./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-index-race-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6b00e-d6f2-4e0c-b052-f105d757886e/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6b00e-d6f2-4e0c-b052-f105d757886e/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_c4a6b00e-d6f2-4e0c-b052-f105d757886e/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6b00e-d6f2-4e0c-b052-f105d757886e/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-index-race-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6b00e-d6f2-4e0c-b052-f105d757886e/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_c4a6b00e-d6f2-4e0c-b052-f105d757886e/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 b606ed8b0061f7540a480987fb5d0368be6ab145ef928bee0cc134c3bece9590 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:27:36,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:27:36,654 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6b00e-d6f2-4e0c-b052-f105d757886e/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:27:36,660 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:27:36,660 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:27:36,689 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:27:36,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:27:36,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:27:36,692 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:27:36,693 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:27:36,694 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:27:36,695 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:27:36,695 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:27:36,696 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:27:36,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:27:36,698 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:27:36,699 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:27:36,700 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:27:36,700 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:27:36,701 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:27:36,702 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:27:36,703 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:27:36,704 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:27:36,704 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:27:36,705 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:27:36,705 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:27:36,706 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:27:36,707 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:27:36,708 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:27:36,708 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:27:36,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:27:36,709 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:27:36,710 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:27:36,711 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:27:36,711 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:27:36,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:27:36,712 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:27:36,713 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:27:36,713 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:27:36,714 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:27:36,715 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:27:36,715 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_c4a6b00e-d6f2-4e0c-b052-f105d757886e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6b00e-d6f2-4e0c-b052-f105d757886e/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b606ed8b0061f7540a480987fb5d0368be6ab145ef928bee0cc134c3bece9590 [2023-11-21 22:27:36,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:27:37,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:27:37,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:27:37,036 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:27:37,037 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:27:37,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6b00e-d6f2-4e0c-b052-f105d757886e/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-index-race-2.i [2023-11-21 22:27:40,376 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:27:40,767 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:27:40,768 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6b00e-d6f2-4e0c-b052-f105d757886e/sv-benchmarks/c/pthread-race-challenges/per-thread-array-index-race-2.i [2023-11-21 22:27:40,797 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6b00e-d6f2-4e0c-b052-f105d757886e/bin/uautomizer-verify-bycVGegfSx/data/7410dfcbe/cd6000e4696242d5b0cce586e6e4d325/FLAG7ea5ed62f [2023-11-21 22:27:40,818 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6b00e-d6f2-4e0c-b052-f105d757886e/bin/uautomizer-verify-bycVGegfSx/data/7410dfcbe/cd6000e4696242d5b0cce586e6e4d325 [2023-11-21 22:27:40,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:27:40,828 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:27:40,832 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:27:40,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:27:40,839 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:27:40,840 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:27:40" (1/1) ... [2023-11-21 22:27:40,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cfc054f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:40, skipping insertion in model container [2023-11-21 22:27:40,841 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:27:40" (1/1) ... [2023-11-21 22:27:40,932 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:27:41,194 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:27:41,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:27:41,555 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:27:41,571 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:27:41,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:27:41,672 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:27:41,681 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:27:41,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:41 WrapperNode [2023-11-21 22:27:41,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:27:41,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:27:41,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:27:41,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:27:41,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:41" (1/1) ... [2023-11-21 22:27:41,726 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:41" (1/1) ... [2023-11-21 22:27:41,769 INFO L138 Inliner]: procedures = 266, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2023-11-21 22:27:41,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:27:41,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:27:41,771 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:27:41,771 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:27:41,783 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:41" (1/1) ... [2023-11-21 22:27:41,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:41" (1/1) ... [2023-11-21 22:27:41,789 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:41" (1/1) ... [2023-11-21 22:27:41,789 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:41" (1/1) ... [2023-11-21 22:27:41,803 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:41" (1/1) ... [2023-11-21 22:27:41,807 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:41" (1/1) ... [2023-11-21 22:27:41,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:41" (1/1) ... [2023-11-21 22:27:41,812 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:41" (1/1) ... [2023-11-21 22:27:41,816 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:27:41,818 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:27:41,818 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:27:41,818 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:27:41,819 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:41" (1/1) ... [2023-11-21 22:27:41,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:27:41,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6b00e-d6f2-4e0c-b052-f105d757886e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:27:41,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6b00e-d6f2-4e0c-b052-f105d757886e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:27:41,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6b00e-d6f2-4e0c-b052-f105d757886e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:27:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:27:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:27:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:27:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:27:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:27:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:27:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:27:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-21 22:27:41,921 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-21 22:27:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:27:41,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:27:41,923 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 22:27:42,072 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:27:42,074 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:27:42,414 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:27:42,430 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:27:42,434 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:27:42,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:27:42 BoogieIcfgContainer [2023-11-21 22:27:42,437 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:27:42,440 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:27:42,440 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:27:42,445 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:27:42,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:27:40" (1/3) ... [2023-11-21 22:27:42,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf40c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:27:42, skipping insertion in model container [2023-11-21 22:27:42,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:41" (2/3) ... [2023-11-21 22:27:42,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf40c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:27:42, skipping insertion in model container [2023-11-21 22:27:42,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:27:42" (3/3) ... [2023-11-21 22:27:42,454 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-array-index-race-2.i [2023-11-21 22:27:42,465 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:27:42,478 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:27:42,478 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-21 22:27:42,479 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:27:42,566 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-21 22:27:42,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 115 transitions, 237 flow [2023-11-21 22:27:42,699 INFO L124 PetriNetUnfolderBase]: 6/167 cut-off events. [2023-11-21 22:27:42,699 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:27:42,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 167 events. 6/167 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 351 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 82. Up to 4 conditions per place. [2023-11-21 22:27:42,706 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 115 transitions, 237 flow [2023-11-21 22:27:42,712 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 115 transitions, 237 flow [2023-11-21 22:27:42,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:27:42,733 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;@657a24d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:27:42,733 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-21 22:27:42,743 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:27:42,743 INFO L124 PetriNetUnfolderBase]: 1/25 cut-off events. [2023-11-21 22:27:42,743 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:27:42,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:42,744 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] [2023-11-21 22:27:42,745 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-21 22:27:42,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:42,751 INFO L85 PathProgramCache]: Analyzing trace with hash 526870455, now seen corresponding path program 1 times [2023-11-21 22:27:42,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:42,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171011210] [2023-11-21 22:27:42,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:42,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:43,042 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 22:27:43,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:43,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171011210] [2023-11-21 22:27:43,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171011210] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:43,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:43,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:27:43,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220336416] [2023-11-21 22:27:43,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:43,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:27:43,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:43,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:27:43,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:27:43,139 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 115 [2023-11-21 22:27:43,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 115 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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 22:27:43,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:43,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 115 [2023-11-21 22:27:43,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:27:43,227 INFO L124 PetriNetUnfolderBase]: 3/197 cut-off events. [2023-11-21 22:27:43,227 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2023-11-21 22:27:43,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 197 events. 3/197 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 447 event pairs, 2 based on Foata normal form. 5/179 useless extension candidates. Maximal degree in co-relation 118. Up to 15 conditions per place. [2023-11-21 22:27:43,231 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 8 selfloop transitions, 2 changer transitions 1/111 dead transitions. [2023-11-21 22:27:43,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 111 transitions, 249 flow [2023-11-21 22:27:43,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:27:43,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:27:43,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2023-11-21 22:27:43,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9188405797101449 [2023-11-21 22:27:43,252 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 317 transitions. [2023-11-21 22:27:43,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 317 transitions. [2023-11-21 22:27:43,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:43,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 317 transitions. [2023-11-21 22:27:43,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 22:27:43,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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 22:27:43,285 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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 22:27:43,288 INFO L175 Difference]: Start difference. First operand has 114 places, 115 transitions, 237 flow. Second operand 3 states and 317 transitions. [2023-11-21 22:27:43,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 111 transitions, 249 flow [2023-11-21 22:27:43,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 111 transitions, 249 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:27:43,305 INFO L231 Difference]: Finished difference. Result has 115 places, 110 transitions, 231 flow [2023-11-21 22:27:43,308 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=231, PETRI_PLACES=115, PETRI_TRANSITIONS=110} [2023-11-21 22:27:43,313 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 1 predicate places. [2023-11-21 22:27:43,313 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 110 transitions, 231 flow [2023-11-21 22:27:43,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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 22:27:43,314 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:43,314 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] [2023-11-21 22:27:43,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:27:43,315 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-21 22:27:43,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:43,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1200329891, now seen corresponding path program 1 times [2023-11-21 22:27:43,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:43,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954636374] [2023-11-21 22:27:43,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:43,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:44,159 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 22:27:44,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:44,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954636374] [2023-11-21 22:27:44,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954636374] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:44,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:44,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:27:44,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136917469] [2023-11-21 22:27:44,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:44,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:27:44,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:44,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:27:44,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:27:44,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 115 [2023-11-21 22:27:44,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 110 transitions, 231 flow. Second operand has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 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 22:27:44,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:44,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 115 [2023-11-21 22:27:44,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:27:44,730 INFO L124 PetriNetUnfolderBase]: 117/599 cut-off events. [2023-11-21 22:27:44,730 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-21 22:27:44,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 914 conditions, 599 events. 117/599 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3322 event pairs, 6 based on Foata normal form. 0/548 useless extension candidates. Maximal degree in co-relation 880. Up to 194 conditions per place. [2023-11-21 22:27:44,738 INFO L140 encePairwiseOnDemand]: 92/115 looper letters, 38 selfloop transitions, 29 changer transitions 0/149 dead transitions. [2023-11-21 22:27:44,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 149 transitions, 446 flow [2023-11-21 22:27:44,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:27:44,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:27:44,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 574 transitions. [2023-11-21 22:27:44,743 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8318840579710145 [2023-11-21 22:27:44,743 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 574 transitions. [2023-11-21 22:27:44,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 574 transitions. [2023-11-21 22:27:44,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:44,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 574 transitions. [2023-11-21 22:27:44,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.66666666666667) internal successors, (574), 6 states have internal predecessors, (574), 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 22:27:44,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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 22:27:44,752 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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 22:27:44,752 INFO L175 Difference]: Start difference. First operand has 115 places, 110 transitions, 231 flow. Second operand 6 states and 574 transitions. [2023-11-21 22:27:44,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 149 transitions, 446 flow [2023-11-21 22:27:44,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 149 transitions, 442 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:27:44,760 INFO L231 Difference]: Finished difference. Result has 122 places, 139 transitions, 447 flow [2023-11-21 22:27:44,760 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=447, PETRI_PLACES=122, PETRI_TRANSITIONS=139} [2023-11-21 22:27:44,762 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 8 predicate places. [2023-11-21 22:27:44,762 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 139 transitions, 447 flow [2023-11-21 22:27:44,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 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 22:27:44,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:44,763 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] [2023-11-21 22:27:44,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:27:44,764 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-21 22:27:44,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:44,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1167023293, now seen corresponding path program 1 times [2023-11-21 22:27:44,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:44,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662766359] [2023-11-21 22:27:44,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:44,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:44,862 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 22:27:44,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:44,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662766359] [2023-11-21 22:27:44,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662766359] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:44,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:44,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:27:44,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988348453] [2023-11-21 22:27:44,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:44,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:27:44,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:44,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:27:44,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:27:44,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 115 [2023-11-21 22:27:44,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 139 transitions, 447 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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 22:27:44,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:44,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 115 [2023-11-21 22:27:44,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:27:45,038 INFO L124 PetriNetUnfolderBase]: 90/604 cut-off events. [2023-11-21 22:27:45,038 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2023-11-21 22:27:45,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1054 conditions, 604 events. 90/604 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3498 event pairs, 5 based on Foata normal form. 0/569 useless extension candidates. Maximal degree in co-relation 851. Up to 107 conditions per place. [2023-11-21 22:27:45,046 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 7 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2023-11-21 22:27:45,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 139 transitions, 465 flow [2023-11-21 22:27:45,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:27:45,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:27:45,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 320 transitions. [2023-11-21 22:27:45,048 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.927536231884058 [2023-11-21 22:27:45,049 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 320 transitions. [2023-11-21 22:27:45,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 320 transitions. [2023-11-21 22:27:45,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:45,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 320 transitions. [2023-11-21 22:27:45,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 22:27:45,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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 22:27:45,053 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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 22:27:45,053 INFO L175 Difference]: Start difference. First operand has 122 places, 139 transitions, 447 flow. Second operand 3 states and 320 transitions. [2023-11-21 22:27:45,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 139 transitions, 465 flow [2023-11-21 22:27:45,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 139 transitions, 465 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:27:45,065 INFO L231 Difference]: Finished difference. Result has 123 places, 139 transitions, 457 flow [2023-11-21 22:27:45,065 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=457, PETRI_PLACES=123, PETRI_TRANSITIONS=139} [2023-11-21 22:27:45,066 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 9 predicate places. [2023-11-21 22:27:45,067 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 139 transitions, 457 flow [2023-11-21 22:27:45,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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 22:27:45,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:45,068 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] [2023-11-21 22:27:45,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:27:45,068 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-21 22:27:45,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:45,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1170767380, now seen corresponding path program 1 times [2023-11-21 22:27:45,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:45,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093140939] [2023-11-21 22:27:45,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:45,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:45,200 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 22:27:45,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:45,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093140939] [2023-11-21 22:27:45,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093140939] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:45,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:45,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:27:45,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699339642] [2023-11-21 22:27:45,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:45,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:27:45,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:45,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:27:45,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:27:45,287 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 115 [2023-11-21 22:27:45,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 139 transitions, 457 flow. Second operand has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 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 22:27:45,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:45,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 115 [2023-11-21 22:27:45,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:27:45,419 INFO L124 PetriNetUnfolderBase]: 83/555 cut-off events. [2023-11-21 22:27:45,419 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2023-11-21 22:27:45,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1004 conditions, 555 events. 83/555 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3120 event pairs, 4 based on Foata normal form. 1/531 useless extension candidates. Maximal degree in co-relation 881. Up to 99 conditions per place. [2023-11-21 22:27:45,425 INFO L140 encePairwiseOnDemand]: 107/115 looper letters, 11 selfloop transitions, 2 changer transitions 5/144 dead transitions. [2023-11-21 22:27:45,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 144 transitions, 503 flow [2023-11-21 22:27:45,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:27:45,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:27:45,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 613 transitions. [2023-11-21 22:27:45,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8884057971014493 [2023-11-21 22:27:45,429 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 613 transitions. [2023-11-21 22:27:45,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 613 transitions. [2023-11-21 22:27:45,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:45,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 613 transitions. [2023-11-21 22:27:45,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 102.16666666666667) internal successors, (613), 6 states have internal predecessors, (613), 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 22:27:45,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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 22:27:45,436 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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 22:27:45,437 INFO L175 Difference]: Start difference. First operand has 123 places, 139 transitions, 457 flow. Second operand 6 states and 613 transitions. [2023-11-21 22:27:45,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 144 transitions, 503 flow [2023-11-21 22:27:45,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 144 transitions, 503 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:27:45,445 INFO L231 Difference]: Finished difference. Result has 132 places, 139 transitions, 475 flow [2023-11-21 22:27:45,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=475, PETRI_PLACES=132, PETRI_TRANSITIONS=139} [2023-11-21 22:27:45,447 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 18 predicate places. [2023-11-21 22:27:45,447 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 139 transitions, 475 flow [2023-11-21 22:27:45,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 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 22:27:45,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:45,448 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] [2023-11-21 22:27:45,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:27:45,449 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-21 22:27:45,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:45,450 INFO L85 PathProgramCache]: Analyzing trace with hash 395297287, now seen corresponding path program 1 times [2023-11-21 22:27:45,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:45,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186702031] [2023-11-21 22:27:45,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:45,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:46,038 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 22:27:46,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:46,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186702031] [2023-11-21 22:27:46,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186702031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:46,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:46,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:27:46,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269949258] [2023-11-21 22:27:46,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:46,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:27:46,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:46,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:27:46,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:27:46,228 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 115 [2023-11-21 22:27:46,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 139 transitions, 475 flow. Second operand has 6 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 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 22:27:46,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:46,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 115 [2023-11-21 22:27:46,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:27:46,751 INFO L124 PetriNetUnfolderBase]: 338/1236 cut-off events. [2023-11-21 22:27:46,751 INFO L125 PetriNetUnfolderBase]: For 435/491 co-relation queries the response was YES. [2023-11-21 22:27:46,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2836 conditions, 1236 events. 338/1236 cut-off events. For 435/491 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 8559 event pairs, 62 based on Foata normal form. 11/1179 useless extension candidates. Maximal degree in co-relation 2758. Up to 598 conditions per place. [2023-11-21 22:27:46,765 INFO L140 encePairwiseOnDemand]: 92/115 looper letters, 51 selfloop transitions, 82 changer transitions 2/220 dead transitions. [2023-11-21 22:27:46,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 220 transitions, 1081 flow [2023-11-21 22:27:46,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:27:46,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:27:46,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 597 transitions. [2023-11-21 22:27:46,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8652173913043478 [2023-11-21 22:27:46,770 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 597 transitions. [2023-11-21 22:27:46,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 597 transitions. [2023-11-21 22:27:46,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:46,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 597 transitions. [2023-11-21 22:27:46,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 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 22:27:46,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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 22:27:46,777 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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 22:27:46,777 INFO L175 Difference]: Start difference. First operand has 132 places, 139 transitions, 475 flow. Second operand 6 states and 597 transitions. [2023-11-21 22:27:46,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 220 transitions, 1081 flow [2023-11-21 22:27:46,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 220 transitions, 1067 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-11-21 22:27:46,792 INFO L231 Difference]: Finished difference. Result has 134 places, 218 transitions, 1181 flow [2023-11-21 22:27:46,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1181, PETRI_PLACES=134, PETRI_TRANSITIONS=218} [2023-11-21 22:27:46,793 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 20 predicate places. [2023-11-21 22:27:46,794 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 218 transitions, 1181 flow [2023-11-21 22:27:46,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 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 22:27:46,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:46,795 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:27:46,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:27:46,795 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-21 22:27:46,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:46,796 INFO L85 PathProgramCache]: Analyzing trace with hash -554430641, now seen corresponding path program 1 times [2023-11-21 22:27:46,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:46,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591630438] [2023-11-21 22:27:46,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:46,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:46,851 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:27:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:46,908 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:27:46,908 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:27:46,909 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2023-11-21 22:27:46,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-11-21 22:27:46,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2023-11-21 22:27:46,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-11-21 22:27:46,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-11-21 22:27:46,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-11-21 22:27:46,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-11-21 22:27:46,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-11-21 22:27:46,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-11-21 22:27:46,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-11-21 22:27:46,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-11-21 22:27:46,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:27:46,915 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-21 22:27:46,918 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:27:46,918 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-21 22:27:46,956 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-21 22:27:46,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 136 transitions, 288 flow [2023-11-21 22:27:47,020 INFO L124 PetriNetUnfolderBase]: 11/295 cut-off events. [2023-11-21 22:27:47,020 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-21 22:27:47,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 295 events. 11/295 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 748 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 169. Up to 8 conditions per place. [2023-11-21 22:27:47,022 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 136 transitions, 288 flow [2023-11-21 22:27:47,025 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 136 transitions, 288 flow [2023-11-21 22:27:47,027 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:27:47,028 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;@657a24d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:27:47,029 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-21 22:27:47,032 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:27:47,032 INFO L124 PetriNetUnfolderBase]: 1/25 cut-off events. [2023-11-21 22:27:47,033 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:27:47,033 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:47,033 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] [2023-11-21 22:27:47,033 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:27:47,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:47,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1704440759, now seen corresponding path program 1 times [2023-11-21 22:27:47,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:47,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231405897] [2023-11-21 22:27:47,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:47,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:47,066 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 22:27:47,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:47,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231405897] [2023-11-21 22:27:47,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231405897] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:47,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:47,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:27:47,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359946683] [2023-11-21 22:27:47,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:47,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:27:47,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:47,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:27:47,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:27:47,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 136 [2023-11-21 22:27:47,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 136 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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 22:27:47,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:47,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 136 [2023-11-21 22:27:47,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:27:47,213 INFO L124 PetriNetUnfolderBase]: 19/531 cut-off events. [2023-11-21 22:27:47,213 INFO L125 PetriNetUnfolderBase]: For 26/35 co-relation queries the response was YES. [2023-11-21 22:27:47,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 531 events. 19/531 cut-off events. For 26/35 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2262 event pairs, 16 based on Foata normal form. 9/471 useless extension candidates. Maximal degree in co-relation 340. Up to 50 conditions per place. [2023-11-21 22:27:47,219 INFO L140 encePairwiseOnDemand]: 130/136 looper letters, 11 selfloop transitions, 2 changer transitions 1/132 dead transitions. [2023-11-21 22:27:47,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 132 transitions, 306 flow [2023-11-21 22:27:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:27:47,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:27:47,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 374 transitions. [2023-11-21 22:27:47,222 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2023-11-21 22:27:47,222 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 374 transitions. [2023-11-21 22:27:47,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 374 transitions. [2023-11-21 22:27:47,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:47,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 374 transitions. [2023-11-21 22:27:47,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 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 22:27:47,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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 22:27:47,227 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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 22:27:47,227 INFO L175 Difference]: Start difference. First operand has 136 places, 136 transitions, 288 flow. Second operand 3 states and 374 transitions. [2023-11-21 22:27:47,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 132 transitions, 306 flow [2023-11-21 22:27:47,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 132 transitions, 306 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:27:47,232 INFO L231 Difference]: Finished difference. Result has 137 places, 131 transitions, 282 flow [2023-11-21 22:27:47,232 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=137, PETRI_TRANSITIONS=131} [2023-11-21 22:27:47,234 INFO L281 CegarLoopForPetriNet]: 136 programPoint places, 1 predicate places. [2023-11-21 22:27:47,257 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 131 transitions, 282 flow [2023-11-21 22:27:47,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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 22:27:47,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:47,258 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] [2023-11-21 22:27:47,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:27:47,259 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:27:47,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:47,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1599699293, now seen corresponding path program 1 times [2023-11-21 22:27:47,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:47,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187296691] [2023-11-21 22:27:47,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:47,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:47,655 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 22:27:47,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:47,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187296691] [2023-11-21 22:27:47,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187296691] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:47,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:47,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:27:47,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474251290] [2023-11-21 22:27:47,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:47,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:27:47,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:47,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:27:47,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:27:47,890 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 136 [2023-11-21 22:27:47,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 131 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 100.16666666666667) internal successors, (601), 6 states have internal predecessors, (601), 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 22:27:47,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:47,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 136 [2023-11-21 22:27:47,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:27:48,894 INFO L124 PetriNetUnfolderBase]: 1710/5044 cut-off events. [2023-11-21 22:27:48,894 INFO L125 PetriNetUnfolderBase]: For 125/125 co-relation queries the response was YES. [2023-11-21 22:27:48,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8111 conditions, 5044 events. 1710/5044 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 42248 event pairs, 258 based on Foata normal form. 0/4650 useless extension candidates. Maximal degree in co-relation 8076. Up to 2239 conditions per place. [2023-11-21 22:27:48,940 INFO L140 encePairwiseOnDemand]: 109/136 looper letters, 46 selfloop transitions, 48 changer transitions 0/191 dead transitions. [2023-11-21 22:27:48,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 191 transitions, 601 flow [2023-11-21 22:27:48,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:27:48,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:27:48,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 691 transitions. [2023-11-21 22:27:48,944 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8468137254901961 [2023-11-21 22:27:48,944 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 691 transitions. [2023-11-21 22:27:48,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 691 transitions. [2023-11-21 22:27:48,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:48,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 691 transitions. [2023-11-21 22:27:48,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 states have internal predecessors, (691), 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 22:27:48,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 states have internal predecessors, (952), 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 22:27:48,952 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 states have internal predecessors, (952), 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 22:27:48,952 INFO L175 Difference]: Start difference. First operand has 137 places, 131 transitions, 282 flow. Second operand 6 states and 691 transitions. [2023-11-21 22:27:48,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 191 transitions, 601 flow [2023-11-21 22:27:48,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 191 transitions, 597 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:27:48,958 INFO L231 Difference]: Finished difference. Result has 144 places, 179 transitions, 620 flow [2023-11-21 22:27:48,958 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=620, PETRI_PLACES=144, PETRI_TRANSITIONS=179} [2023-11-21 22:27:48,960 INFO L281 CegarLoopForPetriNet]: 136 programPoint places, 8 predicate places. [2023-11-21 22:27:48,960 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 179 transitions, 620 flow [2023-11-21 22:27:48,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.16666666666667) internal successors, (601), 6 states have internal predecessors, (601), 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 22:27:48,961 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:48,961 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] [2023-11-21 22:27:48,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:27:48,962 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:27:48,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:48,962 INFO L85 PathProgramCache]: Analyzing trace with hash 2013790288, now seen corresponding path program 1 times [2023-11-21 22:27:48,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:48,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762606991] [2023-11-21 22:27:48,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:48,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:49,025 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 22:27:49,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:49,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762606991] [2023-11-21 22:27:49,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762606991] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:49,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:49,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:27:49,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743193211] [2023-11-21 22:27:49,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:49,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:27:49,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:49,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:27:49,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:27:49,043 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 136 [2023-11-21 22:27:49,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 179 transitions, 620 flow. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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 22:27:49,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:49,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 136 [2023-11-21 22:27:49,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:27:50,087 INFO L124 PetriNetUnfolderBase]: 1832/6420 cut-off events. [2023-11-21 22:27:50,088 INFO L125 PetriNetUnfolderBase]: For 1160/1166 co-relation queries the response was YES. [2023-11-21 22:27:50,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11944 conditions, 6420 events. 1832/6420 cut-off events. For 1160/1166 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 61986 event pairs, 262 based on Foata normal form. 0/6006 useless extension candidates. Maximal degree in co-relation 5096. Up to 1953 conditions per place. [2023-11-21 22:27:50,167 INFO L140 encePairwiseOnDemand]: 130/136 looper letters, 12 selfloop transitions, 3 changer transitions 0/180 dead transitions. [2023-11-21 22:27:50,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 180 transitions, 657 flow [2023-11-21 22:27:50,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:27:50,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:27:50,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2023-11-21 22:27:50,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9191176470588235 [2023-11-21 22:27:50,170 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 375 transitions. [2023-11-21 22:27:50,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 375 transitions. [2023-11-21 22:27:50,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:50,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 375 transitions. [2023-11-21 22:27:50,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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 22:27:50,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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 22:27:50,174 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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 22:27:50,174 INFO L175 Difference]: Start difference. First operand has 144 places, 179 transitions, 620 flow. Second operand 3 states and 375 transitions. [2023-11-21 22:27:50,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 180 transitions, 657 flow [2023-11-21 22:27:50,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 180 transitions, 657 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:27:50,200 INFO L231 Difference]: Finished difference. Result has 144 places, 179 transitions, 635 flow [2023-11-21 22:27:50,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=635, PETRI_PLACES=144, PETRI_TRANSITIONS=179} [2023-11-21 22:27:50,204 INFO L281 CegarLoopForPetriNet]: 136 programPoint places, 8 predicate places. [2023-11-21 22:27:50,204 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 179 transitions, 635 flow [2023-11-21 22:27:50,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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 22:27:50,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:50,205 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] [2023-11-21 22:27:50,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:27:50,205 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:27:50,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:50,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1106786716, now seen corresponding path program 1 times [2023-11-21 22:27:50,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:50,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187126114] [2023-11-21 22:27:50,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:50,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:50,321 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 22:27:50,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:50,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187126114] [2023-11-21 22:27:50,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187126114] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:50,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:50,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:27:50,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731571945] [2023-11-21 22:27:50,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:50,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:27:50,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:50,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:27:50,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:27:50,484 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 136 [2023-11-21 22:27:50,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 179 transitions, 635 flow. Second operand has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 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 22:27:50,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:50,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 136 [2023-11-21 22:27:50,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:27:51,516 INFO L124 PetriNetUnfolderBase]: 1377/4916 cut-off events. [2023-11-21 22:27:51,516 INFO L125 PetriNetUnfolderBase]: For 948/952 co-relation queries the response was YES. [2023-11-21 22:27:51,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9367 conditions, 4916 events. 1377/4916 cut-off events. For 948/952 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 44811 event pairs, 185 based on Foata normal form. 1/4677 useless extension candidates. Maximal degree in co-relation 8408. Up to 1492 conditions per place. [2023-11-21 22:27:51,579 INFO L140 encePairwiseOnDemand]: 128/136 looper letters, 14 selfloop transitions, 2 changer transitions 5/185 dead transitions. [2023-11-21 22:27:51,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 185 transitions, 689 flow [2023-11-21 22:27:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:27:51,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:27:51,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 730 transitions. [2023-11-21 22:27:51,583 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8946078431372549 [2023-11-21 22:27:51,584 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 730 transitions. [2023-11-21 22:27:51,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 730 transitions. [2023-11-21 22:27:51,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:51,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 730 transitions. [2023-11-21 22:27:51,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.66666666666667) internal successors, (730), 6 states have internal predecessors, (730), 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 22:27:51,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 states have internal predecessors, (952), 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 22:27:51,591 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 states have internal predecessors, (952), 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 22:27:51,592 INFO L175 Difference]: Start difference. First operand has 144 places, 179 transitions, 635 flow. Second operand 6 states and 730 transitions. [2023-11-21 22:27:51,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 185 transitions, 689 flow [2023-11-21 22:27:51,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 185 transitions, 689 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:27:51,609 INFO L231 Difference]: Finished difference. Result has 153 places, 180 transitions, 657 flow [2023-11-21 22:27:51,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=635, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=657, PETRI_PLACES=153, PETRI_TRANSITIONS=180} [2023-11-21 22:27:51,611 INFO L281 CegarLoopForPetriNet]: 136 programPoint places, 17 predicate places. [2023-11-21 22:27:51,612 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 180 transitions, 657 flow [2023-11-21 22:27:51,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 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 22:27:51,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:51,613 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] [2023-11-21 22:27:51,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:27:51,613 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:27:51,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:51,615 INFO L85 PathProgramCache]: Analyzing trace with hash 862203996, now seen corresponding path program 1 times [2023-11-21 22:27:51,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:51,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96048197] [2023-11-21 22:27:51,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:51,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,138 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 22:27:52,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:52,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96048197] [2023-11-21 22:27:52,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96048197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:52,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:52,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:27:52,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574886168] [2023-11-21 22:27:52,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:52,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:27:52,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:52,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:27:52,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:27:52,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 136 [2023-11-21 22:27:52,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 180 transitions, 657 flow. Second operand has 6 states, 6 states have (on average 100.33333333333333) internal successors, (602), 6 states have internal predecessors, (602), 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 22:27:52,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:52,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 136 [2023-11-21 22:27:52,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:27:56,109 INFO L124 PetriNetUnfolderBase]: 6004/15823 cut-off events. [2023-11-21 22:27:56,109 INFO L125 PetriNetUnfolderBase]: For 6110/6951 co-relation queries the response was YES. [2023-11-21 22:27:56,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36884 conditions, 15823 events. 6004/15823 cut-off events. For 6110/6951 co-relation queries the response was YES. Maximal size of possible extension queue 627. Compared 159728 event pairs, 1397 based on Foata normal form. 47/14823 useless extension candidates. Maximal degree in co-relation 36805. Up to 7375 conditions per place. [2023-11-21 22:27:56,268 INFO L140 encePairwiseOnDemand]: 109/136 looper letters, 103 selfloop transitions, 136 changer transitions 0/340 dead transitions. [2023-11-21 22:27:56,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 340 transitions, 1847 flow [2023-11-21 22:27:56,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:27:56,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:27:56,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 729 transitions. [2023-11-21 22:27:56,273 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8933823529411765 [2023-11-21 22:27:56,273 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 729 transitions. [2023-11-21 22:27:56,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 729 transitions. [2023-11-21 22:27:56,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:56,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 729 transitions. [2023-11-21 22:27:56,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.5) internal successors, (729), 6 states have internal predecessors, (729), 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 22:27:56,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 states have internal predecessors, (952), 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 22:27:56,282 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 states have internal predecessors, (952), 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 22:27:56,282 INFO L175 Difference]: Start difference. First operand has 153 places, 180 transitions, 657 flow. Second operand 6 states and 729 transitions. [2023-11-21 22:27:56,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 340 transitions, 1847 flow [2023-11-21 22:27:56,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 340 transitions, 1835 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-11-21 22:27:56,331 INFO L231 Difference]: Finished difference. Result has 155 places, 313 transitions, 1783 flow [2023-11-21 22:27:56,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1783, PETRI_PLACES=155, PETRI_TRANSITIONS=313} [2023-11-21 22:27:56,333 INFO L281 CegarLoopForPetriNet]: 136 programPoint places, 19 predicate places. [2023-11-21 22:27:56,334 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 313 transitions, 1783 flow [2023-11-21 22:27:56,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.33333333333333) internal successors, (602), 6 states have internal predecessors, (602), 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 22:27:56,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:56,336 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] [2023-11-21 22:27:56,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:27:56,336 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:27:56,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:56,337 INFO L85 PathProgramCache]: Analyzing trace with hash -28909326, now seen corresponding path program 1 times [2023-11-21 22:27:56,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:56,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425824904] [2023-11-21 22:27:56,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:56,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:56,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:56,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:27:56,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:56,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425824904] [2023-11-21 22:27:56,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425824904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:56,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:56,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:27:56,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115335039] [2023-11-21 22:27:56,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:56,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:27:56,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:56,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:27:56,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:27:57,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 136 [2023-11-21 22:27:57,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 313 transitions, 1783 flow. Second operand has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:57,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:57,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 136 [2023-11-21 22:27:57,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:28:00,384 INFO L124 PetriNetUnfolderBase]: 6104/17097 cut-off events. [2023-11-21 22:28:00,384 INFO L125 PetriNetUnfolderBase]: For 17166/17729 co-relation queries the response was YES. [2023-11-21 22:28:00,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48368 conditions, 17097 events. 6104/17097 cut-off events. For 17166/17729 co-relation queries the response was YES. Maximal size of possible extension queue 707. Compared 182211 event pairs, 1012 based on Foata normal form. 28/16167 useless extension candidates. Maximal degree in co-relation 46505. Up to 6496 conditions per place. [2023-11-21 22:28:00,565 INFO L140 encePairwiseOnDemand]: 121/136 looper letters, 110 selfloop transitions, 119 changer transitions 0/429 dead transitions. [2023-11-21 22:28:00,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 429 transitions, 3109 flow [2023-11-21 22:28:00,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:28:00,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:28:00,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 713 transitions. [2023-11-21 22:28:00,570 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8737745098039216 [2023-11-21 22:28:00,571 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 713 transitions. [2023-11-21 22:28:00,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 713 transitions. [2023-11-21 22:28:00,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:28:00,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 713 transitions. [2023-11-21 22:28:00,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 118.83333333333333) internal successors, (713), 6 states have internal predecessors, (713), 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 22:28:00,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 states have internal predecessors, (952), 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 22:28:00,578 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 states have internal predecessors, (952), 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 22:28:00,578 INFO L175 Difference]: Start difference. First operand has 155 places, 313 transitions, 1783 flow. Second operand 6 states and 713 transitions. [2023-11-21 22:28:00,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 429 transitions, 3109 flow [2023-11-21 22:28:00,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 429 transitions, 3055 flow, removed 27 selfloop flow, removed 0 redundant places. [2023-11-21 22:28:00,762 INFO L231 Difference]: Finished difference. Result has 165 places, 427 transitions, 3149 flow [2023-11-21 22:28:00,763 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1729, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3149, PETRI_PLACES=165, PETRI_TRANSITIONS=427} [2023-11-21 22:28:00,764 INFO L281 CegarLoopForPetriNet]: 136 programPoint places, 29 predicate places. [2023-11-21 22:28:00,764 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 427 transitions, 3149 flow [2023-11-21 22:28:00,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:28:00,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:28:00,765 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:00,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 22:28:00,766 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:28:00,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:00,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1657941786, now seen corresponding path program 1 times [2023-11-21 22:28:00,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:00,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176416180] [2023-11-21 22:28:00,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:00,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:01,647 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:28:01,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:01,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176416180] [2023-11-21 22:28:01,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176416180] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:01,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:01,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-21 22:28:01,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851211855] [2023-11-21 22:28:01,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:01,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:28:01,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:01,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:28:01,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:28:02,537 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 136 [2023-11-21 22:28:02,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 427 transitions, 3149 flow. Second operand has 10 states, 10 states have (on average 93.9) internal successors, (939), 10 states have internal predecessors, (939), 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 22:28:02,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:28:02,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 136 [2023-11-21 22:28:02,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:28:08,283 INFO L124 PetriNetUnfolderBase]: 9395/23204 cut-off events. [2023-11-21 22:28:08,283 INFO L125 PetriNetUnfolderBase]: For 34526/37550 co-relation queries the response was YES. [2023-11-21 22:28:08,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80630 conditions, 23204 events. 9395/23204 cut-off events. For 34526/37550 co-relation queries the response was YES. Maximal size of possible extension queue 1034. Compared 243210 event pairs, 1381 based on Foata normal form. 727/22999 useless extension candidates. Maximal degree in co-relation 66614. Up to 7224 conditions per place. [2023-11-21 22:28:08,643 INFO L140 encePairwiseOnDemand]: 116/136 looper letters, 398 selfloop transitions, 236 changer transitions 0/730 dead transitions. [2023-11-21 22:28:08,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 730 transitions, 6671 flow [2023-11-21 22:28:08,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 22:28:08,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-21 22:28:08,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1285 transitions. [2023-11-21 22:28:08,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7873774509803921 [2023-11-21 22:28:08,649 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1285 transitions. [2023-11-21 22:28:08,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1285 transitions. [2023-11-21 22:28:08,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:28:08,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1285 transitions. [2023-11-21 22:28:08,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 107.08333333333333) internal successors, (1285), 12 states have internal predecessors, (1285), 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 22:28:08,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 136.0) internal successors, (1768), 13 states have internal predecessors, (1768), 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 22:28:08,660 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 136.0) internal successors, (1768), 13 states have internal predecessors, (1768), 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 22:28:08,661 INFO L175 Difference]: Start difference. First operand has 165 places, 427 transitions, 3149 flow. Second operand 12 states and 1285 transitions. [2023-11-21 22:28:08,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 730 transitions, 6671 flow [2023-11-21 22:28:09,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 730 transitions, 6623 flow, removed 24 selfloop flow, removed 0 redundant places. [2023-11-21 22:28:09,023 INFO L231 Difference]: Finished difference. Result has 184 places, 564 transitions, 5247 flow [2023-11-21 22:28:09,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=3101, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5247, PETRI_PLACES=184, PETRI_TRANSITIONS=564} [2023-11-21 22:28:09,025 INFO L281 CegarLoopForPetriNet]: 136 programPoint places, 48 predicate places. [2023-11-21 22:28:09,025 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 564 transitions, 5247 flow [2023-11-21 22:28:09,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.9) internal successors, (939), 10 states have internal predecessors, (939), 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 22:28:09,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:28:09,026 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:09,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 22:28:09,027 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:28:09,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:09,027 INFO L85 PathProgramCache]: Analyzing trace with hash 29248621, now seen corresponding path program 1 times [2023-11-21 22:28:09,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:09,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263290603] [2023-11-21 22:28:09,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:09,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:09,629 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 22:28:09,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:09,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263290603] [2023-11-21 22:28:09,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263290603] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:28:09,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665334315] [2023-11-21 22:28:09,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:09,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:28:09,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6b00e-d6f2-4e0c-b052-f105d757886e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:28:09,635 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6b00e-d6f2-4e0c-b052-f105d757886e/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:28:09,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6b00e-d6f2-4e0c-b052-f105d757886e/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:28:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:09,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-21 22:28:09,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:10,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 22:28:10,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-21 22:28:10,242 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:28:10,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-11-21 22:28:10,317 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:28:10,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-11-21 22:28:10,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:28:10,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2023-11-21 22:28:10,424 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 22:28:10,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:28:10,488 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_376 (Array Int Int))) (= (select (select (store |c_#race| c_~datas~0.base v_ArrVal_376) |c_ULTIMATE.start_main_~#tids~0#1.base|) |c_ULTIMATE.start_main_~#tids~0#1.offset|) 0)) (forall ((v_ArrVal_376 (Array Int Int))) (= (select (select (store |c_#race| c_~datas~0.base v_ArrVal_376) |c_ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |c_ULTIMATE.start_main_~#tids~0#1.offset|)) 0)) (forall ((v_ArrVal_376 (Array Int Int))) (= (select (select (store |c_#race| c_~datas~0.base v_ArrVal_376) |c_ULTIMATE.start_main_~#tids~0#1.base|) (+ 3 |c_ULTIMATE.start_main_~#tids~0#1.offset|)) 0)) (forall ((v_ArrVal_376 (Array Int Int))) (= (select (select (store |c_#race| c_~datas~0.base v_ArrVal_376) |c_ULTIMATE.start_main_~#tids~0#1.base|) (+ |c_ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0))) is different from false [2023-11-21 22:28:10,521 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 3 |c_ULTIMATE.start_main_~#tids~0#1.offset|))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base|) .cse1 0)))) (and (forall ((v_ArrVal_376 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_376) |c_ULTIMATE.start_main_~#tids~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_376 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_376) |c_ULTIMATE.start_main_~#tids~0#1.base|) (+ |c_ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0)) (forall ((v_ArrVal_376 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_376) |c_ULTIMATE.start_main_~#tids~0#1.base|) |c_ULTIMATE.start_main_~#tids~0#1.offset|) 0)) (forall ((v_ArrVal_376 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_376) |c_ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |c_ULTIMATE.start_main_~#tids~0#1.offset|)) 0))))) is different from false [2023-11-21 22:28:10,550 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (+ 2 |c_ULTIMATE.start_main_~#tids~0#1.offset|)) (.cse1 (+ 3 |c_ULTIMATE.start_main_~#tids~0#1.offset|))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base|) .cse2 0) .cse1 0)))) (and (forall ((v_ArrVal_376 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_376) |c_ULTIMATE.start_main_~#tids~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_376 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_376) |c_ULTIMATE.start_main_~#tids~0#1.base|) .cse2) 0)) (forall ((v_ArrVal_376 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_376) |c_ULTIMATE.start_main_~#tids~0#1.base|) (+ |c_ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0)) (forall ((v_ArrVal_376 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_376) |c_ULTIMATE.start_main_~#tids~0#1.base|) |c_ULTIMATE.start_main_~#tids~0#1.offset|) 0))))) is different from false [2023-11-21 22:28:13,905 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 2 not checked. [2023-11-21 22:28:13,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665334315] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:28:13,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:28:13,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2023-11-21 22:28:13,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114605613] [2023-11-21 22:28:13,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:28:13,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-21 22:28:13,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:13,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-21 22:28:13,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=235, Unknown=3, NotChecked=102, Total=420 [2023-11-21 22:28:13,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 136 [2023-11-21 22:28:13,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 564 transitions, 5247 flow. Second operand has 21 states, 21 states have (on average 77.28571428571429) internal successors, (1623), 21 states have internal predecessors, (1623), 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 22:28:13,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:28:13,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 136 [2023-11-21 22:28:13,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:28:24,777 INFO L124 PetriNetUnfolderBase]: 18092/38733 cut-off events. [2023-11-21 22:28:24,777 INFO L125 PetriNetUnfolderBase]: For 132010/132306 co-relation queries the response was YES. [2023-11-21 22:28:25,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155681 conditions, 38733 events. 18092/38733 cut-off events. For 132010/132306 co-relation queries the response was YES. Maximal size of possible extension queue 1568. Compared 401837 event pairs, 6496 based on Foata normal form. 817/37214 useless extension candidates. Maximal degree in co-relation 152002. Up to 27719 conditions per place. [2023-11-21 22:28:25,575 INFO L140 encePairwiseOnDemand]: 124/136 looper letters, 470 selfloop transitions, 18 changer transitions 0/578 dead transitions. [2023-11-21 22:28:25,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 578 transitions, 6337 flow [2023-11-21 22:28:25,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 22:28:25,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-21 22:28:25,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 827 transitions. [2023-11-21 22:28:25,581 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6080882352941176 [2023-11-21 22:28:25,581 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 827 transitions. [2023-11-21 22:28:25,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 827 transitions. [2023-11-21 22:28:25,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:28:25,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 827 transitions. [2023-11-21 22:28:25,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 82.7) internal successors, (827), 10 states have internal predecessors, (827), 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 22:28:25,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 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 22:28:25,592 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 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 22:28:25,592 INFO L175 Difference]: Start difference. First operand has 184 places, 564 transitions, 5247 flow. Second operand 10 states and 827 transitions. [2023-11-21 22:28:25,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 578 transitions, 6337 flow [2023-11-21 22:28:27,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 578 transitions, 6285 flow, removed 23 selfloop flow, removed 3 redundant places. [2023-11-21 22:28:27,381 INFO L231 Difference]: Finished difference. Result has 191 places, 565 transitions, 5267 flow [2023-11-21 22:28:27,382 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=5183, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=543, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5267, PETRI_PLACES=191, PETRI_TRANSITIONS=565} [2023-11-21 22:28:27,383 INFO L281 CegarLoopForPetriNet]: 136 programPoint places, 55 predicate places. [2023-11-21 22:28:27,383 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 565 transitions, 5267 flow [2023-11-21 22:28:27,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 77.28571428571429) internal successors, (1623), 21 states have internal predecessors, (1623), 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 22:28:27,384 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:28:27,384 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:27,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6b00e-d6f2-4e0c-b052-f105d757886e/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:28:27,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6b00e-d6f2-4e0c-b052-f105d757886e/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:28:27,596 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:28:27,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:27,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1353583908, now seen corresponding path program 1 times [2023-11-21 22:28:27,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:27,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600511653] [2023-11-21 22:28:27,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:27,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:28,195 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-21 22:28:28,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:28,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600511653] [2023-11-21 22:28:28,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600511653] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:28,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:28,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:28:28,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976111809] [2023-11-21 22:28:28,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:28,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:28:28,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:28,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:28:28,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:28:28,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 136 [2023-11-21 22:28:28,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 565 transitions, 5267 flow. Second operand has 6 states, 6 states have (on average 100.5) internal successors, (603), 6 states have internal predecessors, (603), 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 22:28:28,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:28:28,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 136 [2023-11-21 22:28:28,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand