./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/17_szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30505ea-5e9b-4cb9-9ec9-2bee2c0e8798/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30505ea-5e9b-4cb9-9ec9-2bee2c0e8798/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_c30505ea-5e9b-4cb9-9ec9-2bee2c0e8798/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30505ea-5e9b-4cb9-9ec9-2bee2c0e8798/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/17_szymanski.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30505ea-5e9b-4cb9-9ec9-2bee2c0e8798/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_c30505ea-5e9b-4cb9-9ec9-2bee2c0e8798/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 9d000bd3a81a7401f4ccb21c2696e2644e9236d2ccbd2094291c987ec91aaa92 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:22:24,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:22:24,342 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30505ea-5e9b-4cb9-9ec9-2bee2c0e8798/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:22:24,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:22:24,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:22:24,373 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:22:24,374 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:22:24,375 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:22:24,375 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:22:24,376 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:22:24,377 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:22:24,377 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:22:24,378 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:22:24,378 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:22:24,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:22:24,380 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:22:24,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:22:24,381 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:22:24,381 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:22:24,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:22:24,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:22:24,383 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:22:24,384 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:22:24,384 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:22:24,385 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:22:24,385 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:22:24,386 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:22:24,386 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:22:24,387 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:22:24,387 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:22:24,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:22:24,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:22:24,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:22:24,389 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:22:24,389 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:22:24,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:22:24,390 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:22:24,391 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:22:24,391 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:22:24,391 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:22:24,392 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:22:24,392 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_c30505ea-5e9b-4cb9-9ec9-2bee2c0e8798/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30505ea-5e9b-4cb9-9ec9-2bee2c0e8798/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d000bd3a81a7401f4ccb21c2696e2644e9236d2ccbd2094291c987ec91aaa92 [2023-11-21 22:22:24,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:22:24,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:22:24,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:22:24,753 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:22:24,753 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:22:24,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30505ea-5e9b-4cb9-9ec9-2bee2c0e8798/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-ext/17_szymanski.i [2023-11-21 22:22:27,924 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:22:28,235 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:22:28,235 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30505ea-5e9b-4cb9-9ec9-2bee2c0e8798/sv-benchmarks/c/pthread-ext/17_szymanski.i [2023-11-21 22:22:28,259 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30505ea-5e9b-4cb9-9ec9-2bee2c0e8798/bin/uautomizer-verify-bycVGegfSx/data/75ac18ad1/0d45be8898994419bbd095b0c8b8b374/FLAGe6a6ce1c7 [2023-11-21 22:22:28,274 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30505ea-5e9b-4cb9-9ec9-2bee2c0e8798/bin/uautomizer-verify-bycVGegfSx/data/75ac18ad1/0d45be8898994419bbd095b0c8b8b374 [2023-11-21 22:22:28,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:22:28,278 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:22:28,280 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:22:28,280 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:22:28,285 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:22:28,286 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:22:28" (1/1) ... [2023-11-21 22:22:28,287 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14314d0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:28, skipping insertion in model container [2023-11-21 22:22:28,287 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:22:28" (1/1) ... [2023-11-21 22:22:28,359 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:22:28,793 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:22:28,804 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:22:28,864 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:22:28,915 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:22:28,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:28 WrapperNode [2023-11-21 22:22:28,916 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:22:28,917 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:22:28,918 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:22:28,918 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:22:28,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:28" (1/1) ... [2023-11-21 22:22:28,965 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:28" (1/1) ... [2023-11-21 22:22:29,003 INFO L138 Inliner]: procedures = 167, calls = 14, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 186 [2023-11-21 22:22:29,004 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:22:29,006 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:22:29,007 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:22:29,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:22:29,018 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:28" (1/1) ... [2023-11-21 22:22:29,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:28" (1/1) ... [2023-11-21 22:22:29,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:28" (1/1) ... [2023-11-21 22:22:29,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:28" (1/1) ... [2023-11-21 22:22:29,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:28" (1/1) ... [2023-11-21 22:22:29,056 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:28" (1/1) ... [2023-11-21 22:22:29,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:28" (1/1) ... [2023-11-21 22:22:29,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:28" (1/1) ... [2023-11-21 22:22:29,063 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:22:29,064 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:22:29,065 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:22:29,065 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:22:29,066 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:28" (1/1) ... [2023-11-21 22:22:29,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:22:29,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30505ea-5e9b-4cb9-9ec9-2bee2c0e8798/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:29,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30505ea-5e9b-4cb9-9ec9-2bee2c0e8798/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:22:29,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30505ea-5e9b-4cb9-9ec9-2bee2c0e8798/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:22:29,156 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-21 22:22:29,156 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-21 22:22:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:22:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:22:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:22:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:22:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:22:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:22:29,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:22:29,160 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 22:22:29,293 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:22:29,296 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:22:29,617 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:22:29,631 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:22:29,631 INFO L308 CfgBuilder]: Removed 10 assume(true) statements. [2023-11-21 22:22:29,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:22:29 BoogieIcfgContainer [2023-11-21 22:22:29,633 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:22:29,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:22:29,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:22:29,640 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:22:29,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:22:28" (1/3) ... [2023-11-21 22:22:29,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de6aab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:22:29, skipping insertion in model container [2023-11-21 22:22:29,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:28" (2/3) ... [2023-11-21 22:22:29,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de6aab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:22:29, skipping insertion in model container [2023-11-21 22:22:29,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:22:29" (3/3) ... [2023-11-21 22:22:29,643 INFO L112 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2023-11-21 22:22:29,652 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:22:29,664 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:22:29,680 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2023-11-21 22:22:29,680 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:22:29,780 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:22:29,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 215 transitions, 434 flow [2023-11-21 22:22:29,923 INFO L124 PetriNetUnfolderBase]: 28/214 cut-off events. [2023-11-21 22:22:29,923 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:22:29,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 214 events. 28/214 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 556 event pairs, 0 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 198. Up to 3 conditions per place. [2023-11-21 22:22:29,936 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 215 transitions, 434 flow [2023-11-21 22:22:29,946 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 214 transitions, 431 flow [2023-11-21 22:22:29,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:22:29,966 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;@1372ad38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:22:29,966 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-11-21 22:22:29,975 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:22:29,976 INFO L124 PetriNetUnfolderBase]: 2/32 cut-off events. [2023-11-21 22:22:29,976 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:22:29,976 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:29,977 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] [2023-11-21 22:22:29,978 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-21 22:22:29,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:29,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1274685368, now seen corresponding path program 1 times [2023-11-21 22:22:29,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:29,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713705163] [2023-11-21 22:22:29,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:29,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:30,303 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 22:22:30,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:30,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713705163] [2023-11-21 22:22:30,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713705163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:30,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:30,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:30,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117978311] [2023-11-21 22:22:30,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:30,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:30,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:30,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:30,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:30,439 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 215 [2023-11-21 22:22:30,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 214 transitions, 431 flow. Second operand has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 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 22:22:30,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:30,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 215 [2023-11-21 22:22:30,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:30,685 INFO L124 PetriNetUnfolderBase]: 134/874 cut-off events. [2023-11-21 22:22:30,685 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:22:30,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1032 conditions, 874 events. 134/874 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4982 event pairs, 36 based on Foata normal form. 80/734 useless extension candidates. Maximal degree in co-relation 1010. Up to 134 conditions per place. [2023-11-21 22:22:30,702 INFO L140 encePairwiseOnDemand]: 189/215 looper letters, 15 selfloop transitions, 9 changer transitions 0/187 dead transitions. [2023-11-21 22:22:30,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 187 transitions, 425 flow [2023-11-21 22:22:30,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:30,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:30,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 592 transitions. [2023-11-21 22:22:30,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9178294573643411 [2023-11-21 22:22:30,732 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 592 transitions. [2023-11-21 22:22:30,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 592 transitions. [2023-11-21 22:22:30,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:30,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 592 transitions. [2023-11-21 22:22:30,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 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 22:22:30,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 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 22:22:30,754 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 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 22:22:30,755 INFO L175 Difference]: Start difference. First operand has 190 places, 214 transitions, 431 flow. Second operand 3 states and 592 transitions. [2023-11-21 22:22:30,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 187 transitions, 425 flow [2023-11-21 22:22:30,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 187 transitions, 424 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:22:30,768 INFO L231 Difference]: Finished difference. Result has 172 places, 187 transitions, 430 flow [2023-11-21 22:22:30,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=430, PETRI_PLACES=172, PETRI_TRANSITIONS=187} [2023-11-21 22:22:30,774 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -18 predicate places. [2023-11-21 22:22:30,775 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 187 transitions, 430 flow [2023-11-21 22:22:30,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 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 22:22:30,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:30,776 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] [2023-11-21 22:22:30,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:22:30,777 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-21 22:22:30,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:30,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1949623021, now seen corresponding path program 1 times [2023-11-21 22:22:30,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:30,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256306353] [2023-11-21 22:22:30,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:30,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:30,849 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 22:22:30,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:30,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256306353] [2023-11-21 22:22:30,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256306353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:30,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:30,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:30,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734618409] [2023-11-21 22:22:30,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:30,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:30,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:30,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:30,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:30,906 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 215 [2023-11-21 22:22:30,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 187 transitions, 430 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 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 22:22:30,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:30,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 215 [2023-11-21 22:22:30,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:31,372 INFO L124 PetriNetUnfolderBase]: 416/2468 cut-off events. [2023-11-21 22:22:31,373 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2023-11-21 22:22:31,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3230 conditions, 2468 events. 416/2468 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 19835 event pairs, 11 based on Foata normal form. 0/1890 useless extension candidates. Maximal degree in co-relation 3207. Up to 216 conditions per place. [2023-11-21 22:22:31,398 INFO L140 encePairwiseOnDemand]: 192/215 looper letters, 24 selfloop transitions, 17 changer transitions 0/204 dead transitions. [2023-11-21 22:22:31,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 204 transitions, 546 flow [2023-11-21 22:22:31,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:31,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:31,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 566 transitions. [2023-11-21 22:22:31,401 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8775193798449612 [2023-11-21 22:22:31,401 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 566 transitions. [2023-11-21 22:22:31,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 566 transitions. [2023-11-21 22:22:31,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:31,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 566 transitions. [2023-11-21 22:22:31,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 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 22:22:31,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 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 22:22:31,409 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 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 22:22:31,410 INFO L175 Difference]: Start difference. First operand has 172 places, 187 transitions, 430 flow. Second operand 3 states and 566 transitions. [2023-11-21 22:22:31,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 204 transitions, 546 flow [2023-11-21 22:22:31,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 204 transitions, 528 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:22:31,426 INFO L231 Difference]: Finished difference. Result has 174 places, 204 transitions, 560 flow [2023-11-21 22:22:31,427 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=560, PETRI_PLACES=174, PETRI_TRANSITIONS=204} [2023-11-21 22:22:31,429 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -16 predicate places. [2023-11-21 22:22:31,430 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 204 transitions, 560 flow [2023-11-21 22:22:31,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 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 22:22:31,431 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:31,431 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] [2023-11-21 22:22:31,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:22:31,432 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-21 22:22:31,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:31,434 INFO L85 PathProgramCache]: Analyzing trace with hash 313157719, now seen corresponding path program 1 times [2023-11-21 22:22:31,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:31,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980993682] [2023-11-21 22:22:31,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:31,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:31,535 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 22:22:31,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:31,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980993682] [2023-11-21 22:22:31,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980993682] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:31,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:31,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:31,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708340570] [2023-11-21 22:22:31,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:31,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:31,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:31,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:31,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:31,597 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 215 [2023-11-21 22:22:31,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 204 transitions, 560 flow. Second operand has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 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 22:22:31,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:31,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 215 [2023-11-21 22:22:31,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:31,985 INFO L124 PetriNetUnfolderBase]: 513/2781 cut-off events. [2023-11-21 22:22:31,985 INFO L125 PetriNetUnfolderBase]: For 493/552 co-relation queries the response was YES. [2023-11-21 22:22:31,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4181 conditions, 2781 events. 513/2781 cut-off events. For 493/552 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 22594 event pairs, 20 based on Foata normal form. 1/2168 useless extension candidates. Maximal degree in co-relation 4157. Up to 399 conditions per place. [2023-11-21 22:22:32,012 INFO L140 encePairwiseOnDemand]: 205/215 looper letters, 26 selfloop transitions, 16 changer transitions 0/218 dead transitions. [2023-11-21 22:22:32,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 218 transitions, 708 flow [2023-11-21 22:22:32,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:32,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:32,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 563 transitions. [2023-11-21 22:22:32,016 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8728682170542635 [2023-11-21 22:22:32,016 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 563 transitions. [2023-11-21 22:22:32,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 563 transitions. [2023-11-21 22:22:32,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:32,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 563 transitions. [2023-11-21 22:22:32,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 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 22:22:32,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 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 22:22:32,023 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 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 22:22:32,023 INFO L175 Difference]: Start difference. First operand has 174 places, 204 transitions, 560 flow. Second operand 3 states and 563 transitions. [2023-11-21 22:22:32,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 218 transitions, 708 flow [2023-11-21 22:22:32,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 218 transitions, 662 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:22:32,037 INFO L231 Difference]: Finished difference. Result has 176 places, 218 transitions, 672 flow [2023-11-21 22:22:32,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=672, PETRI_PLACES=176, PETRI_TRANSITIONS=218} [2023-11-21 22:22:32,039 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -14 predicate places. [2023-11-21 22:22:32,039 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 218 transitions, 672 flow [2023-11-21 22:22:32,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 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 22:22:32,041 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:32,041 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] [2023-11-21 22:22:32,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:22:32,042 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-21 22:22:32,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:32,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1779788048, now seen corresponding path program 1 times [2023-11-21 22:22:32,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:32,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828985818] [2023-11-21 22:22:32,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:32,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:32,140 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 22:22:32,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:32,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828985818] [2023-11-21 22:22:32,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828985818] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:32,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:32,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:32,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852388528] [2023-11-21 22:22:32,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:32,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:32,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:32,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:32,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:32,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 215 [2023-11-21 22:22:32,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 218 transitions, 672 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 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 22:22:32,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:32,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 215 [2023-11-21 22:22:32,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:32,659 INFO L124 PetriNetUnfolderBase]: 752/3495 cut-off events. [2023-11-21 22:22:32,659 INFO L125 PetriNetUnfolderBase]: For 665/703 co-relation queries the response was YES. [2023-11-21 22:22:32,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5446 conditions, 3495 events. 752/3495 cut-off events. For 665/703 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 29901 event pairs, 93 based on Foata normal form. 1/2679 useless extension candidates. Maximal degree in co-relation 5421. Up to 467 conditions per place. [2023-11-21 22:22:32,692 INFO L140 encePairwiseOnDemand]: 205/215 looper letters, 21 selfloop transitions, 9 changer transitions 0/226 dead transitions. [2023-11-21 22:22:32,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 226 transitions, 760 flow [2023-11-21 22:22:32,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:32,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:32,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 568 transitions. [2023-11-21 22:22:32,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8806201550387597 [2023-11-21 22:22:32,696 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 568 transitions. [2023-11-21 22:22:32,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 568 transitions. [2023-11-21 22:22:32,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:32,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 568 transitions. [2023-11-21 22:22:32,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 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 22:22:32,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 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 22:22:32,702 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 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 22:22:32,702 INFO L175 Difference]: Start difference. First operand has 176 places, 218 transitions, 672 flow. Second operand 3 states and 568 transitions. [2023-11-21 22:22:32,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 226 transitions, 760 flow [2023-11-21 22:22:32,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 226 transitions, 728 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:22:32,711 INFO L231 Difference]: Finished difference. Result has 178 places, 226 transitions, 722 flow [2023-11-21 22:22:32,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=178, PETRI_TRANSITIONS=226} [2023-11-21 22:22:32,712 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -12 predicate places. [2023-11-21 22:22:32,713 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 226 transitions, 722 flow [2023-11-21 22:22:32,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 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 22:22:32,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:32,713 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] [2023-11-21 22:22:32,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:22:32,714 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-21 22:22:32,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:32,715 INFO L85 PathProgramCache]: Analyzing trace with hash 613024684, now seen corresponding path program 1 times [2023-11-21 22:22:32,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:32,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499153017] [2023-11-21 22:22:32,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:32,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:32,761 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 22:22:32,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:32,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499153017] [2023-11-21 22:22:32,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499153017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:32,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:32,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:32,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221922173] [2023-11-21 22:22:32,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:32,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:32,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:32,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:32,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:32,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 215 [2023-11-21 22:22:32,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 226 transitions, 722 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 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 22:22:32,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:32,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 215 [2023-11-21 22:22:32,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:33,361 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([390] L708-1-->L708-2: Formula: (= |v_ULTIMATE.start_thr2_#t~nondet11#1_4| |v_#race~flag2~0_25|) InVars {ULTIMATE.start_thr2_#t~nondet11#1=|v_ULTIMATE.start_thr2_#t~nondet11#1_4|} OutVars{#race~flag2~0=|v_#race~flag2~0_25|, ULTIMATE.start_thr2_#t~nondet11#1=|v_ULTIMATE.start_thr2_#t~nondet11#1_4|} AuxVars[] AssignedVars[#race~flag2~0][94], [thr1Thread1of1ForFork0InUse, Black: 208#(= |ULTIMATE.start_thr2_#t~nondet10#1| |#race~flag2~0|), 220#(= |#race~flag1~0| 0), Black: 196#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet3#1|), Black: 214#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet4#1|), 169#L708-2true, 50#L689-2true, Black: 202#(= |#race~flag2~0| 0), 212#true]) [2023-11-21 22:22:33,362 INFO L294 olderBase$Statistics]: this new event has 87 ancestors and is cut-off event [2023-11-21 22:22:33,366 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-11-21 22:22:33,366 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-11-21 22:22:33,367 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-11-21 22:22:33,385 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([573] L690-1-->L690-2: Formula: (= |v_#race~flag1~0_7| |v_thr1Thread1of1ForFork0_#t~nondet4#1_3|) InVars {thr1Thread1of1ForFork0_#t~nondet4#1=|v_thr1Thread1of1ForFork0_#t~nondet4#1_3|} OutVars{thr1Thread1of1ForFork0_#t~nondet4#1=|v_thr1Thread1of1ForFork0_#t~nondet4#1_3|, #race~flag1~0=|v_#race~flag1~0_7|} AuxVars[] AssignedVars[#race~flag1~0][93], [214#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet4#1|), thr1Thread1of1ForFork0InUse, Black: 208#(= |ULTIMATE.start_thr2_#t~nondet10#1| |#race~flag2~0|), Black: 196#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet3#1|), Black: 212#true, 151#L707-2true, 218#true, Black: 200#true, 167#L690-2true]) [2023-11-21 22:22:33,385 INFO L294 olderBase$Statistics]: this new event has 87 ancestors and is cut-off event [2023-11-21 22:22:33,385 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-11-21 22:22:33,385 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-11-21 22:22:33,385 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-11-21 22:22:33,437 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([586] L692-2-->L692-3: Formula: (= |v_thr1Thread1of1ForFork0_#t~nondet5#1_3| |v_#race~flag1~0_10|) InVars {thr1Thread1of1ForFork0_#t~nondet5#1=|v_thr1Thread1of1ForFork0_#t~nondet5#1_3|} OutVars{thr1Thread1of1ForFork0_#t~nondet5#1=|v_thr1Thread1of1ForFork0_#t~nondet5#1_3|, #race~flag1~0=|v_#race~flag1~0_10|} AuxVars[] AssignedVars[#race~flag1~0][148], [thr1Thread1of1ForFork0InUse, 183#L692-3true, Black: 208#(= |ULTIMATE.start_thr2_#t~nondet10#1| |#race~flag2~0|), Black: 196#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet3#1|), Black: 214#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet4#1|), 151#L707-2true, Black: 200#true, 218#true, 212#true]) [2023-11-21 22:22:33,438 INFO L294 olderBase$Statistics]: this new event has 95 ancestors and is cut-off event [2023-11-21 22:22:33,442 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2023-11-21 22:22:33,443 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2023-11-21 22:22:33,443 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2023-11-21 22:22:33,443 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([587] L695-1-->L695-2: Formula: (= |v_thr1Thread1of1ForFork0_#t~nondet6#1_3| |v_#race~flag1~0_13|) InVars {thr1Thread1of1ForFork0_#t~nondet6#1=|v_thr1Thread1of1ForFork0_#t~nondet6#1_3|} OutVars{#race~flag1~0=|v_#race~flag1~0_13|, thr1Thread1of1ForFork0_#t~nondet6#1=|v_thr1Thread1of1ForFork0_#t~nondet6#1_3|} AuxVars[] AssignedVars[#race~flag1~0][147], [thr1Thread1of1ForFork0InUse, 9#L695-2true, Black: 208#(= |ULTIMATE.start_thr2_#t~nondet10#1| |#race~flag2~0|), Black: 196#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet3#1|), Black: 214#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet4#1|), 151#L707-2true, Black: 200#true, 218#true, 212#true]) [2023-11-21 22:22:33,444 INFO L294 olderBase$Statistics]: this new event has 95 ancestors and is cut-off event [2023-11-21 22:22:33,444 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2023-11-21 22:22:33,444 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2023-11-21 22:22:33,444 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2023-11-21 22:22:33,456 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([390] L708-1-->L708-2: Formula: (= |v_ULTIMATE.start_thr2_#t~nondet11#1_4| |v_#race~flag2~0_25|) InVars {ULTIMATE.start_thr2_#t~nondet11#1=|v_ULTIMATE.start_thr2_#t~nondet11#1_4|} OutVars{#race~flag2~0=|v_#race~flag2~0_25|, ULTIMATE.start_thr2_#t~nondet11#1=|v_ULTIMATE.start_thr2_#t~nondet11#1_4|} AuxVars[] AssignedVars[#race~flag2~0][94], [thr1Thread1of1ForFork0InUse, 220#(= |#race~flag1~0| 0), Black: 208#(= |ULTIMATE.start_thr2_#t~nondet10#1| |#race~flag2~0|), 110#L691-2true, Black: 196#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet3#1|), Black: 214#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet4#1|), 169#L708-2true, Black: 202#(= |#race~flag2~0| 0), 212#true]) [2023-11-21 22:22:33,456 INFO L294 olderBase$Statistics]: this new event has 95 ancestors and is cut-off event [2023-11-21 22:22:33,456 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2023-11-21 22:22:33,456 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2023-11-21 22:22:33,456 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2023-11-21 22:22:33,557 INFO L124 PetriNetUnfolderBase]: 1386/5846 cut-off events. [2023-11-21 22:22:33,557 INFO L125 PetriNetUnfolderBase]: For 2105/2187 co-relation queries the response was YES. [2023-11-21 22:22:33,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10082 conditions, 5846 events. 1386/5846 cut-off events. For 2105/2187 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 54504 event pairs, 37 based on Foata normal form. 13/4636 useless extension candidates. Maximal degree in co-relation 10056. Up to 713 conditions per place. [2023-11-21 22:22:33,621 INFO L140 encePairwiseOnDemand]: 192/215 looper letters, 36 selfloop transitions, 29 changer transitions 0/255 dead transitions. [2023-11-21 22:22:33,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 255 transitions, 988 flow [2023-11-21 22:22:33,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:33,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:33,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 566 transitions. [2023-11-21 22:22:33,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8775193798449612 [2023-11-21 22:22:33,682 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 566 transitions. [2023-11-21 22:22:33,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 566 transitions. [2023-11-21 22:22:33,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:33,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 566 transitions. [2023-11-21 22:22:33,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 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 22:22:33,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 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 22:22:33,687 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 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 22:22:33,688 INFO L175 Difference]: Start difference. First operand has 178 places, 226 transitions, 722 flow. Second operand 3 states and 566 transitions. [2023-11-21 22:22:33,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 255 transitions, 988 flow [2023-11-21 22:22:33,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 255 transitions, 932 flow, removed 12 selfloop flow, removed 2 redundant places. [2023-11-21 22:22:33,702 INFO L231 Difference]: Finished difference. Result has 180 places, 255 transitions, 988 flow [2023-11-21 22:22:33,703 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=988, PETRI_PLACES=180, PETRI_TRANSITIONS=255} [2023-11-21 22:22:33,704 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -10 predicate places. [2023-11-21 22:22:33,704 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 255 transitions, 988 flow [2023-11-21 22:22:33,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 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 22:22:33,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:33,705 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] [2023-11-21 22:22:33,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:22:33,705 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-21 22:22:33,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:33,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1029478962, now seen corresponding path program 1 times [2023-11-21 22:22:33,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:33,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152394948] [2023-11-21 22:22:33,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:33,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:22:33,723 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:22:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:22:33,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:22:33,759 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:22:33,760 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2023-11-21 22:22:33,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2023-11-21 22:22:33,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2023-11-21 22:22:33,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2023-11-21 22:22:33,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2023-11-21 22:22:33,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2023-11-21 22:22:33,768 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2023-11-21 22:22:33,768 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2023-11-21 22:22:33,768 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2023-11-21 22:22:33,768 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2023-11-21 22:22:33,769 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2023-11-21 22:22:33,769 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2023-11-21 22:22:33,769 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2023-11-21 22:22:33,769 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2023-11-21 22:22:33,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2023-11-21 22:22:33,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2023-11-21 22:22:33,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2023-11-21 22:22:33,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2023-11-21 22:22:33,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2023-11-21 22:22:33,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2023-11-21 22:22:33,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2023-11-21 22:22:33,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2023-11-21 22:22:33,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2023-11-21 22:22:33,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2023-11-21 22:22:33,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2023-11-21 22:22:33,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2023-11-21 22:22:33,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2023-11-21 22:22:33,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 40 remaining) [2023-11-21 22:22:33,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2023-11-21 22:22:33,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2023-11-21 22:22:33,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2023-11-21 22:22:33,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2023-11-21 22:22:33,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2023-11-21 22:22:33,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2023-11-21 22:22:33,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2023-11-21 22:22:33,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2023-11-21 22:22:33,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2023-11-21 22:22:33,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2023-11-21 22:22:33,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2023-11-21 22:22:33,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2023-11-21 22:22:33,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:22:33,782 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-21 22:22:33,791 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 22:22:33,791 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:22:33,815 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-21 22:22:33,817 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-21 22:22:33,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:22:33 BasicIcfg [2023-11-21 22:22:33,826 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:22:33,827 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:22:33,827 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:22:33,827 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:22:33,828 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:22:29" (3/4) ... [2023-11-21 22:22:33,830 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:22:33,831 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:22:33,832 INFO L158 Benchmark]: Toolchain (without parser) took 5553.68ms. Allocated memory was 172.0MB in the beginning and 264.2MB in the end (delta: 92.3MB). Free memory was 141.2MB in the beginning and 191.6MB in the end (delta: -50.4MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2023-11-21 22:22:33,832 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory was 97.7MB in the beginning and 97.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:22:33,833 INFO L158 Benchmark]: CACSL2BoogieTranslator took 636.61ms. Allocated memory is still 172.0MB. Free memory was 141.2MB in the beginning and 123.3MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 22:22:33,833 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.97ms. Allocated memory is still 172.0MB. Free memory was 123.3MB in the beginning and 121.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:22:33,834 INFO L158 Benchmark]: Boogie Preprocessor took 57.33ms. Allocated memory is still 172.0MB. Free memory was 121.2MB in the beginning and 120.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:22:33,834 INFO L158 Benchmark]: RCFGBuilder took 568.98ms. Allocated memory is still 172.0MB. Free memory was 120.0MB in the beginning and 101.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 22:22:33,835 INFO L158 Benchmark]: TraceAbstraction took 4190.19ms. Allocated memory was 172.0MB in the beginning and 264.2MB in the end (delta: 92.3MB). Free memory was 100.2MB in the beginning and 192.7MB in the end (delta: -92.4MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2023-11-21 22:22:33,835 INFO L158 Benchmark]: Witness Printer took 4.38ms. Allocated memory is still 264.2MB. Free memory was 192.7MB in the beginning and 191.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:22:33,838 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory was 97.7MB in the beginning and 97.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 636.61ms. Allocated memory is still 172.0MB. Free memory was 141.2MB in the beginning and 123.3MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.97ms. Allocated memory is still 172.0MB. Free memory was 123.3MB in the beginning and 121.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.33ms. Allocated memory is still 172.0MB. Free memory was 121.2MB in the beginning and 120.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 568.98ms. Allocated memory is still 172.0MB. Free memory was 120.0MB in the beginning and 101.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4190.19ms. Allocated memory was 172.0MB in the beginning and 264.2MB in the end (delta: 92.3MB). Free memory was 100.2MB in the beginning and 192.7MB in the end (delta: -92.4MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. * Witness Printer took 4.38ms. Allocated memory is still 264.2MB. Free memory was 192.7MB in the beginning and 191.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 689]: Data race detected [2023-11-21 22:22:33,856 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-21 22:22:33,858 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-21 22:22:33,867 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-21 22:22:33,868 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated Data race detected The following path leads to a data race: [L684] 0 int flag1 = 0, flag2 = 0; VAL [flag1=0, flag2=0] [L685] 0 int x; VAL [flag1=0, flag2=0, x=0] [L724] 0 pthread_t t; VAL [flag1=0, flag2=0, t={3:0}, x=0] [L725] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [flag1=0, flag2=0, t={3:0}, x=0] [L726] CALL 0 thr2(0) [L705] COND TRUE 0 1 VAL [arg={0:0}, arg={0:0}, flag1=0, flag2=0, x=0] [L706] 0 flag2 = 1 VAL [arg={0:0}, arg={0:0}, flag1=0, flag2=1, x=0] [L687] COND TRUE 1 1 VAL [arg={0:0}, arg={0:0}, flag1=0, flag2=1, x=0] [L688] 1 flag1 = 1 VAL [arg={0:0}, arg={0:0}, flag1=1, flag2=1, x=0] [L689] 1 flag2 >= 3 VAL [arg={0:0}, arg={0:0}, flag1=1, flag2=1, x=0] [L706] 0 flag2 = 1 VAL [arg={0:0}, arg={0:0}, flag1=1, flag2=1, x=0] [L689] 1 flag2 >= 3 VAL [arg={0:0}, arg={0:0}, flag1=1, flag2=1, x=0] Now there is a data race on ~flag2~0 between C: flag2 = 1 [706] and C: flag2 >= 3 [689] - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 268 locations, 40 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 341 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 88 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 267 IncrementalHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 88 mSDtfsCounter, 267 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=988occurred in iteration=5, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 139 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-21 22:22:33,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30505ea-5e9b-4cb9-9ec9-2bee2c0e8798/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE