./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/mix021.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d577c75-fc21-4789-a1a9-bdfd46aa2f30/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d577c75-fc21-4789-a1a9-bdfd46aa2f30/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_7d577c75-fc21-4789-a1a9-bdfd46aa2f30/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d577c75-fc21-4789-a1a9-bdfd46aa2f30/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix021.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d577c75-fc21-4789-a1a9-bdfd46aa2f30/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_7d577c75-fc21-4789-a1a9-bdfd46aa2f30/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 576d0750cd121d18ae295ddde1dd1649436f79f5ff3834655e4b6c15fd1260db --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:23:04,567 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:23:04,665 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d577c75-fc21-4789-a1a9-bdfd46aa2f30/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:23:04,671 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:23:04,672 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:23:04,698 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:23:04,699 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:23:04,700 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:23:04,700 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:23:04,701 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:23:04,702 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:23:04,703 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:23:04,703 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:23:04,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:23:04,705 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:23:04,705 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:23:04,706 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:23:04,706 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:23:04,707 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:23:04,708 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:23:04,708 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:23:04,709 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:23:04,710 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:23:04,710 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:23:04,711 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:23:04,712 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:23:04,712 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:23:04,713 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:23:04,713 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:23:04,714 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:23:04,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:04,715 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:23:04,716 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:23:04,716 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:23:04,717 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:23:04,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:23:04,717 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:23:04,718 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:23:04,718 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:23:04,718 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:23:04,719 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:23:04,719 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_7d577c75-fc21-4789-a1a9-bdfd46aa2f30/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d577c75-fc21-4789-a1a9-bdfd46aa2f30/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 576d0750cd121d18ae295ddde1dd1649436f79f5ff3834655e4b6c15fd1260db [2023-11-21 22:23:04,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:23:05,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:23:05,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:23:05,006 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:23:05,006 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:23:05,007 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d577c75-fc21-4789-a1a9-bdfd46aa2f30/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-wmm/mix021.opt.i [2023-11-21 22:23:08,207 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:23:08,490 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:23:08,490 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d577c75-fc21-4789-a1a9-bdfd46aa2f30/sv-benchmarks/c/pthread-wmm/mix021.opt.i [2023-11-21 22:23:08,516 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d577c75-fc21-4789-a1a9-bdfd46aa2f30/bin/uautomizer-verify-bycVGegfSx/data/b6385e574/3f61ee427b514784a0a400833e35ef98/FLAG336b4e11f [2023-11-21 22:23:08,529 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d577c75-fc21-4789-a1a9-bdfd46aa2f30/bin/uautomizer-verify-bycVGegfSx/data/b6385e574/3f61ee427b514784a0a400833e35ef98 [2023-11-21 22:23:08,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:23:08,533 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:23:08,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:23:08,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:23:08,540 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:23:08,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:23:08" (1/1) ... [2023-11-21 22:23:08,541 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@190b30fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:08, skipping insertion in model container [2023-11-21 22:23:08,542 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:23:08" (1/1) ... [2023-11-21 22:23:08,626 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:23:09,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:23:09,153 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:23:09,300 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:23:09,392 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:23:09,392 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:23:09,400 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:23:09,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:09 WrapperNode [2023-11-21 22:23:09,401 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:23:09,402 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:23:09,403 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:23:09,403 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:23:09,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:09" (1/1) ... [2023-11-21 22:23:09,454 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:09" (1/1) ... [2023-11-21 22:23:09,547 INFO L138 Inliner]: procedures = 177, calls = 70, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 979 [2023-11-21 22:23:09,548 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:23:09,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:23:09,549 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:23:09,549 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:23:09,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:09" (1/1) ... [2023-11-21 22:23:09,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:09" (1/1) ... [2023-11-21 22:23:09,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:09" (1/1) ... [2023-11-21 22:23:09,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:09" (1/1) ... [2023-11-21 22:23:09,625 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:09" (1/1) ... [2023-11-21 22:23:09,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:09" (1/1) ... [2023-11-21 22:23:09,651 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:09" (1/1) ... [2023-11-21 22:23:09,657 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:09" (1/1) ... [2023-11-21 22:23:09,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:23:09,677 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:23:09,678 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:23:09,678 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:23:09,679 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:09" (1/1) ... [2023-11-21 