./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:14:00,709 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:14:00,798 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:14:00,804 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:14:00,805 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:14:00,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:14:00,834 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:14:00,835 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:14:00,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:14:00,837 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:14:00,838 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:14:00,838 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:14:00,839 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:14:00,839 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:14:00,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:14:00,841 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:14:00,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:14:00,842 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:14:00,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:14:00,843 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:14:00,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:14:00,848 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:14:00,849 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:14:00,849 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:14:00,850 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:14:00,850 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:14:00,850 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:14:00,851 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:14:00,852 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:14:00,852 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:14:00,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:14:00,854 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:14:00,854 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:14:00,854 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:14:00,855 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:14:00,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:14:00,855 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:14:00,855 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:14:00,856 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:14:00,856 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:14:00,856 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:14:00,857 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_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 [2023-11-06 22:14:01,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:14:01,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:14:01,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:14:01,249 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:14:01,250 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:14:01,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2023-11-06 22:14:04,362 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:14:04,642 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:14:04,642 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2023-11-06 22:14:04,650 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/data/d778f1d23/c0ab819515164c12887c263f5084cdae/FLAG6e5062e41 [2023-11-06 22:14:04,665 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/data/d778f1d23/c0ab819515164c12887c263f5084cdae [2023-11-06 22:14:04,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:14:04,669 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:14:04,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:14:04,671 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:14:04,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:14:04,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:14:04" (1/1) ... [2023-11-06 22:14:04,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c99073c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:04, skipping insertion in model container [2023-11-06 22:14:04,681 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:14:04" (1/1) ... [2023-11-06 22:14:04,712 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:14:04,955 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:14:04,965 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:14:05,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:14:05,022 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:14:05,022 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:14:05,030 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:14:05,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:05 WrapperNode [2023-11-06 22:14:05,031 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:14:05,032 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:14:05,033 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:14:05,033 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:14:05,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:05" (1/1) ... [2023-11-06 22:14:05,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:05" (1/1) ... [2023-11-06 22:14:05,119 INFO L138 Inliner]: procedures = 26, calls = 58, calls flagged for inlining = 15, calls inlined = 23, statements flattened = 380 [2023-11-06 22:14:05,128 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:14:05,134 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:14:05,134 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:14:05,134 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:14:05,150 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:05" (1/1) ... [2023-11-06 22:14:05,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:05" (1/1) ... [2023-11-06 22:14:05,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:05" (1/1) ... [2023-11-06 22:14:05,161 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:05" (1/1) ... [2023-11-06 22:14:05,209 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:05" (1/1) ... [2023-11-06 22:14:05,216 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:05" (1/1) ... [2023-11-06 22:14:05,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:05" (1/1) ... [2023-11-06 22:14:05,225 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:05" (1/1) ... [2023-11-06 22:14:05,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:14:05,233 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:14:05,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:14:05,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:14:05,246 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:05" (1/1) ... [2023-11-06 22:14:05,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:14:05,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:05,285 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:05,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:14:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:14:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:14:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:14:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:14:05,336 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:14:05,336 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:14:05,336 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:14:05,336 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:14:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 22:14:05,337 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 22:14:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:14:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:14:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:14:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:14:05,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:14:05,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:14:05,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:14:05,342 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:14:05,536 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:14:05,540 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:14:06,599 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:14:06,903 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:14:06,904 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-06 22:14:06,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:14:06 BoogieIcfgContainer [2023-11-06 22:14:06,909 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:14:06,914 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:14:06,914 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:14:06,918 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:14:06,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:14:04" (1/3) ... [2023-11-06 22:14:06,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6986f863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:14:06, skipping insertion in model container [2023-11-06 22:14:06,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:05" (2/3) ... [2023-11-06 22:14:06,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6986f863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:14:06, skipping insertion in model container [2023-11-06 22:14:06,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:14:06" (3/3) ... [2023-11-06 22:14:06,925 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2023-11-06 22:14:06,940 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:14:06,952 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:14:06,953 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2023-11-06 22:14:06,953 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:14:07,135 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 22:14:07,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 520 places, 537 transitions, 1095 flow [2023-11-06 22:14:07,473 INFO L124 PetriNetUnfolderBase]: 27/534 cut-off events. [2023-11-06 22:14:07,473 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:14:07,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 534 events. 27/534 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 636 event pairs, 0 based on Foata normal form. 0/449 useless extension candidates. Maximal degree in co-relation 426. Up to 2 conditions per place. [2023-11-06 22:14:07,484 INFO L82 GeneralOperation]: Start removeDead. Operand has 520 places, 537 transitions, 1095 flow [2023-11-06 22:14:07,500 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 470 places, 484 transitions, 986 flow [2023-11-06 22:14:07,509 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:14:07,525 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 470 places, 484 transitions, 986 flow [2023-11-06 22:14:07,530 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 470 places, 484 transitions, 986 flow [2023-11-06 22:14:07,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 470 places, 484 transitions, 986 flow [2023-11-06 22:14:07,650 INFO L124 PetriNetUnfolderBase]: 24/484 cut-off events. [2023-11-06 22:14:07,650 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:14:07,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 484 events. 24/484 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 630 event pairs, 0 based on Foata normal form. 0/403 useless extension candidates. Maximal degree in co-relation 426. Up to 2 conditions per place. [2023-11-06 22:14:07,668 INFO L119 LiptonReduction]: Number of co-enabled transitions 14004 [2023-11-06 22:14:39,983 INFO L134 LiptonReduction]: Checked pairs total: 105257 [2023-11-06 22:14:39,983 INFO L136 LiptonReduction]: Total number of compositions: 495 [2023-11-06 22:14:40,000 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:14:40,007 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=LoopsAndPotentialCycles, 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;@1b0060cd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:14:40,007 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2023-11-06 22:14:40,009 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:14:40,010 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:14:40,010 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:14:40,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:14:40,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:14:40,011 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 22:14:40,017 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:40,017 INFO L85 PathProgramCache]: Analyzing trace with hash 2034, now seen corresponding path program 1 times [2023-11-06 22:14:40,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:40,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747713927] [2023-11-06 22:14:40,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:40,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:40,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:40,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:40,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747713927] [2023-11-06 22:14:40,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747713927] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:14:40,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:14:40,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:14:40,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870931945] [2023-11-06 22:14:40,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:14:40,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:14:40,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:40,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:14:40,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:14:40,166 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 495 out of 1032 [2023-11-06 22:14:40,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 143 transitions, 304 flow. Second operand has 2 states, 2 states have (on average 495.5) internal successors, (991), 2 states have internal predecessors, (991), 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) [2023-11-06 22:14:40,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:14:40,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 495 of 1032 [2023-11-06 22:14:40,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:14:41,094 INFO L124 PetriNetUnfolderBase]: 1794/4416 cut-off events. [2023-11-06 22:14:41,095 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2023-11-06 22:14:41,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6936 conditions, 4416 events. 1794/4416 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 36706 event pairs, 1035 based on Foata normal form. 628/3966 useless extension candidates. Maximal degree in co-relation 6386. Up to 2378 conditions per place. [2023-11-06 22:14:41,139 INFO L140 encePairwiseOnDemand]: 986/1032 looper letters, 37 selfloop transitions, 0 changer transitions 1/97 dead transitions. [2023-11-06 22:14:41,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 97 transitions, 288 flow [2023-11-06 22:14:41,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:14:41,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:14:41,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1074 transitions. [2023-11-06 22:14:41,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5203488372093024 [2023-11-06 22:14:41,166 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1074 transitions. [2023-11-06 22:14:41,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1074 transitions. [2023-11-06 22:14:41,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:14:41,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1074 transitions. [2023-11-06 22:14:41,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 537.0) internal successors, (1074), 2 states have internal predecessors, (1074), 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) [2023-11-06 22:14:41,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1032.0) internal successors, (3096), 3 states have internal predecessors, (3096), 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) [2023-11-06 22:14:41,200 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1032.0) internal successors, (3096), 3 states have internal predecessors, (3096), 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) [2023-11-06 22:14:41,202 INFO L175 Difference]: Start difference. First operand has 141 places, 143 transitions, 304 flow. Second operand 2 states and 1074 transitions. [2023-11-06 22:14:41,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 97 transitions, 288 flow [2023-11-06 22:14:41,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 97 transitions, 276 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 22:14:41,212 INFO L231 Difference]: Finished difference. Result has 93 places, 96 transitions, 197 flow [2023-11-06 22:14:41,215 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=197, PETRI_PLACES=93, PETRI_TRANSITIONS=96} [2023-11-06 22:14:41,219 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -48 predicate places. [2023-11-06 22:14:41,220 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 96 transitions, 197 flow [2023-11-06 22:14:41,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 495.5) internal successors, (991), 2 states have internal predecessors, (991), 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) [2023-11-06 22:14:41,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:14:41,221 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:14:41,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:14:41,223 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 22:14:41,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:41,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1797622645, now seen corresponding path program 1 times [2023-11-06 22:14:41,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:41,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097395785] [2023-11-06 22:14:41,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:41,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:41,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:41,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:41,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097395785] [2023-11-06 22:14:41,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097395785] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:14:41,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:14:41,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:14:41,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083148163] [2023-11-06 22:14:41,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:14:41,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:14:41,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:41,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:14:41,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:14:41,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 1032 [2023-11-06 22:14:41,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 96 transitions, 197 flow. Second operand has 3 states, 3 states have (on average 475.3333333333333) internal successors, (1426), 3 states have internal predecessors, (1426), 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) [2023-11-06 22:14:41,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:14:41,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 1032 [2023-11-06 22:14:41,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:14:42,385 INFO L124 PetriNetUnfolderBase]: 2419/5655 cut-off events. [2023-11-06 22:14:42,385 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-06 22:14:42,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9073 conditions, 5655 events. 2419/5655 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 46371 event pairs, 1756 based on Foata normal form. 0/4584 useless extension candidates. Maximal degree in co-relation 9070. Up to 3342 conditions per place. [2023-11-06 22:14:42,436 INFO L140 encePairwiseOnDemand]: 1028/1032 looper letters, 39 selfloop transitions, 1 changer transitions 0/93 dead transitions. [2023-11-06 22:14:42,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 93 transitions, 271 flow [2023-11-06 22:14:42,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:14:42,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:14:42,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1462 transitions. [2023-11-06 22:14:42,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222 [2023-11-06 22:14:42,443 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1462 transitions. [2023-11-06 22:14:42,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1462 transitions. [2023-11-06 22:14:42,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:14:42,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1462 transitions. [2023-11-06 22:14:42,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 487.3333333333333) internal successors, (1462), 3 states have internal predecessors, (1462), 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) [2023-11-06 22:14:42,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 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) [2023-11-06 22:14:42,462 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 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) [2023-11-06 22:14:42,463 INFO L175 Difference]: Start difference. First operand has 93 places, 96 transitions, 197 flow. Second operand 3 states and 1462 transitions. [2023-11-06 22:14:42,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 93 transitions, 271 flow [2023-11-06 22:14:42,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 93 transitions, 271 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:14:42,466 INFO L231 Difference]: Finished difference. Result has 91 places, 93 transitions, 193 flow [2023-11-06 22:14:42,467 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=91, PETRI_TRANSITIONS=93} [2023-11-06 22:14:42,468 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -50 predicate places. [2023-11-06 22:14:42,468 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 93 transitions, 193 flow [2023-11-06 22:14:42,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.3333333333333) internal successors, (1426), 3 states have internal predecessors, (1426), 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) [2023-11-06 22:14:42,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:14:42,470 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:14:42,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:14:42,470 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 22:14:42,471 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:42,471 INFO L85 PathProgramCache]: Analyzing trace with hash -938317093, now seen corresponding path program 1 times [2023-11-06 22:14:42,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:42,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585773292] [2023-11-06 22:14:42,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:42,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:42,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:42,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:42,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585773292] [2023-11-06 22:14:42,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585773292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:14:42,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:14:42,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:14:42,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644697968] [2023-11-06 22:14:42,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:14:42,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:14:42,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:42,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:14:42,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:14:42,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 482 out of 1032 [2023-11-06 22:14:42,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 93 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 484.6666666666667) internal successors, (1454), 3 states have internal predecessors, (1454), 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) [2023-11-06 22:14:42,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:14:42,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 482 of 1032 [2023-11-06 22:14:42,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:14:43,381 INFO L124 PetriNetUnfolderBase]: 2113/4728 cut-off events. [2023-11-06 22:14:43,381 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-11-06 22:14:43,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7600 conditions, 4728 events. 2113/4728 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 36874 event pairs, 1252 based on Foata normal form. 0/3611 useless extension candidates. Maximal degree in co-relation 7596. Up to 2795 conditions per place. [2023-11-06 22:14:43,431 INFO L140 encePairwiseOnDemand]: 1029/1032 looper letters, 38 selfloop transitions, 1 changer transitions 0/91 dead transitions. [2023-11-06 22:14:43,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 91 transitions, 267 flow [2023-11-06 22:14:43,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:14:43,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:14:43,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1487 transitions. [2023-11-06 22:14:43,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.480297157622739 [2023-11-06 22:14:43,438 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1487 transitions. [2023-11-06 22:14:43,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1487 transitions. [2023-11-06 22:14:43,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:14:43,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1487 transitions. [2023-11-06 22:14:43,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 495.6666666666667) internal successors, (1487), 3 states have internal predecessors, (1487), 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) [2023-11-06 22:14:43,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 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) [2023-11-06 22:14:43,457 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 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) [2023-11-06 22:14:43,457 INFO L175 Difference]: Start difference. First operand has 91 places, 93 transitions, 193 flow. Second operand 3 states and 1487 transitions. [2023-11-06 22:14:43,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 91 transitions, 267 flow [2023-11-06 22:14:43,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 91 transitions, 266 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:14:43,463 INFO L231 Difference]: Finished difference. Result has 90 places, 91 transitions, 190 flow [2023-11-06 22:14:43,464 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=90, PETRI_TRANSITIONS=91} [2023-11-06 22:14:43,465 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -51 predicate places. [2023-11-06 22:14:43,466 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 91 transitions, 190 flow [2023-11-06 22:14:43,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 484.6666666666667) internal successors, (1454), 3 states have internal predecessors, (1454), 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) [2023-11-06 22:14:43,467 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:14:43,468 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:14:43,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:14:43,473 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 22:14:43,473 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:43,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1322268012, now seen corresponding path program 1 times [2023-11-06 22:14:43,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:43,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888017102] [2023-11-06 22:14:43,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:43,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:43,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:43,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:43,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888017102] [2023-11-06 22:14:43,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888017102] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:14:43,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:14:43,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:14:43,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697043782] [2023-11-06 22:14:43,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:14:43,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:14:43,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:43,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:14:43,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:14:43,838 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 1032 [2023-11-06 22:14:43,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 91 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 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) [2023-11-06 22:14:43,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:14:43,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 1032 [2023-11-06 22:14:43,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:14:44,609 INFO L124 PetriNetUnfolderBase]: 1794/4199 cut-off events. [2023-11-06 22:14:44,610 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-11-06 22:14:44,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6638 conditions, 4199 events. 1794/4199 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 33426 event pairs, 1035 based on Foata normal form. 0/3177 useless extension candidates. Maximal degree in co-relation 6634. Up to 2377 conditions per place. [2023-11-06 22:14:44,643 INFO L140 encePairwiseOnDemand]: 1029/1032 looper letters, 36 selfloop transitions, 2 changer transitions 0/92 dead transitions. [2023-11-06 22:14:44,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 92 transitions, 268 flow [2023-11-06 22:14:44,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:14:44,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:14:44,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1470 transitions. [2023-11-06 22:14:44,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4748062015503876 [2023-11-06 22:14:44,649 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1470 transitions. [2023-11-06 22:14:44,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1470 transitions. [2023-11-06 22:14:44,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:14:44,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1470 transitions. [2023-11-06 22:14:44,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 490.0) internal successors, (1470), 3 states have internal predecessors, (1470), 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) [2023-11-06 22:14:44,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 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) [2023-11-06 22:14:44,667 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 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) [2023-11-06 22:14:44,667 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 190 flow. Second operand 3 states and 1470 transitions. [2023-11-06 22:14:44,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 92 transitions, 268 flow [2023-11-06 22:14:44,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 92 transitions, 267 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:14:44,670 INFO L231 Difference]: Finished difference. Result has 92 places, 92 transitions, 201 flow [2023-11-06 22:14:44,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=92, PETRI_TRANSITIONS=92} [2023-11-06 22:14:44,672 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -49 predicate places. [2023-11-06 22:14:44,672 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 92 transitions, 201 flow [2023-11-06 22:14:44,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 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) [2023-11-06 22:14:44,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:14:44,674 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:14:44,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:14:44,674 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 22:14:44,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:44,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1419361708, now seen corresponding path program 1 times [2023-11-06 22:14:44,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:44,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276579249] [2023-11-06 22:14:44,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:44,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:44,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:14:44,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:44,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276579249] [2023-11-06 22:14:44,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276579249] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:14:44,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:14:44,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:14:44,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616334259] [2023-11-06 22:14:44,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:14:44,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:14:44,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:44,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:14:44,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:14:45,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 475 out of 1032 [2023-11-06 22:14:45,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 92 transitions, 201 flow. Second operand has 4 states, 4 states have (on average 477.75) internal successors, (1911), 4 states have internal predecessors, (1911), 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) [2023-11-06 22:14:45,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:14:45,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 475 of 1032 [2023-11-06 22:14:45,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:14:45,830 INFO L124 PetriNetUnfolderBase]: 1794/4201 cut-off events. [2023-11-06 22:14:45,830 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-11-06 22:14:45,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6648 conditions, 4201 events. 1794/4201 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 33397 event pairs, 1035 based on Foata normal form. 0/3178 useless extension candidates. Maximal degree in co-relation 6643. Up to 2376 conditions per place. [2023-11-06 22:14:45,861 INFO L140 encePairwiseOnDemand]: 1025/1032 looper letters, 34 selfloop transitions, 6 changer transitions 0/94 dead transitions. [2023-11-06 22:14:45,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 94 transitions, 285 flow [2023-11-06 22:14:45,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:14:45,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:14:45,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1942 transitions. [2023-11-06 22:14:45,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47044573643410853 [2023-11-06 22:14:45,870 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1942 transitions. [2023-11-06 22:14:45,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1942 transitions. [2023-11-06 22:14:45,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:14:45,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1942 transitions. [2023-11-06 22:14:45,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 485.5) internal successors, (1942), 4 states have internal predecessors, (1942), 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) [2023-11-06 22:14:45,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1032.0) internal successors, (5160), 5 states have internal predecessors, (5160), 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) [2023-11-06 22:14:45,895 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1032.0) internal successors, (5160), 5 states have internal predecessors, (5160), 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) [2023-11-06 22:14:45,895 INFO L175 Difference]: Start difference. First operand has 92 places, 92 transitions, 201 flow. Second operand 4 states and 1942 transitions. [2023-11-06 22:14:45,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 94 transitions, 285 flow [2023-11-06 22:14:45,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 94 transitions, 281 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-06 22:14:45,902 INFO L231 Difference]: Finished difference. Result has 95 places, 94 transitions, 225 flow [2023-11-06 22:14:45,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=225, PETRI_PLACES=95, PETRI_TRANSITIONS=94} [2023-11-06 22:14:45,907 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -46 predicate places. [2023-11-06 22:14:45,907 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 94 transitions, 225 flow [2023-11-06 22:14:45,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 477.75) internal successors, (1911), 4 states have internal predecessors, (1911), 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) [2023-11-06 22:14:45,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:14:45,908 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:14:45,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:14:45,909 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 22:14:45,909 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:45,909 INFO L85 PathProgramCache]: Analyzing trace with hash 956331523, now seen corresponding path program 1 times [2023-11-06 22:14:45,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:45,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345522494] [2023-11-06 22:14:45,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:45,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:46,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:14:46,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:46,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345522494] [2023-11-06 22:14:46,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345522494] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:14:46,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:14:46,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:14:46,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782697253] [2023-11-06 22:14:46,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:14:46,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:14:46,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:46,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:14:46,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:14:47,336 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 1032 [2023-11-06 22:14:47,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 94 transitions, 225 flow. Second operand has 6 states, 6 states have (on average 476.0) internal successors, (2856), 6 states have internal predecessors, (2856), 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) [2023-11-06 22:14:47,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:14:47,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 1032 [2023-11-06 22:14:47,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:14:50,475 INFO L124 PetriNetUnfolderBase]: 9666/16010 cut-off events. [2023-11-06 22:14:50,475 INFO L125 PetriNetUnfolderBase]: For 25/38 co-relation queries the response was YES. [2023-11-06 22:14:50,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28470 conditions, 16010 events. 9666/16010 cut-off events. For 25/38 co-relation queries the response was YES. Maximal size of possible extension queue 596. Compared 119795 event pairs, 2799 based on Foata normal form. 3/11688 useless extension candidates. Maximal degree in co-relation 28464. Up to 6917 conditions per place. [2023-11-06 22:14:50,613 INFO L140 encePairwiseOnDemand]: 1025/1032 looper letters, 125 selfloop transitions, 9 changer transitions 0/182 dead transitions. [2023-11-06 22:14:50,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 182 transitions, 671 flow [2023-11-06 22:14:50,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:14:50,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:14:50,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2970 transitions. [2023-11-06 22:14:50,628 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4796511627906977 [2023-11-06 22:14:50,629 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2970 transitions. [2023-11-06 22:14:50,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2970 transitions. [2023-11-06 22:14:50,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:14:50,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2970 transitions. [2023-11-06 22:14:50,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 495.0) internal successors, (2970), 6 states have internal predecessors, (2970), 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) [2023-11-06 22:14:50,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1032.0) internal successors, (7224), 7 states have internal predecessors, (7224), 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) [2023-11-06 22:14:50,670 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1032.0) internal successors, (7224), 7 states have internal predecessors, (7224), 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) [2023-11-06 22:14:50,679 INFO L175 Difference]: Start difference. First operand has 95 places, 94 transitions, 225 flow. Second operand 6 states and 2970 transitions. [2023-11-06 22:14:50,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 182 transitions, 671 flow [2023-11-06 22:14:50,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 182 transitions, 670 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:14:50,685 INFO L231 Difference]: Finished difference. Result has 104 places, 102 transitions, 288 flow [2023-11-06 22:14:50,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=288, PETRI_PLACES=104, PETRI_TRANSITIONS=102} [2023-11-06 22:14:50,687 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -37 predicate places. [2023-11-06 22:14:50,688 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 102 transitions, 288 flow [2023-11-06 22:14:50,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 476.0) internal successors, (2856), 6 states have internal predecessors, (2856), 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) [2023-11-06 22:14:50,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:14:50,690 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:14:50,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:14:50,691 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 22:14:50,691 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:50,692 INFO L85 PathProgramCache]: Analyzing trace with hash -464881304, now seen corresponding path program 1 times [2023-11-06 22:14:50,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:50,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333533672] [2023-11-06 22:14:50,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:50,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:50,976 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:14:50,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:50,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333533672] [2023-11-06 22:14:50,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333533672] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:14:50,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102887489] [2023-11-06 22:14:50,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:50,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:14:50,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:50,982 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:14:51,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:14:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:51,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:14:51,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:51,335 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:14:51,339 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:14:51,408 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:14:51,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102887489] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:14:51,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:14:51,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-06 22:14:51,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985677085] [2023-11-06 22:14:51,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:14:51,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:14:51,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:51,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:14:51,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:14:52,452 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 464 out of 1032 [2023-11-06 22:14:52,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 102 transitions, 288 flow. Second operand has 12 states, 12 states have (on average 465.75) internal successors, (5589), 12 states have internal predecessors, (5589), 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) [2023-11-06 22:14:52,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:14:52,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 464 of 1032 [2023-11-06 22:14:52,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:14:54,758 INFO L124 PetriNetUnfolderBase]: 5445/11930 cut-off events. [2023-11-06 22:14:54,758 INFO L125 PetriNetUnfolderBase]: For 1677/1707 co-relation queries the response was YES. [2023-11-06 22:14:54,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21705 conditions, 11930 events. 5445/11930 cut-off events. For 1677/1707 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 107838 event pairs, 2933 based on Foata normal form. 0/9197 useless extension candidates. Maximal degree in co-relation 21695. Up to 5667 conditions per place. [2023-11-06 22:14:54,987 INFO L140 encePairwiseOnDemand]: 1022/1032 looper letters, 80 selfloop transitions, 22 changer transitions 0/159 dead transitions. [2023-11-06 22:14:54,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 159 transitions, 692 flow [2023-11-06 22:14:54,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:14:54,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 22:14:55,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4267 transitions. [2023-11-06 22:14:55,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45940999138673555 [2023-11-06 22:14:55,005 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 4267 transitions. [2023-11-06 22:14:55,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 4267 transitions. [2023-11-06 22:14:55,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:14:55,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 4267 transitions. [2023-11-06 22:14:55,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 474.1111111111111) internal successors, (4267), 9 states have internal predecessors, (4267), 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) [2023-11-06 22:14:55,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 1032.0) internal successors, (10320), 10 states have internal predecessors, (10320), 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) [2023-11-06 22:14:55,045 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 1032.0) internal successors, (10320), 10 states have internal predecessors, (10320), 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) [2023-11-06 22:14:55,045 INFO L175 Difference]: Start difference. First operand has 104 places, 102 transitions, 288 flow. Second operand 9 states and 4267 transitions. [2023-11-06 22:14:55,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 159 transitions, 692 flow [2023-11-06 22:14:55,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 159 transitions, 692 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:14:55,078 INFO L231 Difference]: Finished difference. Result has 116 places, 118 transitions, 443 flow [2023-11-06 22:14:55,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=443, PETRI_PLACES=116, PETRI_TRANSITIONS=118} [2023-11-06 22:14:55,081 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -25 predicate places. [2023-11-06 22:14:55,081 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 118 transitions, 443 flow [2023-11-06 22:14:55,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 465.75) internal successors, (5589), 12 states have internal predecessors, (5589), 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) [2023-11-06 22:14:55,083 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:14:55,083 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:14:55,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:55,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-06 22:14:55,295 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 22:14:55,295 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:55,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1102758580, now seen corresponding path program 1 times [2023-11-06 22:14:55,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:55,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627946420] [2023-11-06 22:14:55,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:55,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:55,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:14:55,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:55,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627946420] [2023-11-06 22:14:55,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627946420] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:14:55,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498705416] [2023-11-06 22:14:55,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:55,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:14:55,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:55,590 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:14:55,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:14:55,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:55,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:14:55,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:55,893 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:14:55,893 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:14:55,964 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:14:55,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498705416] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:14:55,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:14:55,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-06 22:14:55,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312056084] [2023-11-06 22:14:55,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:14:55,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:14:55,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:55,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:14:55,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:14:56,706 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 464 out of 1032 [2023-11-06 22:14:56,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 118 transitions, 443 flow. Second operand has 12 states, 12 states have (on average 466.1666666666667) internal successors, (5594), 12 states have internal predecessors, (5594), 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) [2023-11-06 22:14:56,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:14:56,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 464 of 1032 [2023-11-06 22:14:56,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:14:58,607 INFO L124 PetriNetUnfolderBase]: 4485/10188 cut-off events. [2023-11-06 22:14:58,608 INFO L125 PetriNetUnfolderBase]: For 1701/1779 co-relation queries the response was YES. [2023-11-06 22:14:58,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18739 conditions, 10188 events. 4485/10188 cut-off events. For 1701/1779 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 92948 event pairs, 2563 based on Foata normal form. 33/7948 useless extension candidates. Maximal degree in co-relation 18724. Up to 5647 conditions per place. [2023-11-06 22:14:58,694 INFO L140 encePairwiseOnDemand]: 1022/1032 looper letters, 68 selfloop transitions, 22 changer transitions 0/148 dead transitions. [2023-11-06 22:14:58,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 148 transitions, 706 flow [2023-11-06 22:14:58,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:14:58,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 22:14:58,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4263 transitions. [2023-11-06 22:14:58,713 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4589793281653747 [2023-11-06 22:14:58,713 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 4263 transitions. [2023-11-06 22:14:58,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 4263 transitions. [2023-11-06 22:14:58,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:14:58,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 4263 transitions. [2023-11-06 22:14:58,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 473.6666666666667) internal successors, (4263), 9 states have internal predecessors, (4263), 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) [2023-11-06 22:14:58,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 1032.0) internal successors, (10320), 10 states have internal predecessors, (10320), 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) [2023-11-06 22:14:58,751 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 1032.0) internal successors, (10320), 10 states have internal predecessors, (10320), 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) [2023-11-06 22:14:58,751 INFO L175 Difference]: Start difference. First operand has 116 places, 118 transitions, 443 flow. Second operand 9 states and 4263 transitions. [2023-11-06 22:14:58,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 148 transitions, 706 flow [2023-11-06 22:14:58,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 148 transitions, 678 flow, removed 8 selfloop flow, removed 1 redundant places. [2023-11-06 22:14:58,780 INFO L231 Difference]: Finished difference. Result has 125 places, 120 transitions, 476 flow [2023-11-06 22:14:58,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=476, PETRI_PLACES=125, PETRI_TRANSITIONS=120} [2023-11-06 22:14:58,784 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -16 predicate places. [2023-11-06 22:14:58,788 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 120 transitions, 476 flow [2023-11-06 22:14:58,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 466.1666666666667) internal successors, (5594), 12 states have internal predecessors, (5594), 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) [2023-11-06 22:14:58,790 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:14:58,790 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:14:58,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:58,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b8e0da-3144-4eba-ad08-c5c0f37e889d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:14:58,997 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 22:14:58,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:58,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1902233025, now seen corresponding path program 2 times [2023-11-06 22:14:58,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:58,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991702619] [2023-11-06 22:14:58,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:59,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:59,793 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-06 22:14:59,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:59,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991702619] [2023-11-06 22:14:59,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991702619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:14:59,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:14:59,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:14:59,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236111172] [2023-11-06 22:14:59,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:14:59,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:14:59,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:59,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:14:59,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:15:00,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 1032 [2023-11-06 22:15:00,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 120 transitions, 476 flow. Second operand has 6 states, 6 states have (on average 468.6666666666667) internal successors, (2812), 6 states have internal predecessors, (2812), 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) [2023-11-06 22:15:00,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:15:00,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 1032 [2023-11-06 22:15:00,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:15:05,052 INFO L124 PetriNetUnfolderBase]: 13510/22533 cut-off events. [2023-11-06 22:15:05,053 INFO L125 PetriNetUnfolderBase]: For 6486/7383 co-relation queries the response was YES. [2023-11-06 22:15:05,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49413 conditions, 22533 events. 13510/22533 cut-off events. For 6486/7383 co-relation queries the response was YES. Maximal size of possible extension queue 839. Compared 176297 event pairs, 3108 based on Foata normal form. 43/16703 useless extension candidates. Maximal degree in co-relation 49395. Up to 10560 conditions per place. [2023-11-06 22:15:05,362 INFO L140 encePairwiseOnDemand]: 1016/1032 looper letters, 126 selfloop transitions, 33 changer transitions 0/207 dead transitions. [2023-11-06 22:15:05,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 207 transitions, 1064 flow [2023-11-06 22:15:05,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:15:05,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:15:05,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2917 transitions. [2023-11-06 22:15:05,373 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4710917312661499 [2023-11-06 22:15:05,373 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2917 transitions. [2023-11-06 22:15:05,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2917 transitions. [2023-11-06 22:15:05,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:15:05,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2917 transitions. [2023-11-06 22:15:05,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 486.1666666666667) internal successors, (2917), 6 states have internal predecessors, (2917), 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) [2023-11-06 22:15:05,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1032.0) internal successors, (7224), 7 states have internal predecessors, (7224), 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) [2023-11-06 22:15:05,398 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1032.0) internal successors, (7224), 7 states have internal predecessors, (7224), 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) [2023-11-06 22:15:05,399 INFO L175 Difference]: Start difference. First operand has 125 places, 120 transitions, 476 flow. Second operand 6 states and 2917 transitions. [2023-11-06 22:15:05,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 207 transitions, 1064 flow [2023-11-06 22:15:05,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 207 transitions, 1027 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 22:15:05,575 INFO L231 Difference]: Finished difference. Result has 129 places, 152 transitions, 745 flow [2023-11-06 22:15:05,576 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=745, PETRI_PLACES=129, PETRI_TRANSITIONS=152} [2023-11-06 22:15:05,576 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -12 predicate places. [2023-11-06 22:15:05,577 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 152 transitions, 745 flow [2023-11-06 22:15:05,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 468.6666666666667) internal successors, (2812), 6 states have internal predecessors, (2812), 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) [2023-11-06 22:15:05,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:15:05,578 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:15:05,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:15:05,578 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 22:15:05,579 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:05,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1160331369, now seen corresponding path program 1 times [2023-11-06 22:15:05,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:05,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283418978] [2023-11-06 22:15:05,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:05,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:05,673 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-06 22:15:05,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:15:05,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283418978] [2023-11-06 22:15:05,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283418978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:15:05,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:15:05,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:15:05,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586376028] [2023-11-06 22:15:05,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:15:05,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:15:05,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:15:05,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:15:05,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:15:05,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 1032 [2023-11-06 22:15:05,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 152 transitions, 745 flow. Second operand has 3 states, 3 states have (on average 491.0) internal successors, (1473), 3 states have internal predecessors, (1473), 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) [2023-11-06 22:15:05,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:15:05,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 1032 [2023-11-06 22:15:05,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:15:10,087 INFO L124 PetriNetUnfolderBase]: 14237/27902 cut-off events. [2023-11-06 22:15:10,088 INFO L125 PetriNetUnfolderBase]: For 22613/25213 co-relation queries the response was YES. [2023-11-06 22:15:10,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69304 conditions, 27902 events. 14237/27902 cut-off events. For 22613/25213 co-relation queries the response was YES. Maximal size of possible extension queue 778. Compared 256384 event pairs, 3005 based on Foata normal form. 54/21640 useless extension candidates. Maximal degree in co-relation 69282. Up to 10907 conditions per place. [2023-11-06 22:15:10,561 INFO L140 encePairwiseOnDemand]: 1028/1032 looper letters, 130 selfloop transitions, 6 changer transitions 0/202 dead transitions. [2023-11-06 22:15:10,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 202 transitions, 1327 flow [2023-11-06 22:15:10,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:15:10,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:15:10,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1523 transitions. [2023-11-06 22:15:10,569 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4919250645994832 [2023-11-06 22:15:10,569 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1523 transitions. [2023-11-06 22:15:10,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1523 transitions. [2023-11-06 22:15:10,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:15:10,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1523 transitions. [2023-11-06 22:15:10,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 507.6666666666667) internal successors, (1523), 3 states have internal predecessors, (1523), 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) [2023-11-06 22:15:10,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 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) [2023-11-06 22:15:10,587 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 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) [2023-11-06 22:15:10,587 INFO L175 Difference]: Start difference. First operand has 129 places, 152 transitions, 745 flow. Second operand 3 states and 1523 transitions. [2023-11-06 22:15:10,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 202 transitions, 1327 flow [2023-11-06 22:15:10,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 202 transitions, 1327 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:15:10,807 INFO L231 Difference]: Finished difference. Result has 131 places, 155 transitions, 789 flow [2023-11-06 22:15:10,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=743, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=789, PETRI_PLACES=131, PETRI_TRANSITIONS=155} [2023-11-06 22:15:10,809 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -10 predicate places. [2023-11-06 22:15:10,809 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 155 transitions, 789 flow [2023-11-06 22:15:10,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 491.0) internal successors, (1473), 3 states have internal predecessors, (1473), 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) [2023-11-06 22:15:10,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:15:10,811 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:15:10,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:15:10,811 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 22:15:10,811 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:10,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1610538985, now seen corresponding path program 1 times [2023-11-06 22:15:10,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:10,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5547499] [2023-11-06 22:15:10,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:10,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:10,932 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-06 22:15:10,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:15:10,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5547499] [2023-11-06 22:15:10,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5547499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:15:10,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:15:10,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:15:10,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254718632] [2023-11-06 22:15:10,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:15:10,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:15:10,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:15:10,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:15:10,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:15:10,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 482 out of 1032 [2023-11-06 22:15:10,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 155 transitions, 789 flow. Second operand has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 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) [2023-11-06 22:15:10,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:15:10,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 482 of 1032 [2023-11-06 22:15:10,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:15:15,546 INFO L124 PetriNetUnfolderBase]: 15498/28752 cut-off events. [2023-11-06 22:15:15,546 INFO L125 PetriNetUnfolderBase]: For 29150/32155 co-relation queries the response was YES. [2023-11-06 22:15:15,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74720 conditions, 28752 events. 15498/28752 cut-off events. For 29150/32155 co-relation queries the response was YES. Maximal size of possible extension queue 798. Compared 254131 event pairs, 7319 based on Foata normal form. 49/22858 useless extension candidates. Maximal degree in co-relation 74697. Up to 19853 conditions per place. [2023-11-06 22:15:15,883 INFO L140 encePairwiseOnDemand]: 1029/1032 looper letters, 87 selfloop transitions, 4 changer transitions 0/153 dead transitions. [2023-11-06 22:15:15,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 153 transitions, 967 flow [2023-11-06 22:15:15,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:15:15,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:15:15,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1487 transitions. [2023-11-06 22:15:15,890 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.480297157622739 [2023-11-06 22:15:15,890 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1487 transitions. [2023-11-06 22:15:15,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1487 transitions. [2023-11-06 22:15:15,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:15:15,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1487 transitions. [2023-11-06 22:15:15,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 495.6666666666667) internal successors, (1487), 3 states have internal predecessors, (1487), 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) [2023-11-06 22:15:15,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 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) [2023-11-06 22:15:15,904 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 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) [2023-11-06 22:15:15,904 INFO L175 Difference]: Start difference. First operand has 131 places, 155 transitions, 789 flow. Second operand 3 states and 1487 transitions. [2023-11-06 22:15:15,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 153 transitions, 967 flow [2023-11-06 22:15:16,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 153 transitions, 961 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:15:16,078 INFO L231 Difference]: Finished difference. Result has 130 places, 153 transitions, 787 flow [2023-11-06 22:15:16,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=787, PETRI_PLACES=130, PETRI_TRANSITIONS=153} [2023-11-06 22:15:16,079 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -11 predicate places. [2023-11-06 22:15:16,080 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 153 transitions, 787 flow [2023-11-06 22:15:16,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 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) [2023-11-06 22:15:16,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:15:16,080 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:15:16,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:15:16,081 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 22:15:16,081 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:16,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1781579389, now seen corresponding path program 2 times [2023-11-06 22:15:16,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:16,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830222810] [2023-11-06 22:15:16,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:16,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:17,353 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-06 22:15:17,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:15:17,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830222810] [2023-11-06 22:15:17,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830222810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:15:17,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:15:17,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:15:17,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333182042] [2023-11-06 22:15:17,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:15:17,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:15:17,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:15:17,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:15:17,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:15:19,744 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 1032 [2023-11-06 22:15:19,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 153 transitions, 787 flow. Second operand has 11 states, 11 states have (on average 459.8181818181818) internal successors, (5058), 11 states have internal predecessors, (5058), 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) [2023-11-06 22:15:19,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:15:19,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 1032 [2023-11-06 22:15:19,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:15:27,181 INFO L124 PetriNetUnfolderBase]: 26799/41059 cut-off events. [2023-11-06 22:15:27,181 INFO L125 PetriNetUnfolderBase]: For 38322/46218 co-relation queries the response was YES. [2023-11-06 22:15:27,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112972 conditions, 41059 events. 26799/41059 cut-off events. For 38322/46218 co-relation queries the response was YES. Maximal size of possible extension queue 1072. Compared 301865 event pairs, 3082 based on Foata normal form. 1995/33567 useless extension candidates. Maximal degree in co-relation 112948. Up to 11856 conditions per place. [2023-11-06 22:15:27,604 INFO L140 encePairwiseOnDemand]: 1025/1032 looper letters, 226 selfloop transitions, 12 changer transitions 0/292 dead transitions. [2023-11-06 22:15:27,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 292 transitions, 1963 flow [2023-11-06 22:15:27,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:15:27,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:15:27,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 3787 transitions. [2023-11-06 22:15:27,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4586967054263566 [2023-11-06 22:15:27,620 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 3787 transitions. [2023-11-06 22:15:27,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 3787 transitions. [2023-11-06 22:15:27,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:15:27,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 3787 transitions. [2023-11-06 22:15:27,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 473.375) internal successors, (3787), 8 states have internal predecessors, (3787), 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) [2023-11-06 22:15:27,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 1032.0) internal successors, (9288), 9 states have internal predecessors, (9288), 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) [2023-11-06 22:15:27,647 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 1032.0) internal successors, (9288), 9 states have internal predecessors, (9288), 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) [2023-11-06 22:15:27,648 INFO L175 Difference]: Start difference. First operand has 130 places, 153 transitions, 787 flow. Second operand 8 states and 3787 transitions. [2023-11-06 22:15:27,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 292 transitions, 1963 flow [2023-11-06 22:15:28,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 292 transitions, 1952 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:15:28,520 INFO L231 Difference]: Finished difference. Result has 134 places, 152 transitions, 796 flow [2023-11-06 22:15:28,521 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=796, PETRI_PLACES=134, PETRI_TRANSITIONS=152} [2023-11-06 22:15:28,521 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -7 predicate places. [2023-11-06 22:15:28,521 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 152 transitions, 796 flow [2023-11-06 22:15:28,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 459.8181818181818) internal successors, (5058), 11 states have internal predecessors, (5058), 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) [2023-11-06 22:15:28,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:15:28,522 INFO L208 CegarLoopForPetriNet]: trace histogram [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] [2023-11-06 22:15:28,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:15:28,523 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 22:15:28,523 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:28,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1565778219, now seen corresponding path program 1 times [2023-11-06 22:15:28,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:28,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964506305] [2023-11-06 22:15:28,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:28,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:29,578 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-06 22:15:29,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:15:29,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964506305] [2023-11-06 22:15:29,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964506305] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:15:29,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:15:29,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:15:29,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131021036] [2023-11-06 22:15:29,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:15:29,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:15:29,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:15:29,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:15:29,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:15:31,353 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 1032 [2023-11-06 22:15:31,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 152 transitions, 796 flow. Second operand has 9 states, 9 states have (on average 456.8888888888889) internal successors, (4112), 9 states have internal predecessors, (4112), 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) [2023-11-06 22:15:31,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:15:31,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 1032 [2023-11-06 22:15:31,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:15:40,652 INFO L124 PetriNetUnfolderBase]: 27560/50143 cut-off events. [2023-11-06 22:15:40,652 INFO L125 PetriNetUnfolderBase]: For 55442/62353 co-relation queries the response was YES. [2023-11-06 22:15:41,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130793 conditions, 50143 events. 27560/50143 cut-off events. For 55442/62353 co-relation queries the response was YES. Maximal size of possible extension queue 991. Compared 449156 event pairs, 5422 based on Foata normal form. 271/40437 useless extension candidates. Maximal degree in co-relation 130770. Up to 20568 conditions per place. [2023-11-06 22:15:41,180 INFO L140 encePairwiseOnDemand]: 1017/1032 looper letters, 196 selfloop transitions, 66 changer transitions 0/319 dead transitions. [2023-11-06 22:15:41,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 319 transitions, 2350 flow [2023-11-06 22:15:41,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:15:41,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 22:15:41,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4673 transitions. [2023-11-06 22:15:41,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45281007751937985 [2023-11-06 22:15:41,190 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4673 transitions. [2023-11-06 22:15:41,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4673 transitions. [2023-11-06 22:15:41,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:15:41,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4673 transitions. [2023-11-06 22:15:41,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 467.3) internal successors, (4673), 10 states have internal predecessors, (4673), 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) [2023-11-06 22:15:41,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 1032.0) internal successors, (11352), 11 states have internal predecessors, (11352), 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) [2023-11-06 22:15:41,214 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 1032.0) internal successors, (11352), 11 states have internal predecessors, (11352), 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) [2023-11-06 22:15:41,214 INFO L175 Difference]: Start difference. First operand has 134 places, 152 transitions, 796 flow. Second operand 10 states and 4673 transitions. [2023-11-06 22:15:41,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 319 transitions, 2350 flow [2023-11-06 22:15:41,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 319 transitions, 2328 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 22:15:41,331 INFO L231 Difference]: Finished difference. Result has 141 places, 204 transitions, 1489 flow [2023-11-06 22:15:41,331 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1489, PETRI_PLACES=141, PETRI_TRANSITIONS=204} [2023-11-06 22:15:41,332 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 0 predicate places. [2023-11-06 22:15:41,332 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 204 transitions, 1489 flow [2023-11-06 22:15:41,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 456.8888888888889) internal successors, (4112), 9 states have internal predecessors, (4112), 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) [2023-11-06 22:15:41,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:15:41,333 INFO L208 CegarLoopForPetriNet]: trace histogram [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] [2023-11-06 22:15:41,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:15:41,334 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 22:15:41,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:41,334 INFO L85 PathProgramCache]: Analyzing trace with hash 162118033, now seen corresponding path program 2 times [2023-11-06 22:15:41,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:41,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077207384] [2023-11-06 22:15:41,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:41,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:42,455 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-06 22:15:42,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:15:42,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077207384] [2023-11-06 22:15:42,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077207384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:15:42,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:15:42,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:15:42,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158923681] [2023-11-06 22:15:42,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:15:42,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:15:42,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:15:42,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:15:42,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:15:44,136 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 1032 [2023-11-06 22:15:44,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 204 transitions, 1489 flow. Second operand has 9 states, 9 states have (on average 456.8888888888889) internal successors, (4112), 9 states have internal predecessors, (4112), 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) [2023-11-06 22:15:44,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:15:44,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 1032 [2023-11-06 22:15:44,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand