./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 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_c11cc1b6-02c0-43a6-ad7e-07c3cfdedf34/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c11cc1b6-02c0-43a6-ad7e-07c3cfdedf34/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c11cc1b6-02c0-43a6-ad7e-07c3cfdedf34/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c11cc1b6-02c0-43a6-ad7e-07c3cfdedf34/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c11cc1b6-02c0-43a6-ad7e-07c3cfdedf34/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c11cc1b6-02c0-43a6-ad7e-07c3cfdedf34/bin/uautomizer-verify-zZY32mL2XJ --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 504de2e820c504d0b98f5b71c19407f1b43c0dd9338639fad4f2fe6ea2f6854f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:43:14,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:43:14,524 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c11cc1b6-02c0-43a6-ad7e-07c3cfdedf34/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 22:43:14,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:43:14,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:43:14,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:43:14,573 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:43:14,574 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:43:14,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:43:14,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:43:14,583 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:43:14,584 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:43:14,584 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:43:14,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:43:14,587 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:43:14,588 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:43:14,588 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:43:14,589 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:43:14,589 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:43:14,590 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:43:14,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:43:14,591 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:43:14,592 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 22:43:14,592 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:43:14,593 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:43:14,593 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:43:14,594 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:43:14,595 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:43:14,596 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:43:14,596 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:43:14,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:43:14,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:43:14,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:43:14,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:43:14,599 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:43:14,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:43:14,600 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:43:14,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:43:14,600 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:43:14,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:43:14,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:43:14,602 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_c11cc1b6-02c0-43a6-ad7e-07c3cfdedf34/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c11cc1b6-02c0-43a6-ad7e-07c3cfdedf34/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 504de2e820c504d0b98f5b71c19407f1b43c0dd9338639fad4f2fe6ea2f6854f [2023-11-23 22:43:15,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:43:15,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:43:15,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:43:15,049 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:43:15,049 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:43:15,051 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c11cc1b6-02c0-43a6-ad7e-07c3cfdedf34/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2023-11-23 22:43:18,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:43:18,596 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:43:18,597 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c11cc1b6-02c0-43a6-ad7e-07c3cfdedf34/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2023-11-23 22:43:18,608 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c11cc1b6-02c0-43a6-ad7e-07c3cfdedf34/bin/uautomizer-verify-zZY32mL2XJ/data/72ac1a529/5b6116886d1c482595a3fd704cc2deb6/FLAG1e54c3b81 [2023-11-23 22:43:18,623 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c11cc1b6-02c0-43a6-ad7e-07c3cfdedf34/bin/uautomizer-verify-zZY32mL2XJ/data/72ac1a529/5b6116886d1c482595a3fd704cc2deb6 [2023-11-23 22:43:18,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:43:18,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:43:18,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:43:18,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:43:18,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:43:18,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:43:18" (1/1) ... [2023-11-23 22:43:18,637 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ca8bdba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:18, skipping insertion in model container [2023-11-23 22:43:18,637 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:43:18" (1/1) ... [2023-11-23 22:43:18,687 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:43:19,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:43:19,027 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:43:19,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:43:19,118 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:19,119 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:19,127 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:43:19,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:19 WrapperNode [2023-11-23 22:43:19,128 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:43:19,129 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:43:19,130 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:43:19,131 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:43:19,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:19" (1/1) ... [2023-11-23 22:43:19,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:19" (1/1) ... [2023-11-23 22:43:19,246 INFO L138 Inliner]: procedures = 25, calls = 99, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 550 [2023-11-23 22:43:19,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:43:19,258 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:43:19,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:43:19,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:43:19,272 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:19" (1/1) ... [2023-11-23 22:43:19,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:19" (1/1) ... [2023-11-23 22:43:19,287 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:19" (1/1) ... [2023-11-23 22:43:19,290 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:19" (1/1) ... [2023-11-23 22:43:19,326 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:19" (1/1) ... [2023-11-23 22:43:19,342 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:19" (1/1) ... [2023-11-23 22:43:19,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:19" (1/1) ... [2023-11-23 22:43:19,361 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:19" (1/1) ... [2023-11-23 22:43:19,366 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:43:19,367 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:43:19,367 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:43:19,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:43:19,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:19" (1/1) ... [2023-11-23 22:43:19,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:43:19,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c11cc1b6-02c0-43a6-ad7e-07c3cfdedf34/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:19,407 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c11cc1b6-02c0-43a6-ad7e-07c3cfdedf34/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:19,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c11cc1b6-02c0-43a6-ad7e-07c3cfdedf34/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:43:19,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:43:19,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:43:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 22:43:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 22:43:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 22:43:19,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 22:43:19,467 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 22:43:19,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 22:43:19,467 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-23 22:43:19,468 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-23 22:43:19,468 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-23 22:43:19,468 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-23 22:43:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 22:43:19,471 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-23 22:43:19,471 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-23 22:43:19,471 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-23 22:43:19,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-23 22:43:19,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 22:43:19,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 22:43:19,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:43:19,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:43:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:43:19,476 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 22:43:19,718 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:43:19,721 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:43:20,564 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:43:20,845 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:43:20,846 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 22:43:20,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:43:20 BoogieIcfgContainer [2023-11-23 22:43:20,849 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:43:20,854 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:43:20,854 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:43:20,859 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:43:20,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:43:18" (1/3) ... [2023-11-23 22:43:20,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7461c71f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:43:20, skipping insertion in model container [2023-11-23 22:43:20,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:19" (2/3) ... [2023-11-23 22:43:20,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7461c71f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:43:20, skipping insertion in model container [2023-11-23 22:43:20,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:43:20" (3/3) ... [2023-11-23 22:43:20,864 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2023-11-23 22:43:20,876 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 22:43:20,889 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:43:20,889 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2023-11-23 22:43:20,889 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 22:43:21,138 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-11-23 22:43:21,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 486 places, 481 transitions, 1028 flow [2023-11-23 22:43:21,536 INFO L124 PetriNetUnfolderBase]: 14/441 cut-off events. [2023-11-23 22:43:21,536 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-23 22:43:21,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 441 events. 14/441 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 784 event pairs, 0 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 368. Up to 3 conditions per place. [2023-11-23 22:43:21,556 INFO L82 GeneralOperation]: Start removeDead. Operand has 486 places, 481 transitions, 1028 flow [2023-11-23 22:43:21,574 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 424 places, 417 transitions, 882 flow [2023-11-23 22:43:21,586 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:43:21,595 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;@5bd2dee8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:43:21,595 INFO L358 AbstractCegarLoop]: Starting to check reachability of 144 error locations. [2023-11-23 22:43:21,607 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:43:21,607 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2023-11-23 22:43:21,607 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:43:21,608 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:21,608 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] [2023-11-23 22:43:21,609 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-23 22:43:21,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:21,615 INFO L85 PathProgramCache]: Analyzing trace with hash 324629262, now seen corresponding path program 1 times [2023-11-23 22:43:21,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:21,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717303625] [2023-11-23 22:43:21,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:21,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:21,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:21,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:21,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717303625] [2023-11-23 22:43:21,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717303625] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:21,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:21,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:21,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916981214] [2023-11-23 22:43:21,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:21,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:21,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:22,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:22,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:22,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 485 [2023-11-23 22:43:22,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 417 transitions, 882 flow. Second operand has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 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) [2023-11-23 22:43:22,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:22,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 485 [2023-11-23 22:43:22,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:30,756 INFO L124 PetriNetUnfolderBase]: 11752/20435 cut-off events. [2023-11-23 22:43:30,756 INFO L125 PetriNetUnfolderBase]: For 4674/5162 co-relation queries the response was YES. [2023-11-23 22:43:30,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41065 conditions, 20435 events. 11752/20435 cut-off events. For 4674/5162 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 158738 event pairs, 10673 based on Foata normal form. 84/18982 useless extension candidates. Maximal degree in co-relation 40241. Up to 16165 conditions per place. [2023-11-23 22:43:31,256 INFO L140 encePairwiseOnDemand]: 435/485 looper letters, 46 selfloop transitions, 2 changer transitions 1/369 dead transitions. [2023-11-23 22:43:31,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 369 transitions, 882 flow [2023-11-23 22:43:31,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:31,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:31,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1230 transitions. [2023-11-23 22:43:31,290 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.845360824742268 [2023-11-23 22:43:31,291 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1230 transitions. [2023-11-23 22:43:31,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1230 transitions. [2023-11-23 22:43:31,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:31,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1230 transitions. [2023-11-23 22:43:31,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 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) [2023-11-23 22:43:31,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 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) [2023-11-23 22:43:31,328 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 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) [2023-11-23 22:43:31,330 INFO L175 Difference]: Start difference. First operand has 424 places, 417 transitions, 882 flow. Second operand 3 states and 1230 transitions. [2023-11-23 22:43:31,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 369 transitions, 882 flow [2023-11-23 22:43:31,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 369 transitions, 850 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-23 22:43:31,411 INFO L231 Difference]: Finished difference. Result has 369 places, 368 transitions, 756 flow [2023-11-23 22:43:31,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=756, PETRI_PLACES=369, PETRI_TRANSITIONS=368} [2023-11-23 22:43:31,420 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -55 predicate places. [2023-11-23 22:43:31,421 INFO L495 AbstractCegarLoop]: Abstraction has has 369 places, 368 transitions, 756 flow [2023-11-23 22:43:31,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 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) [2023-11-23 22:43:31,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:31,423 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:31,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:43:31,424 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-23 22:43:31,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:31,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1735873499, now seen corresponding path program 1 times [2023-11-23 22:43:31,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:31,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537721278] [2023-11-23 22:43:31,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:31,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:31,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:31,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:31,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537721278] [2023-11-23 22:43:31,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537721278] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:31,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:31,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:31,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526880751] [2023-11-23 22:43:31,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:31,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:31,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:31,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:31,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:31,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 485 [2023-11-23 22:43:31,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 368 transitions, 756 flow. Second operand has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 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) [2023-11-23 22:43:31,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:31,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 485 [2023-11-23 22:43:31,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:38,020 INFO L124 PetriNetUnfolderBase]: 11752/20498 cut-off events. [2023-11-23 22:43:38,020 INFO L125 PetriNetUnfolderBase]: For 1130/1618 co-relation queries the response was YES. [2023-11-23 22:43:38,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37800 conditions, 20498 events. 11752/20498 cut-off events. For 1130/1618 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 158272 event pairs, 10673 based on Foata normal form. 0/18938 useless extension candidates. Maximal degree in co-relation 37763. Up to 16165 conditions per place. [2023-11-23 22:43:38,449 INFO L140 encePairwiseOnDemand]: 482/485 looper letters, 46 selfloop transitions, 2 changer transitions 0/367 dead transitions. [2023-11-23 22:43:38,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 367 transitions, 850 flow [2023-11-23 22:43:38,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:38,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:38,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1183 transitions. [2023-11-23 22:43:38,458 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8130584192439863 [2023-11-23 22:43:38,459 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1183 transitions. [2023-11-23 22:43:38,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1183 transitions. [2023-11-23 22:43:38,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:38,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1183 transitions. [2023-11-23 22:43:38,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 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) [2023-11-23 22:43:38,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 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) [2023-11-23 22:43:38,477 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 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) [2023-11-23 22:43:38,481 INFO L175 Difference]: Start difference. First operand has 369 places, 368 transitions, 756 flow. Second operand 3 states and 1183 transitions. [2023-11-23 22:43:38,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 367 transitions, 850 flow [2023-11-23 22:43:38,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 367 transitions, 846 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:43:38,497 INFO L231 Difference]: Finished difference. Result has 367 places, 367 transitions, 754 flow [2023-11-23 22:43:38,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=754, PETRI_PLACES=367, PETRI_TRANSITIONS=367} [2023-11-23 22:43:38,501 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -57 predicate places. [2023-11-23 22:43:38,502 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 367 transitions, 754 flow [2023-11-23 22:43:38,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 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) [2023-11-23 22:43:38,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:38,512 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:38,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:43:38,513 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-23 22:43:38,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:38,514 INFO L85 PathProgramCache]: Analyzing trace with hash -839739627, now seen corresponding path program 1 times [2023-11-23 22:43:38,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:38,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834057812] [2023-11-23 22:43:38,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:38,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:38,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:38,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:38,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834057812] [2023-11-23 22:43:38,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834057812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:38,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:38,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:38,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124923154] [2023-11-23 22:43:38,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:38,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:38,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:38,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:38,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:38,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 485 [2023-11-23 22:43:38,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 367 transitions, 754 flow. Second operand has 3 states, 3 states have (on average 381.3333333333333) internal successors, (1144), 3 states have internal predecessors, (1144), 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) [2023-11-23 22:43:38,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:38,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 485 [2023-11-23 22:43:38,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:44,101 INFO L124 PetriNetUnfolderBase]: 11752/20497 cut-off events. [2023-11-23 22:43:44,102 INFO L125 PetriNetUnfolderBase]: For 1130/1618 co-relation queries the response was YES. [2023-11-23 22:43:44,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37797 conditions, 20497 events. 11752/20497 cut-off events. For 1130/1618 co-relation queries the response was YES. Maximal size of possible extension queue 745. Compared 159206 event pairs, 10673 based on Foata normal form. 0/18937 useless extension candidates. Maximal degree in co-relation 37752. Up to 16163 conditions per place. [2023-11-23 22:43:44,606 INFO L140 encePairwiseOnDemand]: 482/485 looper letters, 44 selfloop transitions, 2 changer transitions 0/366 dead transitions. [2023-11-23 22:43:44,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 366 transitions, 844 flow [2023-11-23 22:43:44,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:44,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:44,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1187 transitions. [2023-11-23 22:43:44,613 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.815807560137457 [2023-11-23 22:43:44,613 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1187 transitions. [2023-11-23 22:43:44,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1187 transitions. [2023-11-23 22:43:44,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:44,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1187 transitions. [2023-11-23 22:43:44,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 395.6666666666667) internal successors, (1187), 3 states have internal predecessors, (1187), 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) [2023-11-23 22:43:44,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 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) [2023-11-23 22:43:44,629 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 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) [2023-11-23 22:43:44,629 INFO L175 Difference]: Start difference. First operand has 367 places, 367 transitions, 754 flow. Second operand 3 states and 1187 transitions. [2023-11-23 22:43:44,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 366 transitions, 844 flow [2023-11-23 22:43:44,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 366 transitions, 840 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:43:44,643 INFO L231 Difference]: Finished difference. Result has 366 places, 366 transitions, 752 flow [2023-11-23 22:43:44,644 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=752, PETRI_PLACES=366, PETRI_TRANSITIONS=366} [2023-11-23 22:43:44,646 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -58 predicate places. [2023-11-23 22:43:44,647 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 366 transitions, 752 flow [2023-11-23 22:43:44,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 381.3333333333333) internal successors, (1144), 3 states have internal predecessors, (1144), 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) [2023-11-23 22:43:44,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:44,648 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:44,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:43:44,649 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-23 22:43:44,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:44,650 INFO L85 PathProgramCache]: Analyzing trace with hash -2063185978, now seen corresponding path program 1 times [2023-11-23 22:43:44,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:44,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340338478] [2023-11-23 22:43:44,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:44,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:44,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:44,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:44,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340338478] [2023-11-23 22:43:44,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340338478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:44,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:44,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:44,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786757371] [2023-11-23 22:43:44,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:44,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:44,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:44,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:44,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:44,803 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 485 [2023-11-23 22:43:44,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 366 transitions, 752 flow. Second operand has 3 states, 3 states have (on average 381.3333333333333) internal successors, (1144), 3 states have internal predecessors, (1144), 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) [2023-11-23 22:43:44,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:44,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 485 [2023-11-23 22:43:44,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:49,820 INFO L124 PetriNetUnfolderBase]: 11752/20496 cut-off events. [2023-11-23 22:43:49,821 INFO L125 PetriNetUnfolderBase]: For 1130/1618 co-relation queries the response was YES. [2023-11-23 22:43:49,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37796 conditions, 20496 events. 11752/20496 cut-off events. For 1130/1618 co-relation queries the response was YES. Maximal size of possible extension queue 745. Compared 159172 event pairs, 10673 based on Foata normal form. 0/18937 useless extension candidates. Maximal degree in co-relation 37744. Up to 16163 conditions per place. [2023-11-23 22:43:50,148 INFO L140 encePairwiseOnDemand]: 482/485 looper letters, 44 selfloop transitions, 2 changer transitions 0/365 dead transitions. [2023-11-23 22:43:50,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 365 transitions, 842 flow [2023-11-23 22:43:50,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:50,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:50,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1187 transitions. [2023-11-23 22:43:50,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.815807560137457 [2023-11-23 22:43:50,155 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1187 transitions. [2023-11-23 22:43:50,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1187 transitions. [2023-11-23 22:43:50,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:50,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1187 transitions. [2023-11-23 22:43:50,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 395.6666666666667) internal successors, (1187), 3 states have internal predecessors, (1187), 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) [2023-11-23 22:43:50,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 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) [2023-11-23 22:43:50,172 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 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) [2023-11-23 22:43:50,173 INFO L175 Difference]: Start difference. First operand has 366 places, 366 transitions, 752 flow. Second operand 3 states and 1187 transitions. [2023-11-23 22:43:50,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 365 transitions, 842 flow [2023-11-23 22:43:50,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 365 transitions, 838 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:43:50,186 INFO L231 Difference]: Finished difference. Result has 365 places, 365 transitions, 750 flow [2023-11-23 22:43:50,187 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=750, PETRI_PLACES=365, PETRI_TRANSITIONS=365} [2023-11-23 22:43:50,188 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -59 predicate places. [2023-11-23 22:43:50,188 INFO L495 AbstractCegarLoop]: Abstraction has has 365 places, 365 transitions, 750 flow [2023-11-23 22:43:50,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 381.3333333333333) internal successors, (1144), 3 states have internal predecessors, (1144), 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) [2023-11-23 22:43:50,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:50,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:50,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:43:50,191 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-23 22:43:50,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:50,192 INFO L85 PathProgramCache]: Analyzing trace with hash -656767274, now seen corresponding path program 1 times [2023-11-23 22:43:50,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:50,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303763319] [2023-11-23 22:43:50,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:50,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:50,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:50,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:50,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303763319] [2023-11-23 22:43:50,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303763319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:50,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:50,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:50,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145001771] [2023-11-23 22:43:50,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:50,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:50,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:50,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:50,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:50,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 485 [2023-11-23 22:43:50,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 365 transitions, 750 flow. Second operand has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 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) [2023-11-23 22:43:50,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:50,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 485 [2023-11-23 22:43:50,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:55,117 INFO L124 PetriNetUnfolderBase]: 11629/20204 cut-off events. [2023-11-23 22:43:55,117 INFO L125 PetriNetUnfolderBase]: For 1122/1605 co-relation queries the response was YES. [2023-11-23 22:43:55,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37308 conditions, 20204 events. 11629/20204 cut-off events. For 1122/1605 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 156365 event pairs, 10560 based on Foata normal form. 0/18670 useless extension candidates. Maximal degree in co-relation 37249. Up to 15976 conditions per place. [2023-11-23 22:43:55,365 INFO L140 encePairwiseOnDemand]: 482/485 looper letters, 43 selfloop transitions, 2 changer transitions 0/364 dead transitions. [2023-11-23 22:43:55,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 364 transitions, 838 flow [2023-11-23 22:43:55,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:55,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:55,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1189 transitions. [2023-11-23 22:43:55,369 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8171821305841924 [2023-11-23 22:43:55,369 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1189 transitions. [2023-11-23 22:43:55,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1189 transitions. [2023-11-23 22:43:55,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:55,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1189 transitions. [2023-11-23 22:43:55,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.3333333333333) internal successors, (1189), 3 states have internal predecessors, (1189), 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) [2023-11-23 22:43:55,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 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) [2023-11-23 22:43:55,380 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 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) [2023-11-23 22:43:55,381 INFO L175 Difference]: Start difference. First operand has 365 places, 365 transitions, 750 flow. Second operand 3 states and 1189 transitions. [2023-11-23 22:43:55,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 364 transitions, 838 flow [2023-11-23 22:43:55,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 364 places, 364 transitions, 834 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:43:55,389 INFO L231 Difference]: Finished difference. Result has 364 places, 364 transitions, 748 flow [2023-11-23 22:43:55,390 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=748, PETRI_PLACES=364, PETRI_TRANSITIONS=364} [2023-11-23 22:43:55,391 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -60 predicate places. [2023-11-23 22:43:55,391 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 364 transitions, 748 flow [2023-11-23 22:43:55,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 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) [2023-11-23 22:43:55,392 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:55,392 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:55,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:43:55,393 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-23 22:43:55,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:55,393 INFO L85 PathProgramCache]: Analyzing trace with hash -872235529, now seen corresponding path program 1 times [2023-11-23 22:43:55,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:55,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550744627] [2023-11-23 22:43:55,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:55,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:55,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:55,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:55,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550744627] [2023-11-23 22:43:55,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550744627] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:55,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:55,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:55,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019537237] [2023-11-23 22:43:55,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:55,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:55,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:55,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:55,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:55,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 485 [2023-11-23 22:43:55,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 364 transitions, 748 flow. Second operand has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 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) [2023-11-23 22:43:55,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:55,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 485 [2023-11-23 22:43:55,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:59,935 INFO L124 PetriNetUnfolderBase]: 11629/20203 cut-off events. [2023-11-23 22:43:59,936 INFO L125 PetriNetUnfolderBase]: For 1122/1605 co-relation queries the response was YES. [2023-11-23 22:44:00,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37307 conditions, 20203 events. 11629/20203 cut-off events. For 1122/1605 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 156588 event pairs, 10560 based on Foata normal form. 0/18670 useless extension candidates. Maximal degree in co-relation 37240. Up to 15976 conditions per place. [2023-11-23 22:44:00,201 INFO L140 encePairwiseOnDemand]: 482/485 looper letters, 43 selfloop transitions, 2 changer transitions 0/363 dead transitions. [2023-11-23 22:44:00,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 363 transitions, 836 flow [2023-11-23 22:44:00,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:44:00,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:44:00,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1189 transitions. [2023-11-23 22:44:00,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8171821305841924 [2023-11-23 22:44:00,206 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1189 transitions. [2023-11-23 22:44:00,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1189 transitions. [2023-11-23 22:44:00,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:44:00,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1189 transitions. [2023-11-23 22:44:00,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.3333333333333) internal successors, (1189), 3 states have internal predecessors, (1189), 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) [2023-11-23 22:44:00,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 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) [2023-11-23 22:44:00,218 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 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) [2023-11-23 22:44:00,218 INFO L175 Difference]: Start difference. First operand has 364 places, 364 transitions, 748 flow. Second operand 3 states and 1189 transitions. [2023-11-23 22:44:00,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 363 transitions, 836 flow [2023-11-23 22:44:00,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 363 transitions, 832 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:44:00,228 INFO L231 Difference]: Finished difference. Result has 363 places, 363 transitions, 746 flow [2023-11-23 22:44:00,229 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=742, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=746, PETRI_PLACES=363, PETRI_TRANSITIONS=363} [2023-11-23 22:44:00,229 INFO L281 CegarLoopForPetriNet]: 424 programPoint places, -61 predicate places. [2023-11-23 22:44:00,230 INFO L495 AbstractCegarLoop]: Abstraction has has 363 places, 363 transitions, 746 flow [2023-11-23 22:44:00,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 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) [2023-11-23 22:44:00,231 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:44:00,231 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:44:00,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:44:00,232 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-23 22:44:00,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:44:00,232 INFO L85 PathProgramCache]: Analyzing trace with hash -494994177, now seen corresponding path program 1 times [2023-11-23 22:44:00,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:44:00,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97699928] [2023-11-23 22:44:00,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:44:00,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:44:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:44:00,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:44:00,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:44:00,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97699928] [2023-11-23 22:44:00,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97699928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:44:00,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:44:00,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:44:00,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976198471] [2023-11-23 22:44:00,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:44:00,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:44:00,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:44:00,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:44:00,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:44:00,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 485 [2023-11-23 22:44:00,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 363 transitions, 746 flow. Second operand has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 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) [2023-11-23 22:44:00,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:44:00,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 485 [2023-11-23 22:44:00,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:44:04,991 INFO L124 PetriNetUnfolderBase]: 11750/20437 cut-off events. [2023-11-23 22:44:04,992 INFO L125 PetriNetUnfolderBase]: For 1131/1619 co-relation queries the response was YES.