./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/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_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/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_48ec1c55-1002-4ed2-a6ba-79b22884fab8/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 4b8273370cd4ec5730806cf9b8f54c915e93daab6c48b9546d3920e402afdc55 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:14:55,860 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:14:55,954 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 21:14:55,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:14:55,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:14:55,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:14:55,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:14:55,991 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:14:55,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:14:55,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:14:55,994 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:14:55,994 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:14:55,995 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:14:55,996 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:14:55,996 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:14:55,997 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:14:55,997 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:14:55,998 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:14:55,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:14:55,999 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:14:55,999 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:14:56,000 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:14:56,001 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 21:14:56,001 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:14:56,001 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:14:56,002 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:14:56,002 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:14:56,003 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:14:56,003 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:14:56,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:14:56,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:14:56,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:14:56,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:14:56,005 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:14:56,006 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:14:56,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:14:56,006 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:14:56,006 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:14:56,007 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:14:56,007 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:14:56,007 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:14:56,007 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_48ec1c55-1002-4ed2-a6ba-79b22884fab8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b8273370cd4ec5730806cf9b8f54c915e93daab6c48b9546d3920e402afdc55 [2023-11-06 21:14:56,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:14:56,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:14:56,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:14:56,361 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:14:56,361 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:14:56,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2023-11-06 21:14:59,520 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:14:59,745 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:14:59,745 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2023-11-06 21:14:59,755 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP/data/8c78e9187/1fdc767f1939468784e2430d9f10c70f/FLAG280077d51 [2023-11-06 21:14:59,770 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP/data/8c78e9187/1fdc767f1939468784e2430d9f10c70f [2023-11-06 21:14:59,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:14:59,775 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:14:59,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:14:59,777 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:14:59,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:14:59,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:14:59" (1/1) ... [2023-11-06 21:14:59,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b41ccbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:59, skipping insertion in model container [2023-11-06 21:14:59,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:14:59" (1/1) ... [2023-11-06 21:14:59,823 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:15:00,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:15:00,115 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:15:00,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:15:00,193 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:15:00,193 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:15:00,201 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:15:00,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:00 WrapperNode [2023-11-06 21:15:00,202 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:15:00,203 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:15:00,203 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:15:00,203 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:15:00,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:00" (1/1) ... [2023-11-06 21:15:00,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:00" (1/1) ... [2023-11-06 21:15:00,286 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 222 [2023-11-06 21:15:00,286 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:15:00,287 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:15:00,287 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:15:00,287 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:15:00,301 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:00" (1/1) ... [2023-11-06 21:15:00,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:00" (1/1) ... [2023-11-06 21:15:00,323 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:00" (1/1) ... [2023-11-06 21:15:00,323 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:00" (1/1) ... [2023-11-06 21:15:00,361 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:00" (1/1) ... [2023-11-06 21:15:00,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:00" (1/1) ... [2023-11-06 21:15:00,372 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:00" (1/1) ... [2023-11-06 21:15:00,374 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:00" (1/1) ... [2023-11-06 21:15:00,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:15:00,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:15:00,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:15:00,388 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:15:00,394 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:00" (1/1) ... [2023-11-06 21:15:00,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:15:00,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:15:00,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:15:00,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:15:00,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:15:00,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:15:00,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:15:00,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:15:00,491 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 21:15:00,491 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 21:15:00,491 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 21:15:00,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 21:15:00,492 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 21:15:00,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 21:15:00,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:15:00,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 21:15:00,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 21:15:00,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:15:00,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:15:00,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:15:00,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:15:00,498 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 21:15:00,680 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:15:00,682 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:15:01,493 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:15:01,612 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:15:01,612 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-06 21:15:01,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:15:01 BoogieIcfgContainer [2023-11-06 21:15:01,615 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:15:01,618 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:15:01,618 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:15:01,622 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:15:01,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:14:59" (1/3) ... [2023-11-06 21:15:01,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b334492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:15:01, skipping insertion in model container [2023-11-06 21:15:01,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:00" (2/3) ... [2023-11-06 21:15:01,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b334492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:15:01, skipping insertion in model container [2023-11-06 21:15:01,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:15:01" (3/3) ... [2023-11-06 21:15:01,626 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2023-11-06 21:15:01,635 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:15:01,648 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:15:01,648 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2023-11-06 21:15:01,648 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:15:01,763 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 21:15:01,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 361 places, 371 transitions, 763 flow [2023-11-06 21:15:01,984 INFO L124 PetriNetUnfolderBase]: 20/368 cut-off events. [2023-11-06 21:15:01,985 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 21:15:01,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 368 events. 