./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 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_4de35fab-0854-4440-9cdb-e9c1eea434b6/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de35fab-0854-4440-9cdb-e9c1eea434b6/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de35fab-0854-4440-9cdb-e9c1eea434b6/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de35fab-0854-4440-9cdb-e9c1eea434b6/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de35fab-0854-4440-9cdb-e9c1eea434b6/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de35fab-0854-4440-9cdb-e9c1eea434b6/bin/utaipan-verify-NcY6lQBIFX --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 f222d5749b9bb10b4d4c09b2c40e45ee19dec77732a8593ce917652e8ca8a43e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:02:26,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:02:26,737 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de35fab-0854-4440-9cdb-e9c1eea434b6/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-12 01:02:26,743 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:02:26,743 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:02:26,770 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:02:26,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:02:26,771 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:02:26,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:02:26,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:02:26,773 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:02:26,774 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:02:26,774 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:02:26,775 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:02:26,775 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:02:26,776 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:02:26,776 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:02:26,777 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:02:26,778 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:02:26,778 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:02:26,779 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:02:26,779 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:02:26,780 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:02:26,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:02:26,781 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 01:02:26,781 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:02:26,782 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 01:02:26,782 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:02:26,783 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:02:26,783 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:02:26,784 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:02:26,784 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 01:02:26,784 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 01:02:26,785 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 01:02:26,785 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:02:26,785 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:02:26,786 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:02:26,786 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:02:26,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:26,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:02:26,787 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:02:26,787 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:02:26,788 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:02:26,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:02:26,788 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:02:26,788 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:02:26,789 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:02:26,789 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_4de35fab-0854-4440-9cdb-e9c1eea434b6/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de35fab-0854-4440-9cdb-e9c1eea434b6/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f222d5749b9bb10b4d4c09b2c40e45ee19dec77732a8593ce917652e8ca8a43e [2023-11-12 01:02:27,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:02:27,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:02:27,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:02:27,103 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:02:27,103 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:02:27,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de35fab-0854-4440-9cdb-e9c1eea434b6/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i [2023-11-12 01:02:30,125 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:02:30,374 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:02:30,375 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de35fab-0854-4440-9cdb-e9c1eea434b6/sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i [2023-11-12 01:02:30,390 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de35fab-0854-4440-9cdb-e9c1eea434b6/bin/utaipan-verify-NcY6lQBIFX/data/a5b9d4905/e63fc6c557a8484595e4ac13f0635b9a/FLAG3f19400ee [2023-11-12 01:02:30,405 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de35fab-0854-4440-9cdb-e9c1eea434b6/bin/utaipan-verify-NcY6lQBIFX/data/a5b9d4905/e63fc6c557a8484595e4ac13f0635b9a [2023-11-12 01:02:30,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:02:30,410 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:02:30,411 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:30,411 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:02:30,417 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:02:30,418 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:30" (1/1) ... [2023-11-12 01:02:30,419 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14771e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:30, skipping insertion in model container [2023-11-12 01:02:30,419 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:30" (1/1) ... [2023-11-12 01:02:30,464 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:02:30,883 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:30,899 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:02:30,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:31,000 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:02:31,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:31 WrapperNode [2023-11-12 01:02:31,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:31,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:31,002 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:02:31,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:02:31,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:31" (1/1) ... [2023-11-12 01:02:31,042 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:31" (1/1) ... [2023-11-12 01:02:31,070 INFO L138 Inliner]: procedures = 170, calls = 38, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 110 [2023-11-12 01:02:31,070 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:31,071 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:02:31,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:02:31,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:02:31,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:31" (1/1) ... [2023-11-12 01:02:31,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:31" (1/1) ... [2023-11-12 01:02:31,091 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:31" (1/1) ... [2023-11-12 01:02:31,091 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:31" (1/1) ... [2023-11-12 01:02:31,120 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:31" (1/1) ... [2023-11-12 01:02:31,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:31" (1/1) ... [2023-11-12 01:02:31,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:31" (1/1) ... [2023-11-12 01:02:31,145 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:31" (1/1) ... [2023-11-12 01:02:31,148 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:02:31,149 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:02:31,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:02:31,150 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:02:31,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:31" (1/1) ... [2023-11-12 01:02:31,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:31,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de35fab-0854-4440-9cdb-e9c1eea434b6/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:31,195 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de35fab-0854-4440-9cdb-e9c1eea434b6/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:02:31,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de35fab-0854-4440-9cdb-e9c1eea434b6/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:02:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 01:02:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 01:02:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 01:02:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:02:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 01:02:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-12 01:02:31,231 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-12 01:02:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 01:02:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:02:31,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:02:31,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:02:31,233 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 01:02:31,370 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:02:31,372 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:02:31,817 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:02:31,844 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:02:31,844 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-11-12 01:02:31,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:31 BoogieIcfgContainer [2023-11-12 01:02:31,847 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:02:31,850 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:02:31,850 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:02:31,854 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:02:31,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:02:30" (1/3) ... [2023-11-12 01:02:31,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499562a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:31, skipping insertion in model container [2023-11-12 01:02:31,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:31" (2/3) ... [2023-11-12 01:02:31,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499562a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:31, skipping insertion in model container [2023-11-12 01:02:31,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:31" (3/3) ... [2023-11-12 01:02:31,862 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_51-mutexptr_racefree.i [2023-11-12 01:02:31,873 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 01:02:31,884 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:02:31,885 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-12 01:02:31,885 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 01:02:32,028 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-12 01:02:32,066 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 01:02:32,081 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 189 transitions, 385 flow [2023-11-12 01:02:32,084 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 189 transitions, 385 flow [2023-11-12 01:02:32,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 189 transitions, 385 flow [2023-11-12 01:02:32,197 INFO L124 PetriNetUnfolderBase]: 19/252 cut-off events. [2023-11-12 01:02:32,197 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 01:02:32,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 252 events. 19/252 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 788 event pairs, 0 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 137. Up to 4 conditions per place. [2023-11-12 01:02:32,221 INFO L119 LiptonReduction]: Number of co-enabled transitions 9522 [2023-11-12 01:02:38,823 INFO L134 LiptonReduction]: Checked pairs total: 61505 [2023-11-12 01:02:38,823 INFO L136 LiptonReduction]: Total number of compositions: 168 [2023-11-12 01:02:38,832 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 77 transitions, 161 flow [2023-11-12 01:02:38,921 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1053 states, 999 states have (on average 2.2962962962962963) internal successors, (2294), 1052 states have internal predecessors, (2294), 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 01:02:38,945 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:02:38,953 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;@47b894ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:02:38,954 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-11-12 01:02:38,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 1053 states, 999 states have (on average 2.2962962962962963) internal successors, (2294), 1052 states have internal predecessors, (2294), 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 01:02:38,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-12 01:02:38,965 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:38,965 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-12 01:02:38,966 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 01:02:38,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:38,974 INFO L85 PathProgramCache]: Analyzing trace with hash 685, now seen corresponding path program 1 times [2023-11-12 01:02:38,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:38,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798937577] [2023-11-12 01:02:38,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:38,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:39,105 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 01:02:39,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:39,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798937577] [2023-11-12 01:02:39,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798937577] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:39,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:39,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 01:02:39,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655859097] [2023-11-12 01:02:39,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:39,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 01:02:39,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:39,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 01:02:39,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 01:02:39,146 INFO L87 Difference]: Start difference. First operand has 1053 states, 999 states have (on average 2.2962962962962963) internal successors, (2294), 1052 states have internal predecessors, (2294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 01:02:39,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:39,271 INFO L93 Difference]: Finished difference Result 987 states and 1887 transitions. [2023-11-12 01:02:39,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 01:02:39,273 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2023-11-12 01:02:39,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:39,302 INFO L225 Difference]: With dead ends: 987 [2023-11-12 01:02:39,302 INFO L226 Difference]: Without dead ends: 985 [2023-11-12 01:02:39,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 01:02:39,310 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:39,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:02:39,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2023-11-12 01:02:39,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 985. [2023-11-12 01:02:39,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 948 states have (on average 1.9873417721518987) internal successors, (1884), 984 states have internal predecessors, (1884), 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 01:02:39,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1884 transitions. [2023-11-12 01:02:39,432 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1884 transitions. Word has length 1 [2023-11-12 01:02:39,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:39,433 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 1884 transitions. [2023-11-12 01:02:39,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 01:02:39,435 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1884 transitions. [2023-11-12 01:02:39,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 01:02:39,436 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:39,437 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-12 01:02:39,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 01:02:39,437 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 01:02:39,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:39,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1322755009, now seen corresponding path program 1 times [2023-11-12 01:02:39,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:39,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520999763] [2023-11-12 01:02:39,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:39,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 01:02:39,540 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 01:02:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 01:02:39,621 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 01:02:39,621 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 01:02:39,623 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2023-11-12 01:02:39,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2023-11-12 01:02:39,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2023-11-12 01:02:39,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2023-11-12 01:02:39,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2023-11-12 01:02:39,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2023-11-12 01:02:39,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2023-11-12 01:02:39,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2023-11-12 01:02:39,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2023-11-12 01:02:39,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2023-11-12 01:02:39,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2023-11-12 01:02:39,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2023-11-12 01:02:39,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2023-11-12 01:02:39,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2023-11-12 01:02:39,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2023-11-12 01:02:39,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2023-11-12 01:02:39,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2023-11-12 01:02:39,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2023-11-12 01:02:39,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 01:02:39,634 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 01:02:39,636 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 01:02:39,637 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-12 01:02:39,692 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-12 01:02:39,700 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 01:02:39,701 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 245 places, 260 transitions, 536 flow [2023-11-12 01:02:39,702 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 245 places, 260 transitions, 536 flow [2023-11-12 01:02:39,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 245 places, 260 transitions, 536 flow [2023-11-12 01:02:39,813 INFO L124 PetriNetUnfolderBase]: 34/418 cut-off events. [2023-11-12 01:02:39,813 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-12 01:02:39,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 418 events. 34/418 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1707 event pairs, 0 based on Foata normal form. 0/354 useless extension candidates. Maximal degree in co-relation 254. Up to 8 conditions per place. [2023-11-12 01:02:39,847 INFO L119 LiptonReduction]: Number of co-enabled transitions 30084 [2023-11-12 01:02:47,721 INFO L134 LiptonReduction]: Checked pairs total: 248239 [2023-11-12 01:02:47,722 INFO L136 LiptonReduction]: Total number of compositions: 224 [2023-11-12 01:02:47,728 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 116 places, 128 transitions, 272 flow [2023-11-12 01:02:49,645 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 46428 states, 46031 states have (on average 3.310660207251635) internal successors, (152393), 46427 states have internal predecessors, (152393), 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 01:02:49,648 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:02:49,649 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;@47b894ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:02:49,649 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-12 01:02:49,761 INFO L276 IsEmpty]: Start isEmpty. Operand has 46428 states, 46031 states have (on average 3.310660207251635) internal successors, (152393), 46427 states have internal predecessors, (152393), 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 01:02:49,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-12 01:02:49,764 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:49,764 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-12 01:02:49,765 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-12 01:02:49,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:49,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1222, now seen corresponding path program 1 times [2023-11-12 01:02:49,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:49,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589582572] [2023-11-12 01:02:49,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:49,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:49,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:49,795 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 01:02:49,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:49,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589582572] [2023-11-12 01:02:49,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589582572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:49,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:49,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 01:02:49,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136411787] [2023-11-12 01:02:49,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:49,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 01:02:49,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:49,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 01:02:49,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 01:02:49,864 INFO L87 Difference]: Start difference. First operand has 46428 states, 46031 states have (on average 3.310660207251635) internal successors, (152393), 46427 states have internal predecessors, (152393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 01:02:50,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:50,818 INFO L93 Difference]: Finished difference Result 42614 states and 122644 transitions. [2023-11-12 01:02:50,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 01:02:50,819 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2023-11-12 01:02:50,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:51,293 INFO L225 Difference]: With dead ends: 42614 [2023-11-12 01:02:51,293 INFO L226 Difference]: Without dead ends: 42610 [2023-11-12 01:02:51,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 01:02:51,302 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:51,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:02:51,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42610 states. [2023-11-12 01:02:53,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42610 to 42610. [2023-11-12 01:02:53,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42610 states, 42359 states have (on average 2.8951580537784176) internal successors, (122636), 42609 states have internal predecessors, (122636), 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 01:02:53,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42610 states to 42610 states and 122636 transitions. [2023-11-12 01:02:53,725 INFO L78 Accepts]: Start accepts. Automaton has 42610 states and 122636 transitions. Word has length 1 [2023-11-12 01:02:53,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:53,725 INFO L495 AbstractCegarLoop]: Abstraction has 42610 states and 122636 transitions. [2023-11-12 01:02:53,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 01:02:53,726 INFO L276 IsEmpty]: Start isEmpty. Operand 42610 states and 122636 transitions. [2023-11-12 01:02:53,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 01:02:53,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:53,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:53,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 01:02:53,728 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-12 01:02:53,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:53,730 INFO L85 PathProgramCache]: Analyzing trace with hash 122333260, now seen corresponding path program 1 times [2023-11-12 01:02:53,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:53,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224513011] [2023-11-12 01:02:53,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:53,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:53,871 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 01:02:53,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:53,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224513011] [2023-11-12 01:02:53,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224513011] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:53,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:53,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 01:02:53,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766708581] [2023-11-12 01:02:53,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:53,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:02:53,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:53,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:02:53,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:02:53,889 INFO L87 Difference]: Start difference. First operand 42610 states and 122636 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 01:02:54,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:54,672 INFO L93 Difference]: Finished difference Result 42597 states and 122622 transitions. [2023-11-12 01:02:54,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:02:54,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-12 01:02:54,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:54,907 INFO L225 Difference]: With dead ends: 42597 [2023-11-12 01:02:54,907 INFO L226 Difference]: Without dead ends: 42597 [2023-11-12 01:02:54,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:02:54,908 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 41 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:54,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 130 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:02:55,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42597 states. [2023-11-12 01:02:56,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42597 to 42597. [2023-11-12 01:02:56,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42597 states, 42348 states have (on average 2.8955794842731652) internal successors, (122622), 42596 states have internal predecessors, (122622), 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 01:02:56,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42597 states to 42597 states and 122622 transitions. [2023-11-12 01:02:56,868 INFO L78 Accepts]: Start accepts. Automaton has 42597 states and 122622 transitions. Word has length 10 [2023-11-12 01:02:56,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:56,868 INFO L495 AbstractCegarLoop]: Abstraction has 42597 states and 122622 transitions. [2023-11-12 01:02:56,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 01:02:56,869 INFO L276 IsEmpty]: Start isEmpty. Operand 42597 states and 122622 transitions. [2023-11-12 01:02:56,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 01:02:56,893 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:56,893 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-12 01:02:56,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 01:02:56,894 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-12 01:02:56,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:56,895 INFO L85 PathProgramCache]: Analyzing trace with hash 876543524, now seen corresponding path program 1 times [2023-11-12 01:02:56,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:56,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727341860] [2023-11-12 01:02:56,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:56,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 01:02:56,945 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 01:02:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 01:02:56,984 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 01:02:56,986 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 01:02:56,987 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2023-11-12 01:02:56,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2023-11-12 01:02:56,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2023-11-12 01:02:56,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2023-11-12 01:02:56,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2023-11-12 01:02:56,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2023-11-12 01:02:56,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2023-11-12 01:02:56,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2023-11-12 01:02:56,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2023-11-12 01:02:56,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2023-11-12 01:02:56,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2023-11-12 01:02:56,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2023-11-12 01:02:56,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2023-11-12 01:02:56,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2023-11-12 01:02:56,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2023-11-12 01:02:56,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2023-11-12 01:02:56,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2023-11-12 01:02:56,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2023-11-12 01:02:56,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2023-11-12 01:02:56,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2023-11-12 01:02:56,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2023-11-12 01:02:56,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2023-11-12 01:02:56,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2023-11-12 01:02:56,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2023-11-12 01:02:56,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 01:02:56,999 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-12 01:02:57,000 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 01:02:57,000 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-12 01:02:57,061 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-12 01:02:57,065 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 01:02:57,066 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 311 places, 331 transitions, 689 flow [2023-11-12 01:02:57,067 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 311 places, 331 transitions, 689 flow [2023-11-12 01:02:57,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 311 places, 331 transitions, 689 flow [2023-11-12 01:02:57,243 INFO L124 PetriNetUnfolderBase]: 54/631 cut-off events. [2023-11-12 01:02:57,244 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-12 01:02:57,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 656 conditions, 631 events. 54/631 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2881 event pairs, 1 based on Foata normal form. 0/534 useless extension candidates. Maximal degree in co-relation 426. Up to 16 conditions per place. [2023-11-12 01:02:57,297 INFO L119 LiptonReduction]: Number of co-enabled transitions 60030 [2023-11-12 01:03:07,211 INFO L134 LiptonReduction]: Checked pairs total: 536601 [2023-11-12 01:03:07,211 INFO L136 LiptonReduction]: Total number of compositions: 278 [2023-11-12 01:03:07,212 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 158 places, 175 transitions, 377 flow