./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c69e5ba-4fda-41ec-80e3-81c07cc2c94d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c69e5ba-4fda-41ec-80e3-81c07cc2c94d/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c69e5ba-4fda-41ec-80e3-81c07cc2c94d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c69e5ba-4fda-41ec-80e3-81c07cc2c94d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c69e5ba-4fda-41ec-80e3-81c07cc2c94d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c69e5ba-4fda-41ec-80e3-81c07cc2c94d/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:09:01,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:09:01,313 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c69e5ba-4fda-41ec-80e3-81c07cc2c94d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:09:01,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:09:01,318 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:09:01,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:09:01,344 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:09:01,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:09:01,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:09:01,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:09:01,347 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:09:01,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:09:01,348 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:09:01,349 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:09:01,349 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:09:01,350 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:09:01,350 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:09:01,351 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:09:01,351 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:09:01,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:09:01,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:09:01,353 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:09:01,353 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:09:01,354 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:09:01,354 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:09:01,355 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:09:01,355 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:09:01,355 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:09:01,356 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:09:01,356 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:09:01,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:09:01,357 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:09:01,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:09:01,358 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:09:01,358 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:09:01,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:09:01,358 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:09:01,358 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:09:01,359 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:09:01,359 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:09:01,359 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:09:01,359 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c69e5ba-4fda-41ec-80e3-81c07cc2c94d/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c69e5ba-4fda-41ec-80e3-81c07cc2c94d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f [2023-11-21 22:09:01,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:09:01,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:09:01,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:09:01,709 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:09:01,710 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:09:01,711 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c69e5ba-4fda-41ec-80e3-81c07cc2c94d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2023-11-21 22:09:04,816 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:09:05,200 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:09:05,202 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c69e5ba-4fda-41ec-80e3-81c07cc2c94d/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2023-11-21 22:09:05,216 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c69e5ba-4fda-41ec-80e3-81c07cc2c94d/bin/uautomizer-verify-bycVGegfSx/data/f47b085c9/3518dd8f83b04554860410d9754a95bf/FLAG9442979aa [2023-11-21 22:09:05,229 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c69e5ba-4fda-41ec-80e3-81c07cc2c94d/bin/uautomizer-verify-bycVGegfSx/data/f47b085c9/3518dd8f83b04554860410d9754a95bf [2023-11-21 22:09:05,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:09:05,233 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:09:05,236 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:09:05,236 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:09:05,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:09:05,247 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:09:05" (1/1) ... [2023-11-21 22:09:05,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b627948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:05, skipping insertion in model container [2023-11-21 22:09:05,249 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:09:05" (1/1) ... [2023-11-21 22:09:05,299 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:09:05,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:09:05,717 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:09:05,804 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:09:05,863 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:09:05,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:05 WrapperNode [2023-11-21 22:09:05,864 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:09:05,865 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:09:05,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:09:05,866 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:09:05,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:05" (1/1) ... [2023-11-21 22:09:05,913 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:05" (1/1) ... [2023-11-21 22:09:05,974 INFO L138 Inliner]: procedures = 173, calls = 55, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 319 [2023-11-21 22:09:05,975 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:09:05,976 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:09:05,976 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:09:05,976 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:09:05,985 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:05" (1/1) ... [2023-11-21 22:09:05,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:05" (1/1) ... [2023-11-21 22:09:05,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:05" (1/1) ... [2023-11-21 22:09:05,999 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:05" (1/1) ... [2023-11-21 22:09:06,044 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:05" (1/1) ... [2023-11-21 22:09:06,049 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:05" (1/1) ... [2023-11-21 22:09:06,064 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:05" (1/1) ... [2023-11-21 22:09:06,066 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:05" (1/1) ... [2023-11-21 22:09:06,083 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:09:06,084 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:09:06,084 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:09:06,084 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:09:06,085 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:05" (1/1) ... [2023-11-21 22:09:06,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:09:06,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c69e5ba-4fda-41ec-80e3-81c07cc2c94d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:09:06,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c69e5ba-4fda-41ec-80e3-81c07cc2c94d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:09:06,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c69e5ba-4fda-41ec-80e3-81c07cc2c94d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:09:06,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:09:06,161 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-21 22:09:06,162 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-21 22:09:06,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:09:06,162 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 22:09:06,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:09:06,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:09:06,163 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-21 22:09:06,163 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-21 22:09:06,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:09:06,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:09:06,164 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 22:09:06,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:09:06,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:09:06,168 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:09:06,353 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:09:06,356 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:09:06,981 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:09:07,028 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:09:07,028 INFO L308 CfgBuilder]: Removed 24 assume(true) statements. [2023-11-21 22:09:07,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:09:07 BoogieIcfgContainer [2023-11-21 22:09:07,030 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:09:07,033 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:09:07,033 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:09:07,037 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:09:07,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:09:05" (1/3) ... [2023-11-21 22:09:07,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135ab2a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:09:07, skipping insertion in model container [2023-11-21 22:09:07,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:05" (2/3) ... [2023-11-21 22:09:07,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135ab2a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:09:07, skipping insertion in model container [2023-11-21 22:09:07,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:09:07" (3/3) ... [2023-11-21 22:09:07,040 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2023-11-21 22:09:07,051 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:09:07,063 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:09:07,063 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-21 22:09:07,063 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:09:07,266 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-21 22:09:07,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 323 transitions, 666 flow [2023-11-21 22:09:07,571 INFO L124 PetriNetUnfolderBase]: 61/583 cut-off events. [2023-11-21 22:09:07,572 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-21 22:09:07,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 583 events. 61/583 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3100 event pairs, 0 based on Foata normal form. 0/493 useless extension candidates. Maximal degree in co-relation 327. Up to 8 conditions per place. [2023-11-21 22:09:07,594 INFO L82 GeneralOperation]: Start removeDead. Operand has 294 places, 323 transitions, 666 flow [2023-11-21 22:09:07,610 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 294 places, 323 transitions, 666 flow [2023-11-21 22:09:07,631 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:09:07,639 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7b8b7d6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:09:07,639 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-21 22:09:07,659 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:09:07,659 INFO L124 PetriNetUnfolderBase]: 7/108 cut-off events. [2023-11-21 22:09:07,659 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:09:07,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:09:07,660 INFO L208 CegarLoopForPetriNet]: 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] [2023-11-21 22:09:07,661 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:09:07,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:07,667 INFO L85 PathProgramCache]: Analyzing trace with hash 363768805, now seen corresponding path program 1 times [2023-11-21 22:09:07,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:07,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661509818] [2023-11-21 22:09:07,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:07,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:08,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:09:08,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:09:08,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661509818] [2023-11-21 22:09:08,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661509818] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:09:08,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:09:08,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:09:08,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755927744] [2023-11-21 22:09:08,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:09:08,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:09:08,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:09:08,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:09:08,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:09:08,117 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 323 [2023-11-21 22:09:08,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 323 transitions, 666 flow. Second operand has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 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) [2023-11-21 22:09:08,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:09:08,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 323 [2023-11-21 22:09:08,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:09:09,103 INFO L124 PetriNetUnfolderBase]: 334/3385 cut-off events. [2023-11-21 22:09:09,104 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-11-21 22:09:09,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3996 conditions, 3385 events. 334/3385 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 31856 event pairs, 280 based on Foata normal form. 675/3743 useless extension candidates. Maximal degree in co-relation 3503. Up to 538 conditions per place. [2023-11-21 22:09:09,138 INFO L140 encePairwiseOnDemand]: 292/323 looper letters, 34 selfloop transitions, 2 changer transitions 0/297 dead transitions. [2023-11-21 22:09:09,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 297 transitions, 686 flow [2023-11-21 22:09:09,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:09:09,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:09:09,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 873 transitions. [2023-11-21 22:09:09,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9009287925696594 [2023-11-21 22:09:09,164 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 873 transitions. [2023-11-21 22:09:09,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 873 transitions. [2023-11-21 22:09:09,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:09:09,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 873 transitions. [2023-11-21 22:09:09,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 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) [2023-11-21 22:09:09,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 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) [2023-11-21 22:09:09,190 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 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) [2023-11-21 22:09:09,193 INFO L175 Difference]: Start difference. First operand has 294 places, 323 transitions, 666 flow. Second operand 3 states and 873 transitions. [2023-11-21 22:09:09,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 297 transitions, 686 flow [2023-11-21 22:09:09,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 297 transitions, 686 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:09:09,214 INFO L231 Difference]: Finished difference. Result has 291 places, 289 transitions, 606 flow [2023-11-21 22:09:09,216 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=606, PETRI_PLACES=291, PETRI_TRANSITIONS=289} [2023-11-21 22:09:09,222 INFO L281 CegarLoopForPetriNet]: 294 programPoint places, -3 predicate places. [2023-11-21 22:09:09,222 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 289 transitions, 606 flow [2023-11-21 22:09:09,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 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) [2023-11-21 22:09:09,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:09:09,224 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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] [2023-11-21 22:09:09,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:09:09,225 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:09:09,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:09,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1067952862, now seen corresponding path program 1 times [2023-11-21 22:09:09,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:09,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396360447] [2023-11-21 22:09:09,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:09,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:09,317 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:09:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:09,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:09:09,412 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:09:09,414 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2023-11-21 22:09:09,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2023-11-21 22:09:09,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2023-11-21 22:09:09,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2023-11-21 22:09:09,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2023-11-21 22:09:09,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2023-11-21 22:09:09,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2023-11-21 22:09:09,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2023-11-21 22:09:09,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 24 remaining) [2023-11-21 22:09:09,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2023-11-21 22:09:09,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2023-11-21 22:09:09,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2023-11-21 22:09:09,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2023-11-21 22:09:09,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2023-11-21 22:09:09,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2023-11-21 22:09:09,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2023-11-21 22:09:09,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2023-11-21 22:09:09,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2023-11-21 22:09:09,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2023-11-21 22:09:09,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2023-11-21 22:09:09,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2023-11-21 22:09:09,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2023-11-21 22:09:09,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2023-11-21 22:09:09,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2023-11-21 22:09:09,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:09:09,424 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-21 22:09:09,426 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:09:09,427 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-21 22:09:09,609 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-21 22:09:09,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 488 places, 543 transitions, 1130 flow [2023-11-21 22:09:10,339 INFO L124 PetriNetUnfolderBase]: 205/1722 cut-off events. [2023-11-21 22:09:10,339 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-21 22:09:10,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1811 conditions, 1722 events. 205/1722 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 12522 event pairs, 1 based on Foata normal form. 0/1458 useless extension candidates. Maximal degree in co-relation 1032. Up to 32 conditions per place. [2023-11-21 22:09:10,369 INFO L82 GeneralOperation]: Start removeDead. Operand has 488 places, 543 transitions, 1130 flow [2023-11-21 22:09:10,410 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 488 places, 543 transitions, 1130 flow [2023-11-21 22:09:10,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:09:10,422 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7b8b7d6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:09:10,423 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2023-11-21 22:09:10,436 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:09:10,440 INFO L124 PetriNetUnfolderBase]: 7/108 cut-off events. [2023-11-21 22:09:10,440 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:09:10,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:09:10,441 INFO L208 CegarLoopForPetriNet]: 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] [2023-11-21 22:09:10,442 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2023-11-21 22:09:10,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:10,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1752651522, now seen corresponding path program 1 times [2023-11-21 22:09:10,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:10,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815115669] [2023-11-21 22:09:10,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:10,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:10,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:09:10,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:09:10,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815115669] [2023-11-21 22:09:10,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815115669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:09:10,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:09:10,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:09:10,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311375973] [2023-11-21 22:09:10,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:09:10,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:09:10,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:09:10,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:09:10,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:09:10,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 543 [2023-11-21 22:09:10,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 543 transitions, 1130 flow. Second operand has 3 states, 3 states have (on average 438.3333333333333) internal successors, (1315), 3 states have internal predecessors, (1315), 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) [2023-11-21 22:09:10,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:09:10,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 543 [2023-11-21 22:09:10,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand