./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_72ab3b59-c72a-4a60-aa1d-3fe663e626bf/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ab3b59-c72a-4a60-aa1d-3fe663e626bf/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ab3b59-c72a-4a60-aa1d-3fe663e626bf/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ab3b59-c72a-4a60-aa1d-3fe663e626bf/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ab3b59-c72a-4a60-aa1d-3fe663e626bf/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ab3b59-c72a-4a60-aa1d-3fe663e626bf/bin/uautomizer-verify-4GaUIPS5ZU --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 265daba2b5ad7b4578f16c23ab641f7a5441c3a3894a2482737cba7b750ee6df --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:57:02,016 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:57:02,087 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ab3b59-c72a-4a60-aa1d-3fe663e626bf/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 21:57:02,092 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:57:02,093 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:57:02,118 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:57:02,118 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:57:02,119 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:57:02,120 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:57:02,120 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:57:02,121 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:57:02,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:57:02,122 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:57:02,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:57:02,123 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:57:02,123 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:57:02,124 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:57:02,124 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:57:02,124 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:57:02,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:57:02,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:57:02,126 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:57:02,126 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 21:57:02,127 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:57:02,127 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:57:02,127 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:57:02,128 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:57:02,128 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:57:02,128 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:57:02,129 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:57:02,129 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:57:02,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:57:02,130 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:57:02,130 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:57:02,131 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:57:02,131 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:57:02,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:57:02,132 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:57:02,132 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:57:02,132 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:57:02,133 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:57:02,133 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_72ab3b59-c72a-4a60-aa1d-3fe663e626bf/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ab3b59-c72a-4a60-aa1d-3fe663e626bf/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 265daba2b5ad7b4578f16c23ab641f7a5441c3a3894a2482737cba7b750ee6df [2024-10-31 21:57:02,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:57:02,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:57:02,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:57:02,498 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:57:02,499 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:57:02,500 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ab3b59-c72a-4a60-aa1d-3fe663e626bf/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i Unable to find full path for "g++" [2024-10-31 21:57:04,962 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:57:05,231 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:57:05,232 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ab3b59-c72a-4a60-aa1d-3fe663e626bf/sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i [2024-10-31 21:57:05,251 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ab3b59-c72a-4a60-aa1d-3fe663e626bf/bin/uautomizer-verify-4GaUIPS5ZU/data/b949473fb/34fa0af189554abf8dc495b0a7b9e8e5/FLAG361e97879 [2024-10-31 21:57:05,555 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ab3b59-c72a-4a60-aa1d-3fe663e626bf/bin/uautomizer-verify-4GaUIPS5ZU/data/b949473fb/34fa0af189554abf8dc495b0a7b9e8e5 [2024-10-31 21:57:05,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:57:05,559 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:57:05,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:57:05,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:57:05,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:57:05,570 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:57:05" (1/1) ... [2024-10-31 21:57:05,573 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ff9ce34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:05, skipping insertion in model container [2024-10-31 21:57:05,573 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:57:05" (1/1) ... [2024-10-31 21:57:05,628 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:57:06,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:57:06,241 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:57:06,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:57:06,348 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:57:06,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:06 WrapperNode [2024-10-31 21:57:06,349 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:57:06,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:57:06,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:57:06,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:57:06,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:06" (1/1) ... [2024-10-31 21:57:06,375 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:06" (1/1) ... [2024-10-31 21:57:06,405 INFO L138 Inliner]: procedures = 171, calls = 49, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 105 [2024-10-31 21:57:06,406 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:57:06,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:57:06,407 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:57:06,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:57:06,418 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:06" (1/1) ... [2024-10-31 21:57:06,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:06" (1/1) ... [2024-10-31 21:57:06,422 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:06" (1/1) ... [2024-10-31 21:57:06,423 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:06" (1/1) ... [2024-10-31 21:57:06,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:06" (1/1) ... [2024-10-31 21:57:06,452 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:06" (1/1) ... [2024-10-31 21:57:06,475 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:06" (1/1) ... [2024-10-31 21:57:06,477 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:06" (1/1) ... [2024-10-31 21:57:06,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:57:06,485 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:57:06,489 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:57:06,489 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:57:06,490 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:06" (1/1) ... [2024-10-31 21:57:06,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:57:06,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ab3b59-c72a-4a60-aa1d-3fe663e626bf/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:06,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ab3b59-c72a-4a60-aa1d-3fe663e626bf/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:06,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ab3b59-c72a-4a60-aa1d-3fe663e626bf/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:57:06,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 21:57:06,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 21:57:06,617 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 21:57:06,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:57:06,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 21:57:06,618 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 21:57:06,618 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 21:57:06,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 21:57:06,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 21:57:06,620 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 21:57:06,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:57:06,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:57:06,623 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 21:57:06,761 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:57:06,764 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:57:07,189 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:57:07,189 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:57:07,235 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:57:07,236 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-31 21:57:07,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:57:07 BoogieIcfgContainer [2024-10-31 21:57:07,236 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:57:07,239 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:57:07,239 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:57:07,243 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:57:07,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:57:05" (1/3) ... [2024-10-31 21:57:07,244 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716b8497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:57:07, skipping insertion in model container [2024-10-31 21:57:07,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:06" (2/3) ... [2024-10-31 21:57:07,244 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716b8497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:57:07, skipping insertion in model container [2024-10-31 21:57:07,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:57:07" (3/3) ... [2024-10-31 21:57:07,245 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_11-ptr_racing.i [2024-10-31 21:57:07,260 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:57:07,260 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-10-31 21:57:07,261 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:57:07,369 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 21:57:07,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 171 transitions, 349 flow [2024-10-31 21:57:07,557 INFO L124 PetriNetUnfolderBase]: 19/235 cut-off events. [2024-10-31 21:57:07,558 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 21:57:07,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 235 events. 19/235 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 713 event pairs, 0 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 131. Up to 4 conditions per place. [2024-10-31 21:57:07,569 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 171 transitions, 349 flow [2024-10-31 21:57:07,582 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 171 transitions, 349 flow [2024-10-31 21:57:07,601 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:57:07,610 INFO L333 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, 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;@4c5ae5e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:57:07,611 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-10-31 21:57:07,644 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:57:07,644 INFO L124 PetriNetUnfolderBase]: 2/60 cut-off events. [2024-10-31 21:57:07,645 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:57:07,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:07,646 INFO L204 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] [2024-10-31 21:57:07,646 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-31 21:57:07,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:07,653 INFO L85 PathProgramCache]: Analyzing trace with hash 467652431, now seen corresponding path program 1 times [2024-10-31 21:57:07,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:07,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588656415] [2024-10-31 21:57:07,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:07,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:08,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:08,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:08,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588656415] [2024-10-31 21:57:08,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588656415] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:08,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:08,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:57:08,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584901572] [2024-10-31 21:57:08,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:08,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:57:08,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:08,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:57:08,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:57:09,508 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 171 [2024-10-31 21:57:09,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 171 transitions, 349 flow. Second operand has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 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) [2024-10-31 21:57:09,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:09,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 171 [2024-10-31 21:57:09,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:10,391 INFO L124 PetriNetUnfolderBase]: 579/2152 cut-off events. [2024-10-31 21:57:10,391 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 21:57:10,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3410 conditions, 2152 events. 579/2152 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 15013 event pairs, 372 based on Foata normal form. 224/2225 useless extension candidates. Maximal degree in co-relation 3262. Up to 1080 conditions per place. [2024-10-31 21:57:10,409 INFO L140 encePairwiseOnDemand]: 136/171 looper letters, 73 selfloop transitions, 70 changer transitions 0/250 dead transitions. [2024-10-31 21:57:10,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 250 transitions, 793 flow [2024-10-31 21:57:10,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:57:10,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 21:57:10,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 828 transitions. [2024-10-31 21:57:10,431 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8070175438596491 [2024-10-31 21:57:10,436 INFO L175 Difference]: Start difference. First operand has 161 places, 171 transitions, 349 flow. Second operand 6 states and 828 transitions. [2024-10-31 21:57:10,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 250 transitions, 793 flow [2024-10-31 21:57:10,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 250 transitions, 793 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:57:10,451 INFO L231 Difference]: Finished difference. Result has 169 places, 226 transitions, 783 flow [2024-10-31 21:57:10,453 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=783, PETRI_PLACES=169, PETRI_TRANSITIONS=226} [2024-10-31 21:57:10,459 INFO L277 CegarLoopForPetriNet]: 161 programPoint places, 8 predicate places. [2024-10-31 21:57:10,460 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 226 transitions, 783 flow [2024-10-31 21:57:10,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 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) [2024-10-31 21:57:10,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:10,462 INFO L204 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] [2024-10-31 21:57:10,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:57:10,463 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-31 21:57:10,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:10,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1570351445, now seen corresponding path program 1 times [2024-10-31 21:57:10,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:10,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431611908] [2024-10-31 21:57:10,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:10,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:10,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:10,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:10,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431611908] [2024-10-31 21:57:10,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431611908] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:10,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:10,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:57:10,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692966874] [2024-10-31 21:57:10,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:10,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:57:10,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:10,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:57:10,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:57:10,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 171 [2024-10-31 21:57:10,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 226 transitions, 783 flow. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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) [2024-10-31 21:57:10,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:10,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 171 [2024-10-31 21:57:10,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:10,805 INFO L124 PetriNetUnfolderBase]: 188/1063 cut-off events. [2024-10-31 21:57:10,807 INFO L125 PetriNetUnfolderBase]: For 119/133 co-relation queries the response was YES. [2024-10-31 21:57:10,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1750 conditions, 1063 events. 188/1063 cut-off events. For 119/133 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6099 event pairs, 28 based on Foata normal form. 1/992 useless extension candidates. Maximal degree in co-relation 1641. Up to 191 conditions per place. [2024-10-31 21:57:10,815 INFO L140 encePairwiseOnDemand]: 168/171 looper letters, 22 selfloop transitions, 3 changer transitions 0/232 dead transitions. [2024-10-31 21:57:10,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 232 transitions, 845 flow [2024-10-31 21:57:10,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:57:10,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:57:10,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2024-10-31 21:57:10,818 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8674463937621832 [2024-10-31 21:57:10,818 INFO L175 Difference]: Start difference. First operand has 169 places, 226 transitions, 783 flow. Second operand 3 states and 445 transitions. [2024-10-31 21:57:10,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 232 transitions, 845 flow [2024-10-31 21:57:10,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 232 transitions, 845 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:57:10,835 INFO L231 Difference]: Finished difference. Result has 172 places, 226 transitions, 794 flow [2024-10-31 21:57:10,836 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=783, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=794, PETRI_PLACES=172, PETRI_TRANSITIONS=226} [2024-10-31 21:57:10,837 INFO L277 CegarLoopForPetriNet]: 161 programPoint places, 11 predicate places. [2024-10-31 21:57:10,837 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 226 transitions, 794 flow [2024-10-31 21:57:10,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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) [2024-10-31 21:57:10,837 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:10,838 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:10,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:57:10,838 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-31 21:57:10,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:10,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1630556509, now seen corresponding path program 1 times [2024-10-31 21:57:10,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:10,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000512850] [2024-10-31 21:57:10,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:10,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:11,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:11,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:11,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000512850] [2024-10-31 21:57:11,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000512850] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:11,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:11,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:57:11,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221151882] [2024-10-31 21:57:11,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:11,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:57:11,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:11,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:57:11,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:57:11,785 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 171 [2024-10-31 21:57:11,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 226 transitions, 794 flow. Second operand has 6 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 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) [2024-10-31 21:57:11,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:11,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 171 [2024-10-31 21:57:11,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:12,293 INFO L124 PetriNetUnfolderBase]: 370/1574 cut-off events. [2024-10-31 21:57:12,294 INFO L125 PetriNetUnfolderBase]: For 473/492 co-relation queries the response was YES. [2024-10-31 21:57:12,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3252 conditions, 1574 events. 370/1574 cut-off events. For 473/492 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 10718 event pairs, 96 based on Foata normal form. 2/1519 useless extension candidates. Maximal degree in co-relation 3131. Up to 642 conditions per place. [2024-10-31 21:57:12,306 INFO L140 encePairwiseOnDemand]: 153/171 looper letters, 112 selfloop transitions, 53 changer transitions 0/285 dead transitions. [2024-10-31 21:57:12,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 285 transitions, 1366 flow [2024-10-31 21:57:12,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:57:12,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 21:57:12,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 797 transitions. [2024-10-31 21:57:12,310 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.776803118908382 [2024-10-31 21:57:12,310 INFO L175 Difference]: Start difference. First operand has 172 places, 226 transitions, 794 flow. Second operand 6 states and 797 transitions. [2024-10-31 21:57:12,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 285 transitions, 1366 flow [2024-10-31 21:57:12,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 285 transitions, 1360 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:57:12,322 INFO L231 Difference]: Finished difference. Result has 180 places, 269 transitions, 1276 flow [2024-10-31 21:57:12,323 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1276, PETRI_PLACES=180, PETRI_TRANSITIONS=269} [2024-10-31 21:57:12,324 INFO L277 CegarLoopForPetriNet]: 161 programPoint places, 19 predicate places. [2024-10-31 21:57:12,324 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 269 transitions, 1276 flow [2024-10-31 21:57:12,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 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) [2024-10-31 21:57:12,325 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:12,325 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2024-10-31 21:57:12,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:57:12,326 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-31 21:57:12,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:12,326 INFO L85 PathProgramCache]: Analyzing trace with hash 794013781, now seen corresponding path program 1 times [2024-10-31 21:57:12,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:12,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251361739] [2024-10-31 21:57:12,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:12,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:12,364 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:57:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:12,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:57:12,433 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 21:57:12,435 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-10-31 21:57:12,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-10-31 21:57:12,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-10-31 21:57:12,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-10-31 21:57:12,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-10-31 21:57:12,442 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-10-31 21:57:12,442 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-10-31 21:57:12,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-10-31 21:57:12,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-10-31 21:57:12,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-10-31 21:57:12,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-10-31 21:57:12,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-10-31 21:57:12,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:57:12,447 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-31 21:57:12,453 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 21:57:12,453 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 21:57:12,528 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 21:57:12,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 222 places, 237 transitions, 490 flow [2024-10-31 21:57:12,645 INFO L124 PetriNetUnfolderBase]: 34/393 cut-off events. [2024-10-31 21:57:12,645 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 21:57:12,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 393 events. 34/393 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1497 event pairs, 0 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 237. Up to 8 conditions per place. [2024-10-31 21:57:12,650 INFO L82 GeneralOperation]: Start removeDead. Operand has 222 places, 237 transitions, 490 flow [2024-10-31 21:57:12,655 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 237 transitions, 490 flow [2024-10-31 21:57:12,656 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:57:12,657 INFO L333 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, 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;@4c5ae5e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:57:12,658 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-10-31 21:57:12,666 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:57:12,666 INFO L124 PetriNetUnfolderBase]: 2/60 cut-off events. [2024-10-31 21:57:12,667 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:57:12,667 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:12,667 INFO L204 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] [2024-10-31 21:57:12,667 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 21:57:12,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:12,668 INFO L85 PathProgramCache]: Analyzing trace with hash -83295473, now seen corresponding path program 1 times [2024-10-31 21:57:12,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:12,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258149243] [2024-10-31 21:57:12,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:12,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:13,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:13,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:13,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258149243] [2024-10-31 21:57:13,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258149243] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:13,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:13,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:57:13,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300187550] [2024-10-31 21:57:13,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:13,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:57:13,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:13,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:57:13,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:57:13,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 237 [2024-10-31 21:57:13,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 237 transitions, 490 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 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) [2024-10-31 21:57:13,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:13,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 237 [2024-10-31 21:57:13,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:25,170 INFO L124 PetriNetUnfolderBase]: 29151/68521 cut-off events. [2024-10-31 21:57:25,170 INFO L125 PetriNetUnfolderBase]: For 733/733 co-relation queries the response was YES. [2024-10-31 21:57:25,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114057 conditions, 68521 events. 29151/68521 cut-off events. For 733/733 co-relation queries the response was YES. Maximal size of possible extension queue 1181. Compared 763548 event pairs, 20503 based on Foata normal form. 8143/72555 useless extension candidates. Maximal degree in co-relation 101006. Up to 40549 conditions per place. [2024-10-31 21:57:25,657 INFO L140 encePairwiseOnDemand]: 180/237 looper letters, 122 selfloop transitions, 134 changer transitions 0/399 dead transitions. [2024-10-31 21:57:25,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 399 transitions, 1331 flow [2024-10-31 21:57:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:57:25,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 21:57:25,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1187 transitions. [2024-10-31 21:57:25,663 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8347398030942335 [2024-10-31 21:57:25,663 INFO L175 Difference]: Start difference. First operand has 222 places, 237 transitions, 490 flow. Second operand 6 states and 1187 transitions. [2024-10-31 21:57:25,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 399 transitions, 1331 flow [2024-10-31 21:57:25,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 399 transitions, 1331 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:57:25,685 INFO L231 Difference]: Finished difference. Result has 230 places, 350 transitions, 1328 flow [2024-10-31 21:57:25,686 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1328, PETRI_PLACES=230, PETRI_TRANSITIONS=350} [2024-10-31 21:57:25,689 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 8 predicate places. [2024-10-31 21:57:25,690 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 350 transitions, 1328 flow [2024-10-31 21:57:25,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 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) [2024-10-31 21:57:25,691 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:25,691 INFO L204 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] [2024-10-31 21:57:25,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:57:25,691 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 21:57:25,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:25,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1544665099, now seen corresponding path program 1 times [2024-10-31 21:57:25,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:25,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537116953] [2024-10-31 21:57:25,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:25,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:25,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:25,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:25,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537116953] [2024-10-31 21:57:25,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537116953] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:25,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:25,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:57:25,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222171186] [2024-10-31 21:57:25,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:25,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:57:25,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:25,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:57:25,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:57:25,794 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 237 [2024-10-31 21:57:25,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 350 transitions, 1328 flow. Second operand has 3 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 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) [2024-10-31 21:57:25,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:25,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 237 [2024-10-31 21:57:25,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:31,756 INFO L124 PetriNetUnfolderBase]: 9834/30958 cut-off events. [2024-10-31 21:57:31,756 INFO L125 PetriNetUnfolderBase]: For 5174/5550 co-relation queries the response was YES. [2024-10-31 21:57:31,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55394 conditions, 30958 events. 9834/30958 cut-off events. For 5174/5550 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 350060 event pairs, 3863 based on Foata normal form. 1/28435 useless extension candidates. Maximal degree in co-relation 49398. Up to 9284 conditions per place. [2024-10-31 21:57:32,239 INFO L140 encePairwiseOnDemand]: 234/237 looper letters, 32 selfloop transitions, 3 changer transitions 0/358 dead transitions. [2024-10-31 21:57:32,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 358 transitions, 1420 flow [2024-10-31 21:57:32,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:57:32,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:57:32,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 610 transitions. [2024-10-31 21:57:32,242 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8579465541490858 [2024-10-31 21:57:32,243 INFO L175 Difference]: Start difference. First operand has 230 places, 350 transitions, 1328 flow. Second operand 3 states and 610 transitions. [2024-10-31 21:57:32,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 358 transitions, 1420 flow [2024-10-31 21:57:32,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 358 transitions, 1420 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:57:32,561 INFO L231 Difference]: Finished difference. Result has 233 places, 352 transitions, 1353 flow [2024-10-31 21:57:32,561 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1328, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1353, PETRI_PLACES=233, PETRI_TRANSITIONS=352} [2024-10-31 21:57:32,565 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 11 predicate places. [2024-10-31 21:57:32,567 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 352 transitions, 1353 flow [2024-10-31 21:57:32,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 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) [2024-10-31 21:57:32,568 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:32,568 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:32,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:57:32,568 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 21:57:32,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:32,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1452137411, now seen corresponding path program 1 times [2024-10-31 21:57:32,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:32,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525251778] [2024-10-31 21:57:32,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:32,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:33,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:33,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:33,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525251778] [2024-10-31 21:57:33,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525251778] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:33,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:33,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:57:33,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430861054] [2024-10-31 21:57:33,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:33,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:57:33,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:33,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:57:33,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30