22:23:09,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:09,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d577c75-fc21-4789-a1a9-bdfd46aa2f30/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:09,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d577c75-fc21-4789-a1a9-bdfd46aa2f30/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:23:09,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d577c75-fc21-4789-a1a9-bdfd46aa2f30/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:23:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:23:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:23:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:23:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:23:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:23:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-21 22:23:09,765 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-21 22:23:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-21 22:23:09,765 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-21 22:23:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-21 22:23:09,766 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-21 22:23:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-21 22:23:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-21 22:23:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:23:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:23:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:23:09,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:23:09,771 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 22:23:10,007 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:23:10,010 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:23:11,705 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:23:20,071 WARN L1820 r$LargeBlockEncoding]: Complex 2:6 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2023-11-21 22:23:20,147 WARN L1820 r$LargeBlockEncoding]: Complex 3:55 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2023-11-21 22:23:21,560 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:23:21,561 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:23:21,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:21 BoogieIcfgContainer [2023-11-21 22:23:21,563 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:23:21,566 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:23:21,567 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:23:21,571 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:23:21,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:23:08" (1/3) ... [2023-11-21 22:23:21,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8cc9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:21, skipping insertion in model container [2023-11-21 22:23:21,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:09" (2/3) ... [2023-11-21 22:23:21,575 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8cc9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:21, skipping insertion in model container [2023-11-21 22:23:21,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:21" (3/3) ... [2023-11-21 22:23:21,576 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021.opt.i [2023-11-21 22:23:21,590 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:23:21,601 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:23:21,602 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 292 error locations. [2023-11-21 22:23:21,602 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:23:22,192 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:23:22,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 442 places, 547 transitions, 1110 flow [2023-11-21 22:23:22,688 INFO L124 PetriNetUnfolderBase]: 118/543 cut-off events. [2023-11-21 22:23:22,688 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:23:22,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 556 conditions, 543 events. 118/543 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 2682 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 506. Up to 3 conditions per place. [2023-11-21 22:23:22,721 INFO L82 GeneralOperation]: Start removeDead. Operand has 442 places, 547 transitions, 1110 flow [2023-11-21 22:23:22,793 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 438 places, 543 transitions, 1098 flow [2023-11-21 22:23:22,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:23:22,822 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;@4ceb1c3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:23:22,822 INFO L358 AbstractCegarLoop]: Starting to check reachability of 550 error locations. [2023-11-21 22:23:22,835 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:23:22,835 INFO L124 PetriNetUnfolderBase]: 0/46 cut-off events. [2023-11-21 22:23:22,835 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:23:22,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:23:22,836 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] [2023-11-21 22:23:22,837 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 546 more)] === [2023-11-21 22:23:22,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:22,849 INFO L85 PathProgramCache]: Analyzing trace with hash -2054548617, now seen corresponding path program 1 times [2023-11-21 22:23:22,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:22,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892435506] [2023-11-21 22:23:22,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:22,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:23,217 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 22:23:23,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:23,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892435506] [2023-11-21 22:23:23,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892435506] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:23:23,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:23:23,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:23:23,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147264746] [2023-11-21 22:23:23,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:23:23,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:23:23,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:23,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:23:23,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:23:23,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 547 [2023-11-21 22:23:23,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 543 transitions, 1098 flow. Second operand has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 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 22:23:23,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:23:23,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 547 [2023-11-21 22:23:23,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:23:38,712 INFO L124 PetriNetUnfolderBase]: 5036/16683 cut-off events. [2023-11-21 22:23:38,712 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2023-11-21 22:23:38,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23515 conditions, 16683 events. 5036/16683 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 199021 event pairs, 4524 based on Foata normal form. 1107/16367 useless extension candidates. Maximal degree in co-relation 23463. Up to 6657 conditions per place. [2023-11-21 22:23:38,922 INFO L140 encePairwiseOnDemand]: 141/547 looper letters, 23 selfloop transitions, 0 changer transitions 0/134 dead transitions. [2023-11-21 22:23:38,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 134 transitions, 326 flow [2023-11-21 22:23:38,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:23:38,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-21 22:23:38,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 663 transitions. [2023-11-21 22:23:38,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6060329067641682 [2023-11-21 22:23:38,955 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 663 transitions. [2023-11-21 22:23:38,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 663 transitions. [2023-11-21 22:23:38,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:23:38,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 663 transitions. [2023-11-21 22:23:38,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 331.5) internal successors, (663), 2 states have internal predecessors, (663), 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 22:23:38,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 547.0) internal successors, (1641), 3 states have internal predecessors, (1641), 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 22:23:38,982 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 547.0) internal successors, (1641), 3 states have internal predecessors, (1641), 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 22:23:38,984 INFO L175 Difference]: Start difference. First operand has 438 places, 543 transitions, 1098 flow. Second operand 2 states and 663 transitions. [2023-11-21 22:23:38,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 134 transitions, 326 flow [2023-11-21 22:23:38,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 134 transitions, 322 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:23:38,998 INFO L231 Difference]: Finished difference. Result has 142 places, 134 transitions, 276 flow [2023-11-21 22:23:39,001 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=276, PETRI_PLACES=142, PETRI_TRANSITIONS=134} [2023-11-21 22:23:39,006 INFO L281 CegarLoopForPetriNet]: 438 programPoint places, -296 predicate places. [2023-11-21 22:23:39,006 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 134 transitions, 276 flow [2023-11-21 22:23:39,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 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 22:23:39,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:23:39,008 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] [2023-11-21 22:23:39,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:23:39,009 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 546 more)] === [2023-11-21 22:23:39,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:39,010 INFO L85 PathProgramCache]: Analyzing trace with hash 76742022, now seen corresponding path program 1 times [2023-11-21 22:23:39,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:39,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7609654] [2023-11-21 22:23:39,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:39,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:39,303 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 22:23:39,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:39,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7609654] [2023-11-21 22:23:39,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7609654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:23:39,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:23:39,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:23:39,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9918882] [2023-11-21 22:23:39,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:23:39,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:23:39,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:39,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:23:39,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:23:39,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 547 [2023-11-21 22:23:39,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 134 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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 22:23:39,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:23:39,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 547 [2023-11-21 22:23:39,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:23:57,208 INFO L124 PetriNetUnfolderBase]: 7660/22562 cut-off events. [2023-11-21 22:23:57,208 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:23:57,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32783 conditions, 22562 events. 7660/22562 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 551. Compared 259105 event pairs, 2156 based on Foata normal form. 0/20604 useless extension candidates. Maximal degree in co-relation 32780. Up to 6784 conditions per place. [2023-11-21 22:23:57,355 INFO L140 encePairwiseOnDemand]: 545/547 looper letters, 40 selfloop transitions, 1 changer transitions 0/149 dead transitions. [2023-11-21 22:23:57,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 149 transitions, 388 flow [2023-11-21 22:23:57,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:23:57,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:23:57,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2023-11-21 22:23:57,359 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2340036563071298 [2023-11-21 22:23:57,360 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 384 transitions. [2023-11-21 22:23:57,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 384 transitions. [2023-11-21 22:23:57,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:23:57,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 384 transitions. [2023-11-21 22:23:57,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 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 22:23:57,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 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 22:23:57,372 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 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 22:23:57,373 INFO L175 Difference]: Start difference. First operand has 142 places, 134 transitions, 276 flow. Second operand 3 states and 384 transitions. [2023-11-21 22:23:57,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 149 transitions, 388 flow [2023-11-21 22:23:57,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 149 transitions, 388 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:23:57,384 INFO L231 Difference]: Finished difference. Result has 143 places, 133 transitions, 276 flow [2023-11-21 22:23:57,385 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=143, PETRI_TRANSITIONS=133} [2023-11-21 22:23:57,386 INFO L281 CegarLoopForPetriNet]: 438 programPoint places, -295 predicate places. [2023-11-21 22:23:57,387 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 133 transitions, 276 flow [2023-11-21 22:23:57,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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 22:23:57,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:23:57,389 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, 1, 1, 1, 1] [2023-11-21 22:23:57,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:23:57,390 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 546 more)] === [2023-11-21 22:23:57,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:57,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1285740497, now seen corresponding path program 1 times [2023-11-21 22:23:57,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:57,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019268847] [2023-11-21 22:23:57,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:57,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:57,597 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 22:23:57,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:57,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019268847] [2023-11-21 22:23:57,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019268847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:23:57,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:23:57,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:23:57,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618263808] [2023-11-21 22:23:57,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:23:57,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:23:57,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:57,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:23:57,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:23:57,603 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 547 [2023-11-21 22:23:57,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 133 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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 22:23:57,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:23:57,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 547 [2023-11-21 22:23:57,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand