,127 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:23:35" (1/1) ... [2023-12-02 14:23:35,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:23:35" (1/1) ... [2023-12-02 14:23:35,151 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:23:35" (1/1) ... [2023-12-02 14:23:35,158 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:23:35" (1/1) ... [2023-12-02 14:23:35,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:23:35" (1/1) ... [2023-12-02 14:23:35,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:23:35" (1/1) ... [2023-12-02 14:23:35,174 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:23:35,175 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:23:35,175 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:23:35,175 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:23:35,176 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:23:35" (1/1) ... [2023-12-02 14:23:35,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:23:35,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f16c6-a996-488d-8d72-0481eb278f58/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:23:35,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f16c6-a996-488d-8d72-0481eb278f58/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:23:35,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f16c6-a996-488d-8d72-0481eb278f58/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:23:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 14:23:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 14:23:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-02 14:23:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:23:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 14:23:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 14:23:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-02 14:23:35,257 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-02 14:23:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-02 14:23:35,257 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-02 14:23:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-02 14:23:35,257 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-02 14:23:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:23:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-02 14:23:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:23:35,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:23:35,260 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 14:23:35,448 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:23:35,450 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:23:36,527 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:23:41,934 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:23:41,934 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 14:23:41,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:23:41 BoogieIcfgContainer [2023-12-02 14:23:41,936 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:23:41,938 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:23:41,938 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:23:41,940 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:23:41,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:23:34" (1/3) ... [2023-12-02 14:23:41,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aec4a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:23:41, skipping insertion in model container [2023-12-02 14:23:41,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:23:35" (2/3) ... [2023-12-02 14:23:41,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aec4a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:23:41, skipping insertion in model container [2023-12-02 14:23:41,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:23:41" (3/3) ... [2023-12-02 14:23:41,943 INFO L112 eAbstractionObserver]: Analyzing ICFG safe018_rmo.oepc.i [2023-12-02 14:23:41,951 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 14:23:41,959 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:23:41,959 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 182 error locations. [2023-12-02 14:23:41,959 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 14:23:42,336 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 14:23:42,376 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 325 places, 318 transitions, 648 flow [2023-12-02 14:25:24,762 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3751207 states, 3120848 states have (on average 4.673426261067505) internal successors, (14585053), 3751206 states have internal predecessors, (14585053), 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 14:25:24,806 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:25:24,825 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;@6507a7a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:25:24,826 INFO L358 AbstractCegarLoop]: Starting to check reachability of 323 error locations. [2023-12-02 14:25:30,585 INFO L276 IsEmpty]: Start isEmpty. Operand has 3751207 states, 3120848 states have (on average 4.673426261067505) internal successors, (14585053), 3751206 states have internal predecessors, (14585053), 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 14:25:30,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 14:25:30,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:25:30,596 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:25:30,597 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err66ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 319 more)] === [2023-12-02 14:25:30,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:25:30,605 INFO L85 PathProgramCache]: Analyzing trace with hash -738082261, now seen corresponding path program 1 times [2023-12-02 14:25:30,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:25:30,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459059119] [2023-12-02 14:25:30,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:25:30,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:25:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:25:30,858 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 14:25:30,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:25:30,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459059119] [2023-12-02 14:25:30,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459059119] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:25:30,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:25:30,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 14:25:30,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812413748] [2023-12-02 14:25:30,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:25:30,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 14:25:30,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:25:30,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 14:25:30,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2