20/368 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 459 event pairs, 0 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 289. Up to 2 conditions per place. [2023-11-06 21:15:01,995 INFO L82 GeneralOperation]: Start removeDead. Operand has 361 places, 371 transitions, 763 flow [2023-11-06 21:15:02,011 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 336 places, 345 transitions, 708 flow [2023-11-06 21:15:02,015 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:15:02,031 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 336 places, 345 transitions, 708 flow [2023-11-06 21:15:02,036 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 336 places, 345 transitions, 708 flow [2023-11-06 21:15:02,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 336 places, 345 transitions, 708 flow [2023-11-06 21:15:02,133 INFO L124 PetriNetUnfolderBase]: 19/345 cut-off events. [2023-11-06 21:15:02,133 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 21:15:02,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 345 events. 19/345 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 454 event pairs, 0 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 289. Up to 2 conditions per place. [2023-11-06 21:15:02,147 INFO L119 LiptonReduction]: Number of co-enabled transitions 9904 [2023-11-06 21:15:22,551 INFO L134 LiptonReduction]: Checked pairs total: 56573 [2023-11-06 21:15:22,552 INFO L136 LiptonReduction]: Total number of compositions: 339 [2023-11-06 21:15:22,568 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:15:22,575 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;@31c60e80, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:15:22,575 INFO L358 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2023-11-06 21:15:22,577 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:15:22,577 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 21:15:22,577 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:15:22,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:15:22,578 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 21:15:22,579 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-06 21:15:22,584 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:22,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1407, now seen corresponding path program 1 times [2023-11-06 21:15:22,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:15:22,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458455352] [2023-11-06 21:15:22,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:15:22,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:15:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:22,712 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 21:15:22,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:15:22,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458455352] [2023-11-06 21:15:22,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458455352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:15:22,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:15:22,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 21:15:22,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415193351] [2023-11-06 21:15:22,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:15:22,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:15:22,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:15:22,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:15:22,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:15:22,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 710 [2023-11-06 21:15:22,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 106 transitions, 230 flow. Second operand has 2 states, 2 states have (on average 336.5) internal successors, (673), 2 states have internal predecessors, (673), 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 21:15:22,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:15:22,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 710 [2023-11-06 21:15:22,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:15:23,395 INFO L124 PetriNetUnfolderBase]: 879/2173 cut-off events. [2023-11-06 21:15:23,397 INFO L125 PetriNetUnfolderBase]: For 82/82 co-relation queries the response was YES. [2023-11-06 21:15:23,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3434 conditions, 2173 events. 879/2173 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 15879 event pairs, 481 based on Foata normal form. 392/2161 useless extension candidates. Maximal degree in co-relation 2995. Up to 1178 conditions per place. [2023-11-06 21:15:23,420 INFO L140 encePairwiseOnDemand]: 678/710 looper letters, 30 selfloop transitions, 0 changer transitions 1/74 dead transitions. [2023-11-06 21:15:23,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 74 transitions, 228 flow [2023-11-06 21:15:23,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:15:23,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 21:15:23,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 735 transitions. [2023-11-06 21:15:23,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5176056338028169 [2023-11-06 21:15:23,445 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 735 transitions. [2023-11-06 21:15:23,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 735 transitions. [2023-11-06 21:15:23,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:15:23,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 735 transitions. [2023-11-06 21:15:23,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 367.5) internal successors, (735), 2 states have internal predecessors, (735), 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 21:15:23,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 710.0) internal successors, (2130), 3 states have internal predecessors, (2130), 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 21:15:23,471 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 710.0) internal successors, (2130), 3 states have internal predecessors, (2130), 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 21:15:23,473 INFO L175 Difference]: Start difference. First operand has 106 places, 106 transitions, 230 flow. Second operand 2 states and 735 transitions. [2023-11-06 21:15:23,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 74 transitions, 228 flow [2023-11-06 21:15:23,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 74 transitions, 216 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 21:15:23,483 INFO L231 Difference]: Finished difference. Result has 72 places, 73 transitions, 151 flow [2023-11-06 21:15:23,485 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=710, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=151, PETRI_PLACES=72, PETRI_TRANSITIONS=73} [2023-11-06 21:15:23,491 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -34 predicate places. [2023-11-06 21:15:23,491 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 73 transitions, 151 flow [2023-11-06 21:15:23,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 336.5) internal successors, (673), 2 states have internal predecessors, (673), 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 21:15:23,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:15:23,493 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:15:23,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:15:23,494 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-06 21:15:23,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:23,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1996151500, now seen corresponding path program 1 times [2023-11-06 21:15:23,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:15:23,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96009436] [2023-11-06 21:15:23,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:15:23,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:15:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:23,740 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 21:15:23,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:15:23,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96009436] [2023-11-06 21:15:23,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96009436] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:15:23,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:15:23,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:15:23,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093957416] [2023-11-06 21:15:23,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:15:23,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:15:23,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:15:23,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:15:23,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:15:23,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 710 [2023-11-06 21:15:23,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 73 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 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 21:15:23,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:15:23,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 710 [2023-11-06 21:15:23,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:15:24,276 INFO L124 PetriNetUnfolderBase]: 1570/3376 cut-off events. [2023-11-06 21:15:24,277 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-06 21:15:24,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5639 conditions, 3376 events. 1570/3376 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 23660 event pairs, 1187 based on Foata normal form. 0/2739 useless extension candidates. Maximal degree in co-relation 5636. Up to 2211 conditions per place. [2023-11-06 21:15:24,307 INFO L140 encePairwiseOnDemand]: 706/710 looper letters, 33 selfloop transitions, 1 changer transitions 0/70 dead transitions. [2023-11-06 21:15:24,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 70 transitions, 213 flow [2023-11-06 21:15:24,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:15:24,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:15:24,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 988 transitions. [2023-11-06 21:15:24,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.463849765258216 [2023-11-06 21:15:24,312 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 988 transitions. [2023-11-06 21:15:24,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 988 transitions. [2023-11-06 21:15:24,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:15:24,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 988 transitions. [2023-11-06 21:15:24,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 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 21:15:24,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 710.0) internal successors, (2840), 4 states have internal predecessors, (2840), 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 21:15:24,324 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 710.0) internal successors, (2840), 4 states have internal predecessors, (2840), 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 21:15:24,324 INFO L175 Difference]: Start difference. First operand has 72 places, 73 transitions, 151 flow. Second operand 3 states and 988 transitions. [2023-11-06 21:15:24,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 70 transitions, 213 flow [2023-11-06 21:15:24,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 70 transitions, 213 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:15:24,327 INFO L231 Difference]: Finished difference. Result has 70 places, 70 transitions, 147 flow [2023-11-06 21:15:24,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=710, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=70, PETRI_TRANSITIONS=70} [2023-11-06 21:15:24,329 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -36 predicate places. [2023-11-06 21:15:24,329 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 70 transitions, 147 flow [2023-11-06 21:15:24,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 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 21:15:24,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:15:24,330 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:15:24,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:15:24,331 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-06 21:15:24,331 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:24,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1548530720, now seen corresponding path program 1 times [2023-11-06 21:15:24,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:15:24,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932516052] [2023-11-06 21:15:24,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:15:24,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:15:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:24,420 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 21:15:24,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:15:24,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932516052] [2023-11-06 21:15:24,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932516052] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:15:24,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:15:24,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:15:24,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78591109] [2023-11-06 21:15:24,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:15:24,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:15:24,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:15:24,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:15:24,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:15:24,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 710 [2023-11-06 21:15:24,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 70 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 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 21:15:24,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:15:24,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 710 [2023-11-06 21:15:24,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:15:24,999 INFO L124 PetriNetUnfolderBase]: 1223/2635 cut-off events. [2023-11-06 21:15:24,999 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-11-06 21:15:25,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4339 conditions, 2635 events. 1223/2635 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 17956 event pairs, 204 based on Foata normal form. 0/2187 useless extension candidates. Maximal degree in co-relation 4335. Up to 1374 conditions per place. [2023-11-06 21:15:25,023 INFO L140 encePairwiseOnDemand]: 707/710 looper letters, 48 selfloop transitions, 2 changer transitions 0/88 dead transitions. [2023-11-06 21:15:25,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 88 transitions, 287 flow [2023-11-06 21:15:25,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:15:25,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:15:25,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1047 transitions. [2023-11-06 21:15:25,027 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4915492957746479 [2023-11-06 21:15:25,027 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1047 transitions. [2023-11-06 21:15:25,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1047 transitions. [2023-11-06 21:15:25,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:15:25,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1047 transitions. [2023-11-06 21:15:25,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 349.0) internal successors, (1047), 3 states have internal predecessors, (1047), 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 21:15:25,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 710.0) internal successors, (2840), 4 states have internal predecessors, (2840), 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 21:15:25,040 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 710.0) internal successors, (2840), 4 states have internal predecessors, (2840), 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 21:15:25,040 INFO L175 Difference]: Start difference. First operand has 70 places, 70 transitions, 147 flow. Second operand 3 states and 1047 transitions. [2023-11-06 21:15:25,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 88 transitions, 287 flow [2023-11-06 21:15:25,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 88 transitions, 286 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:15:25,044 INFO L231 Difference]: Finished difference. Result has 71 places, 71 transitions, 158 flow [2023-11-06 21:15:25,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=710, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=71, PETRI_TRANSITIONS=71} [2023-11-06 21:15:25,046 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -35 predicate places. [2023-11-06 21:15:25,046 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 71 transitions, 158 flow [2023-11-06 21:15:25,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 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 21:15:25,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:15:25,047 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:15:25,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:15:25,052 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-06 21:15:25,053 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:25,053 INFO L85 PathProgramCache]: Analyzing trace with hash 154479728, now seen corresponding path program 1 times [2023-11-06 21:15:25,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:15:25,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65943424] [2023-11-06 21:15:25,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:15:25,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:15:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:25,708 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 21:15:25,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:15:25,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65943424] [2023-11-06 21:15:25,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65943424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:15:25,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:15:25,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:15:25,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546274281] [2023-11-06 21:15:25,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:15:25,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:15:25,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:15:25,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:15:25,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:15:26,095 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 710 [2023-11-06 21:15:26,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 71 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 316.5) internal successors, (1899), 6 states have internal predecessors, (1899), 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 21:15:26,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:15:26,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 710 [2023-11-06 21:15:26,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:15:27,771 INFO L124 PetriNetUnfolderBase]: 4976/7823 cut-off events. [2023-11-06 21:15:27,771 INFO L125 PetriNetUnfolderBase]: For 1078/1088 co-relation queries the response was YES. [2023-11-06 21:15:27,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15605 conditions, 7823 events. 4976/7823 cut-off events. For 1078/1088 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 49719 event pairs, 1260 based on Foata normal form. 0/6202 useless extension candidates. Maximal degree in co-relation 15601. Up to 3541 conditions per place. [2023-11-06 21:15:27,902 INFO L140 encePairwiseOnDemand]: 703/710 looper letters, 93 selfloop transitions, 13 changer transitions 0/139 dead transitions. [2023-11-06 21:15:27,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 139 transitions, 548 flow [2023-11-06 21:15:27,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:15:27,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:15:27,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1981 transitions. [2023-11-06 21:15:27,916 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46502347417840373 [2023-11-06 21:15:27,916 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1981 transitions. [2023-11-06 21:15:27,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1981 transitions. [2023-11-06 21:15:27,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:15:27,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1981 transitions. [2023-11-06 21:15:27,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 330.1666666666667) internal successors, (1981), 6 states have internal predecessors, (1981), 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 21:15:27,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 710.0) internal successors, (4970), 7 states have internal predecessors, (4970), 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 21:15:27,943 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 710.0) internal successors, (4970), 7 states have internal predecessors, (4970), 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 21:15:27,943 INFO L175 Difference]: Start difference. First operand has 71 places, 71 transitions, 158 flow. Second operand 6 states and 1981 transitions. [2023-11-06 21:15:27,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 139 transitions, 548 flow [2023-11-06 21:15:27,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 139 transitions, 548 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:15:27,948 INFO L231 Difference]: Finished difference. Result has 81 places, 83 transitions, 268 flow [2023-11-06 21:15:27,948 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=710, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=268, PETRI_PLACES=81, PETRI_TRANSITIONS=83} [2023-11-06 21:15:27,949 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -25 predicate places. [2023-11-06 21:15:27,949 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 83 transitions, 268 flow [2023-11-06 21:15:27,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 316.5) internal successors, (1899), 6 states have internal predecessors, (1899), 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 21:15:27,951 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:15:27,951 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:15:27,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:15:27,952 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-06 21:15:27,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:27,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1521834500, now seen corresponding path program 1 times [2023-11-06 21:15:27,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:15:27,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023461941] [2023-11-06 21:15:27,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:15:27,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:15:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:28,079 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 21:15:28,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:15:28,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023461941] [2023-11-06 21:15:28,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023461941] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:15:28,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:15:28,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:15:28,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801925849] [2023-11-06 21:15:28,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:15:28,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:15:28,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:15:28,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:15:28,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:15:28,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 710 [2023-11-06 21:15:28,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 83 transitions, 268 flow. Second operand has 5 states, 5 states have (on average 313.6) internal successors, (1568), 5 states have internal predecessors, (1568), 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 21:15:28,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:15:28,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 710 [2023-11-06 21:15:28,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:15:29,898 INFO L124 PetriNetUnfolderBase]: 3444/6954 cut-off events. [2023-11-06 21:15:29,898 INFO L125 PetriNetUnfolderBase]: For 5461/5516 co-relation queries the response was YES. [2023-11-06 21:15:29,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15869 conditions, 6954 events. 3444/6954 cut-off events. For 5461/5516 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 55040 event pairs, 1500 based on Foata normal form. 0/5638 useless extension candidates. Maximal degree in co-relation 15860. Up to 3210 conditions per place. [2023-11-06 21:15:29,966 INFO L140 encePairwiseOnDemand]: 700/710 looper letters, 86 selfloop transitions, 12 changer transitions 0/140 dead transitions. [2023-11-06 21:15:29,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 140 transitions, 707 flow [2023-11-06 21:15:29,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:15:29,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:15:29,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1945 transitions. [2023-11-06 21:15:29,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4565727699530516 [2023-11-06 21:15:29,975 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1945 transitions. [2023-11-06 21:15:29,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1945 transitions. [2023-11-06 21:15:29,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:15:29,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1945 transitions. [2023-11-06 21:15:29,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 324.1666666666667) internal successors, (1945), 6 states have internal predecessors, (1945), 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 21:15:29,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 710.0) internal successors, (4970), 7 states have internal predecessors, (4970), 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 21:15:29,999 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 710.0) internal successors, (4970), 7 states have internal predecessors, (4970), 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 21:15:29,999 INFO L175 Difference]: Start difference. First operand has 81 places, 83 transitions, 268 flow. Second operand 6 states and 1945 transitions. [2023-11-06 21:15:29,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 140 transitions, 707 flow [2023-11-06 21:15:30,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 140 transitions, 707 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:15:30,028 INFO L231 Difference]: Finished difference. Result has 90 places, 93 transitions, 350 flow [2023-11-06 21:15:30,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=710, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=350, PETRI_PLACES=90, PETRI_TRANSITIONS=93} [2023-11-06 21:15:30,033 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -16 predicate places. [2023-11-06 21:15:30,033 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 93 transitions, 350 flow [2023-11-06 21:15:30,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 313.6) internal successors, (1568), 5 states have internal predecessors, (1568), 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 21:15:30,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:15:30,034 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 21:15:30,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 21:15:30,035 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-06 21:15:30,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:30,035 INFO L85 PathProgramCache]: Analyzing trace with hash -245455913, now seen corresponding path program 1 times [2023-11-06 21:15:30,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:15:30,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187882890] [2023-11-06 21:15:30,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:15:30,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:15:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:30,581 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 21:15:30,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:15:30,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187882890] [2023-11-06 21:15:30,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187882890] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:15:30,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:15:30,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:15:30,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531289230] [2023-11-06 21:15:30,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:15:30,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:15:30,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:15:30,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:15:30,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:15:31,018 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 710 [2023-11-06 21:15:31,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 93 transitions, 350 flow. Second operand has 6 states, 6 states have (on average 315.6666666666667) internal successors, (1894), 6 states have internal predecessors, (1894), 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 21:15:31,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:15:31,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 710 [2023-11-06 21:15:31,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:15:34,433 INFO L124 PetriNetUnfolderBase]: 6022/10712 cut-off events. [2023-11-06 21:15:34,433 INFO L125 PetriNetUnfolderBase]: For 9879/10335 co-relation queries the response was YES. [2023-11-06 21:15:34,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25996 conditions, 10712 events. 6022/10712 cut-off events. For 9879/10335 co-relation queries the response was YES. Maximal size of possible extension queue 507. Compared 81082 event pairs, 1764 based on Foata normal form. 3/8743 useless extension candidates. Maximal degree in co-relation 25982. Up to 6175 conditions per place. [2023-11-06 21:15:34,537 INFO L140 encePairwiseOnDemand]: 702/710 looper letters, 100 selfloop transitions, 26 changer transitions 0/163 dead transitions. [2023-11-06 21:15:34,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 163 transitions, 862 flow [2023-11-06 21:15:34,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:15:34,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:15:34,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1969 transitions. [2023-11-06 21:15:34,545 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46220657276995303 [2023-11-06 21:15:34,545 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1969 transitions. [2023-11-06 21:15:34,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1969 transitions. [2023-11-06 21:15:34,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:15:34,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1969 transitions. [2023-11-06 21:15:34,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 328.1666666666667) internal successors, (1969), 6 states have internal predecessors, (1969), 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 21:15:34,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 710.0) internal successors, (4970), 7 states have internal predecessors, (4970), 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 21:15:34,565 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 710.0) internal successors, (4970), 7 states have internal predecessors, (4970), 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 21:15:34,565 INFO L175 Difference]: Start difference. First operand has 90 places, 93 transitions, 350 flow. Second operand 6 states and 1969 transitions. [2023-11-06 21:15:34,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 163 transitions, 862 flow [2023-11-06 21:15:34,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 163 transitions, 862 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:15:34,602 INFO L231 Difference]: Finished difference. Result has 100 places, 118 transitions, 638 flow [2023-11-06 21:15:34,602 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=710, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=638, PETRI_PLACES=100, PETRI_TRANSITIONS=118} [2023-11-06 21:15:34,605 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -6 predicate places. [2023-11-06 21:15:34,605 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 118 transitions, 638 flow [2023-11-06 21:15:34,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 315.6666666666667) internal successors, (1894), 6 states have internal predecessors, (1894), 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 21:15:34,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:15:34,606 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 21:15:34,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 21:15:34,607 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-06 21:15:34,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:34,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1841820332, now seen corresponding path program 1 times [2023-11-06 21:15:34,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:15:34,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971568003] [2023-11-06 21:15:34,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:15:34,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:15:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:34,763 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 21:15:34,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:15:34,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971568003] [2023-11-06 21:15:34,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971568003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:15:34,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:15:34,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:15:34,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134528769] [2023-11-06 21:15:34,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:15:34,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:15:34,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:15:34,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:15:34,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:15:34,977 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 710 [2023-11-06 21:15:34,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 118 transitions, 638 flow. Second operand has 5 states, 5 states have (on average 314.4) internal successors, (1572), 5 states have internal predecessors, (1572), 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 21:15:34,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:15:34,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 710 [2023-11-06 21:15:34,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:15:36,599 INFO L124 PetriNetUnfolderBase]: 3941/8191 cut-off events. [2023-11-06 21:15:36,599 INFO L125 PetriNetUnfolderBase]: For 11685/12067 co-relation queries the response was YES. [2023-11-06 21:15:36,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20394 conditions, 8191 events. 3941/8191 cut-off events. For 11685/12067 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 68752 event pairs, 1734 based on Foata normal form. 111/6695 useless extension candidates. Maximal degree in co-relation 20375. Up to 4806 conditions per place. [2023-11-06 21:15:36,708 INFO L140 encePairwiseOnDemand]: 700/710 looper letters, 88 selfloop transitions, 12 changer transitions 0/146 dead transitions. [2023-11-06 21:15:36,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 146 transitions, 905 flow [2023-11-06 21:15:36,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:15:36,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:15:36,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1941 transitions. [2023-11-06 21:15:36,720 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4556338028169014 [2023-11-06 21:15:36,720 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1941 transitions. [2023-11-06 21:15:36,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1941 transitions. [2023-11-06 21:15:36,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:15:36,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1941 transitions. [2023-11-06 21:15:36,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 323.5) internal successors, (1941), 6 states have internal predecessors, (1941), 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 21:15:36,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 710.0) internal successors, (4970), 7 states have internal predecessors, (4970), 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 21:15:36,741 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 710.0) internal successors, (4970), 7 states have internal predecessors, (4970), 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 21:15:36,743 INFO L175 Difference]: Start difference. First operand has 100 places, 118 transitions, 638 flow. Second operand 6 states and 1941 transitions. [2023-11-06 21:15:36,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 146 transitions, 905 flow [2023-11-06 21:15:36,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 146 transitions, 865 flow, removed 20 selfloop flow, removed 0 redundant places. [2023-11-06 21:15:36,783 INFO L231 Difference]: Finished difference. Result has 107 places, 120 transitions, 646 flow [2023-11-06 21:15:36,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=710, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=646, PETRI_PLACES=107, PETRI_TRANSITIONS=120} [2023-11-06 21:15:36,785 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 1 predicate places. [2023-11-06 21:15:36,785 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 120 transitions, 646 flow [2023-11-06 21:15:36,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 314.4) internal successors, (1572), 5 states have internal predecessors, (1572), 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 21:15:36,803 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:15:36,803 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] [2023-11-06 21:15:36,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 21:15:36,804 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-06 21:15:36,804 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:36,805 INFO L85 PathProgramCache]: Analyzing trace with hash 340443071, now seen corresponding path program 1 times [2023-11-06 21:15:36,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:15:36,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254937075] [2023-11-06 21:15:36,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:15:36,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:15:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:36,880 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 21:15:36,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:15:36,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254937075] [2023-11-06 21:15:36,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254937075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:15:36,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:15:36,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:15:36,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104371449] [2023-11-06 21:15:36,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:15:36,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:15:36,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:15:36,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:15:36,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:15:36,892 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 710 [2023-11-06 21:15:36,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 120 transitions, 646 flow. Second operand has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 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 21:15:36,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:15:36,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 710 [2023-11-06 21:15:36,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:15:38,762 INFO L124 PetriNetUnfolderBase]: 5200/9408 cut-off events. [2023-11-06 21:15:38,762 INFO L125 PetriNetUnfolderBase]: For 16658/17701 co-relation queries the response was YES. [2023-11-06 21:15:38,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26617 conditions, 9408 events. 5200/9408 cut-off events. For 16658/17701 co-relation queries the response was YES. Maximal size of possible extension queue 448. Compared 70352 event pairs, 487 based on Foata normal form. 109/8162 useless extension candidates. Maximal degree in co-relation 26595. Up to 5724 conditions per place. [2023-11-06 21:15:38,854 INFO L140 encePairwiseOnDemand]: 707/710 looper letters, 86 selfloop transitions, 31 changer transitions 0/163 dead transitions. [2023-11-06 21:15:38,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 163 transitions, 1168 flow [2023-11-06 21:15:38,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:15:38,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:15:38,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1049 transitions. [2023-11-06 21:15:38,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4924882629107981 [2023-11-06 21:15:38,859 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1049 transitions. [2023-11-06 21:15:38,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1049 transitions. [2023-11-06 21:15:38,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:15:38,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1049 transitions. [2023-11-06 21:15:38,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 349.6666666666667) internal successors, (1049), 3 states have internal predecessors, (1049), 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 21:15:38,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 710.0) internal successors, (2840), 4 states have internal predecessors, (2840), 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 21:15:38,868 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 710.0) internal successors, (2840), 4 states have internal predecessors, (2840), 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 21:15:38,868 INFO L175 Difference]: Start difference. First operand has 107 places, 120 transitions, 646 flow. Second operand 3 states and 1049 transitions. [2023-11-06 21:15:38,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 163 transitions, 1168 flow [2023-11-06 21:15:38,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 163 transitions, 1150 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 21:15:38,928 INFO L231 Difference]: Finished difference. Result has 106 places, 145 transitions, 1013 flow [2023-11-06 21:15:38,928 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=710, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1013, PETRI_PLACES=106, PETRI_TRANSITIONS=145} [2023-11-06 21:15:38,931 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 0 predicate places. [2023-11-06 21:15:38,931 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 145 transitions, 1013 flow [2023-11-06 21:15:38,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 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 21:15:38,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:15:38,932 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 21:15:38,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 21:15:38,932 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-06 21:15:38,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:38,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1912833319, now seen corresponding path program 1 times [2023-11-06 21:15:38,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:15:38,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198416638] [2023-11-06 21:15:38,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:15:38,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:15:39,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:39,911 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 21:15:39,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:15:39,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198416638] [2023-11-06 21:15:39,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198416638] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:15:39,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:15:39,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 21:15:39,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175733852] [2023-11-06 21:15:39,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:15:39,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 21:15:39,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:15:39,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 21:15:39,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-06 21:15:41,221 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 710 [2023-11-06 21:15:41,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 145 transitions, 1013 flow. Second operand has 11 states, 11 states have (on average 300.72727272727275) internal successors, (3308), 11 states have internal predecessors, (3308), 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 21:15:41,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:15:41,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 710 [2023-11-06 21:15:41,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:15:44,557 INFO L124 PetriNetUnfolderBase]: 8208/12908 cut-off events. [2023-11-06 21:15:44,557 INFO L125 PetriNetUnfolderBase]: For 26161/27988 co-relation queries the response was YES. [2023-11-06 21:15:44,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39553 conditions, 12908 events. 8208/12908 cut-off events. For 26161/27988 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 88190 event pairs, 974 based on Foata normal form. 646/11419 useless extension candidates. Maximal degree in co-relation 39531. Up to 3670 conditions per place. [2023-11-06 21:15:44,676 INFO L140 encePairwiseOnDemand]: 703/710 looper letters, 188 selfloop transitions, 11 changer transitions 0/236 dead transitions. [2023-11-06 21:15:44,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 236 transitions, 1895 flow [2023-11-06 21:15:44,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 21:15:44,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 21:15:44,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2480 transitions. [2023-11-06 21:15:44,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43661971830985913 [2023-11-06 21:15:44,687 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2480 transitions. [2023-11-06 21:15:44,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2480 transitions. [2023-11-06 21:15:44,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:15:44,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2480 transitions. [2023-11-06 21:15:44,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 310.0) internal successors, (2480), 8 states have internal predecessors, (2480), 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 21:15:44,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 710.0) internal successors, (6390), 9 states have internal predecessors, (6390), 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 21:15:44,707 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 710.0) internal successors, (6390), 9 states have internal predecessors, (6390), 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 21:15:44,707 INFO L175 Difference]: Start difference. First operand has 106 places, 145 transitions, 1013 flow. Second operand 8 states and 2480 transitions. [2023-11-06 21:15:44,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 236 transitions, 1895 flow [2023-11-06 21:15:44,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 236 transitions, 1882 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:15:44,874 INFO L231 Difference]: Finished difference. Result has 111 places, 144 transitions, 1018 flow [2023-11-06 21:15:44,874 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=710, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1018, PETRI_PLACES=111, PETRI_TRANSITIONS=144} [2023-11-06 21:15:44,875 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 5 predicate places. [2023-11-06 21:15:44,875 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 144 transitions, 1018 flow [2023-11-06 21:15:44,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 300.72727272727275) internal successors, (3308), 11 states have internal predecessors, (3308), 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 21:15:44,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:15:44,878 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:15:44,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 21:15:44,878 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-06 21:15:44,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:44,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1631541140, now seen corresponding path program 1 times [2023-11-06 21:15:44,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:15:44,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764500433] [2023-11-06 21:15:44,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:15:44,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:15:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:45,417 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 21:15:45,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:15:45,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764500433] [2023-11-06 21:15:45,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764500433] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:15:45,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:15:45,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:15:45,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214641240] [2023-11-06 21:15:45,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:15:45,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:15:45,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:15:45,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:15:45,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:15:45,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 710 [2023-11-06 21:15:45,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 144 transitions, 1018 flow. Second operand has 6 states, 6 states have (on average 317.0) internal successors, (1902), 6 states have internal predecessors, (1902), 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 21:15:45,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:15:45,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 710 [2023-11-06 21:15:45,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:15:48,404 INFO L124 PetriNetUnfolderBase]: 5241/9143 cut-off events. [2023-11-06 21:15:48,404 INFO L125 PetriNetUnfolderBase]: For 25563/26590 co-relation queries the response was YES. [2023-11-06 21:15:48,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28708 conditions, 9143 events. 5241/9143 cut-off events. For 25563/26590 co-relation queries the response was YES. Maximal size of possible extension queue 441. Compared 66378 event pairs, 1663 based on Foata normal form. 159/7664 useless extension candidates. Maximal degree in co-relation 28686. Up to 5911 conditions per place. [2023-11-06 21:15:48,482 INFO L140 encePairwiseOnDemand]: 703/710 looper letters, 133 selfloop transitions, 17 changer transitions 0/190 dead transitions. [2023-11-06 21:15:48,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 190 transitions, 1547 flow [2023-11-06 21:15:48,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:15:48,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:15:48,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1955 transitions. [2023-11-06 21:15:48,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45892018779342725 [2023-11-06 21:15:48,491 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1955 transitions. [2023-11-06 21:15:48,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1955 transitions. [2023-11-06 21:15:48,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:15:48,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1955 transitions. [2023-11-06 21:15:48,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 325.8333333333333) internal successors, (1955), 6 states have internal predecessors, (1955), 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 21:15:48,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 710.0) internal successors, (4970), 7 states have internal predecessors, (4970), 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 21:15:48,509 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 710.0) internal successors, (4970), 7 states have internal predecessors, (4970), 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 21:15:48,509 INFO L175 Difference]: Start difference. First operand has 111 places, 144 transitions, 1018 flow. Second operand 6 states and 1955 transitions. [2023-11-06 21:15:48,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 190 transitions, 1547 flow [2023-11-06 21:15:48,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 190 transitions, 1527 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 21:15:48,578 INFO L231 Difference]: Finished difference. Result has 115 places, 160 transitions, 1226 flow [2023-11-06 21:15:48,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=710, PETRI_DIFFERENCE_MINUEND_FLOW=998, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1226, PETRI_PLACES=115, PETRI_TRANSITIONS=160} [2023-11-06 21:15:48,579 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 9 predicate places. [2023-11-06 21:15:48,579 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 160 transitions, 1226 flow [2023-11-06 21:15:48,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 317.0) internal successors, (1902), 6 states have internal predecessors, (1902), 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 21:15:48,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:15:48,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:15:48,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 21:15:48,581 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-06 21:15:48,581 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:48,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1154288455, now seen corresponding path program 1 times [2023-11-06 21:15:48,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:15:48,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326249985] [2023-11-06 21:15:48,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:15:48,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:15:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:49,445 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 21:15:49,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:15:49,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326249985] [2023-11-06 21:15:49,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326249985] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:15:49,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:15:49,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 21:15:49,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745567451] [2023-11-06 21:15:49,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:15:49,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 21:15:49,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:15:49,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 21:15:49,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-06 21:15:50,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 710 [2023-11-06 21:15:50,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 160 transitions, 1226 flow. Second operand has 10 states, 10 states have (on average 298.7) internal successors, (2987), 10 states have internal predecessors, (2987), 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 21:15:50,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:15:50,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 710 [2023-11-06 21:15:50,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:15:55,929 INFO L124 PetriNetUnfolderBase]: 11055/19736 cut-off events. [2023-11-06 21:15:55,929 INFO L125 PetriNetUnfolderBase]: For 56105/58308 co-relation queries the response was YES. [2023-11-06 21:15:56,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61490 conditions, 19736 events. 11055/19736 cut-off events. For 56105/58308 co-relation queries the response was YES. Maximal size of possible extension queue 678. Compared 154114 event pairs, 2105 based on Foata normal form. 134/16965 useless extension candidates. Maximal degree in co-relation 61464. Up to 6092 conditions per place. [2023-11-06 21:15:56,279 INFO L140 encePairwiseOnDemand]: 697/710 looper letters, 241 selfloop transitions, 73 changer transitions 0/357 dead transitions. [2023-11-06 21:15:56,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 357 transitions, 3415 flow [2023-11-06 21:15:56,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 21:15:56,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 21:15:56,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3688 transitions. [2023-11-06 21:15:56,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4328638497652582 [2023-11-06 21:15:56,293 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3688 transitions. [2023-11-06 21:15:56,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3688 transitions. [2023-11-06 21:15:56,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:15:56,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3688 transitions. [2023-11-06 21:15:56,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 307.3333333333333) internal successors, (3688), 12 states have internal predecessors, (3688), 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 21:15:56,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 710.0) internal successors, (9230), 13 states have internal predecessors, (9230), 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 21:15:56,323 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 710.0) internal successors, (9230), 13 states have internal predecessors, (9230), 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 21:15:56,323 INFO L175 Difference]: Start difference. First operand has 115 places, 160 transitions, 1226 flow. Second operand 12 states and 3688 transitions. [2023-11-06 21:15:56,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 357 transitions, 3415 flow [2023-11-06 21:15:56,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 357 transitions, 3399 flow, removed 8 selfloop flow, removed 0 redundant places. [2023-11-06 21:15:56,708 INFO L231 Difference]: Finished difference. Result has 132 places, 221 transitions, 2184 flow [2023-11-06 21:15:56,709 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=710, PETRI_DIFFERENCE_MINUEND_FLOW=1210, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2184, PETRI_PLACES=132, PETRI_TRANSITIONS=221} [2023-11-06 21:15:56,709 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 26 predicate places. [2023-11-06 21:15:56,709 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 221 transitions, 2184 flow [2023-11-06 21:15:56,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 298.7) internal successors, (2987), 10 states have internal predecessors, (2987), 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 21:15:56,710 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:15:56,710 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:15:56,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 21:15:56,711 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-06 21:15:56,711 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:56,711 INFO L85 PathProgramCache]: Analyzing trace with hash -752310411, now seen corresponding path program 2 times [2023-11-06 21:15:56,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:15:56,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729583796] [2023-11-06 21:15:56,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:15:56,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:15:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:57,511 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 21:15:57,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:15:57,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729583796] [2023-11-06 21:15:57,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729583796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:15:57,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:15:57,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 21:15:57,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764477091] [2023-11-06 21:15:57,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:15:57,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 21:15:57,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:15:57,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 21:15:57,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 21:15:58,545 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 710 [2023-11-06 21:15:58,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 221 transitions, 2184 flow. Second operand has 9 states, 9 states have (on average 299.77777777777777) internal successors, (2698), 9 states have internal predecessors, (2698), 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 21:15:58,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:15:58,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 710 [2023-11-06 21:15:58,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:16:04,538 INFO L124 PetriNetUnfolderBase]: 12887/23746 cut-off events. [2023-11-06 21:16:04,538 INFO L125 PetriNetUnfolderBase]: For 107715/110655 co-relation queries the response was YES. [2023-11-06 21:16:04,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85603 conditions, 23746 events. 12887/23746 cut-off events. For 107715/110655 co-relation queries the response was YES. Maximal size of possible extension queue 868. Compared 199861 event pairs, 1814 based on Foata normal form. 282/20504 useless extension candidates. Maximal degree in co-relation 85570. Up to 9579 conditions per place. [2023-11-06 21:16:04,817 INFO L140 encePairwiseOnDemand]: 698/710 looper letters, 152 selfloop transitions, 168 changer transitions 0/368 dead transitions. [2023-11-06 21:16:04,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 368 transitions, 4068 flow [2023-11-06 21:16:04,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 21:16:04,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 21:16:04,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3384 transitions. [2023-11-06 21:16:04,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43329065300896286 [2023-11-06 21:16:04,829 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3384 transitions. [2023-11-06 21:16:04,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3384 transitions. [2023-11-06 21:16:04,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:16:04,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3384 transitions. [2023-11-06 21:16:04,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 307.6363636363636) internal successors, (3384), 11 states have internal predecessors, (3384), 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 21:16:04,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 710.0) internal successors, (8520), 12 states have internal predecessors, (8520), 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 21:16:04,854 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 710.0) internal successors, (8520), 12 states have internal predecessors, (8520), 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 21:16:04,854 INFO L175 Difference]: Start difference. First operand has 132 places, 221 transitions, 2184 flow. Second operand 11 states and 3384 transitions. [2023-11-06 21:16:04,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 368 transitions, 4068 flow [2023-11-06 21:16:05,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 368 transitions, 4041 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-11-06 21:16:05,699 INFO L231 Difference]: Finished difference. Result has 142 places, 293 transitions, 3731 flow [2023-11-06 21:16:05,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=710, PETRI_DIFFERENCE_MINUEND_FLOW=2157, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3731, PETRI_PLACES=142, PETRI_TRANSITIONS=293} [2023-11-06 21:16:05,701 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 36 predicate places. [2023-11-06 21:16:05,701 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 293 transitions, 3731 flow [2023-11-06 21:16:05,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 299.77777777777777) internal successors, (2698), 9 states have internal predecessors, (2698), 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 21:16:05,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:16:05,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:16:05,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 21:16:05,702 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-06 21:16:05,702 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:05,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1652314659, now seen corresponding path program 1 times [2023-11-06 21:16:05,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:05,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980957637] [2023-11-06 21:16:05,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:05,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:06,060 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 21:16:06,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:16:06,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980957637] [2023-11-06 21:16:06,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980957637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:16:06,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:16:06,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:16:06,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006855860] [2023-11-06 21:16:06,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:16:06,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:16:06,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:16:06,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:16:06,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:16:06,487 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 710 [2023-11-06 21:16:06,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 293 transitions, 3731 flow. Second operand has 6 states, 6 states have (on average 316.0) internal successors, (1896), 6 states have internal predecessors, (1896), 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 21:16:06,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:16:06,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 710 [2023-11-06 21:16:06,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:16:13,774 INFO L124 PetriNetUnfolderBase]: 18740/30659 cut-off events. [2023-11-06 21:16:13,774 INFO L125 PetriNetUnfolderBase]: For 233178/236827 co-relation queries the response was YES. [2023-11-06 21:16:14,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128866 conditions, 30659 events. 18740/30659 cut-off events. For 233178/236827 co-relation queries the response was YES. Maximal size of possible extension queue 896. Compared 230877 event pairs, 4841 based on Foata normal form. 901/26966 useless extension candidates. Maximal degree in co-relation 128829. Up to 18987 conditions per place. [2023-11-06 21:16:14,165 INFO L140 encePairwiseOnDemand]: 703/710 looper letters, 292 selfloop transitions, 111 changer transitions 0/454 dead transitions. [2023-11-06 21:16:14,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 454 transitions, 6456 flow [2023-11-06 21:16:14,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:16:14,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:16:14,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1967 transitions. [2023-11-06 21:16:14,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46173708920187795 [2023-11-06 21:16:14,173 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1967 transitions. [2023-11-06 21:16:14,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1967 transitions. [2023-11-06 21:16:14,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:16:14,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1967 transitions. [2023-11-06 21:16:14,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 327.8333333333333) internal successors, (1967), 6 states have internal predecessors, (1967), 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 21:16:14,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 710.0) internal successors, (4970), 7 states have internal predecessors, (4970), 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 21:16:14,189 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 710.0) internal successors, (4970), 7 states have internal predecessors, (4970), 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 21:16:14,190 INFO L175 Difference]: Start difference. First operand has 142 places, 293 transitions, 3731 flow. Second operand 6 states and 1967 transitions. [2023-11-06 21:16:14,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 454 transitions, 6456 flow [2023-11-06 21:16:17,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 454 transitions, 6097 flow, removed 172 selfloop flow, removed 4 redundant places. [2023-11-06 21:16:17,098 INFO L231 Difference]: Finished difference. Result has 147 places, 398 transitions, 5501 flow [2023-11-06 21:16:17,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=710, PETRI_DIFFERENCE_MINUEND_FLOW=3540, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5501, PETRI_PLACES=147, PETRI_TRANSITIONS=398} [2023-11-06 21:16:17,099 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 41 predicate places. [2023-11-06 21:16:17,100 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 398 transitions, 5501 flow [2023-11-06 21:16:17,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 316.0) internal successors, (1896), 6 states have internal predecessors, (1896), 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 21:16:17,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:16:17,101 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 21:16:17,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 21:16:17,101 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-06 21:16:17,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:17,101 INFO L85 PathProgramCache]: Analyzing trace with hash 2064037759, now seen corresponding path program 3 times [2023-11-06 21:16:17,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:17,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046973444] [2023-11-06 21:16:17,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:17,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:16:17,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:16:17,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046973444] [2023-11-06 21:16:17,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046973444] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:16:17,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897830326] [2023-11-06 21:16:17,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 21:16:17,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:16:17,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:17,304 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:16:17,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 21:16:17,642 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 21:16:17,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:16:17,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 21:16:17,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:17,824 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:16:17,825 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:16:17,920 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:16:17,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897830326] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:16:17,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:16:17,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-11-06 21:16:17,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645442154] [2023-11-06 21:16:17,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:16:17,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 21:16:17,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:16:17,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 21:16:17,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-06 21:16:18,630 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 710 [2023-11-06 21:16:18,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 398 transitions, 5501 flow. Second operand has 14 states, 14 states have (on average 307.0) internal successors, (4298), 14 states have internal predecessors, (4298), 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 21:16:18,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:16:18,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 710 [2023-11-06 21:16:18,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:16:29,261 INFO L124 PetriNetUnfolderBase]: 24987/47963 cut-off events. [2023-11-06 21:16:29,261 INFO L125 PetriNetUnfolderBase]: For 412569/420203 co-relation queries the response was YES. [2023-11-06 21:16:29,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185068 conditions, 47963 events. 24987/47963 cut-off events. For 412569/420203 co-relation queries the response was YES. Maximal size of possible extension queue 1605. Compared 466547 event pairs, 5529 based on Foata normal form. 5480/47036 useless extension candidates. Maximal degree in co-relation 185027. Up to 17797 conditions per place. [2023-11-06 21:16:30,023 INFO L140 encePairwiseOnDemand]: 700/710 looper letters, 417 selfloop transitions, 223 changer transitions 0/696 dead transitions. [2023-11-06 21:16:30,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 696 transitions, 10930 flow [2023-11-06 21:16:30,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 21:16:30,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 21:16:30,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2854 transitions. [2023-11-06 21:16:30,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4466353677621283 [2023-11-06 21:16:30,035 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2854 transitions. [2023-11-06 21:16:30,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2854 transitions. [2023-11-06 21:16:30,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:16:30,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2854 transitions. [2023-11-06 21:16:30,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 317.1111111111111) internal successors, (2854), 9 states have internal predecessors, (2854), 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 21:16:30,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 710.0) internal successors, (7100), 10 states have internal predecessors, (7100), 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 21:16:30,058 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 710.0) internal successors, (7100), 10 states have internal predecessors, (7100), 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 21:16:30,058 INFO L175 Difference]: Start difference. First operand has 147 places, 398 transitions, 5501 flow. Second operand 9 states and 2854 transitions. [2023-11-06 21:16:30,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 696 transitions, 10930 flow [2023-11-06 21:16:33,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 696 transitions, 10514 flow, removed 208 selfloop flow, removed 0 redundant places. [2023-11-06 21:16:33,304 INFO L231 Difference]: Finished difference. Result has 160 places, 607 transitions, 10079 flow [2023-11-06 21:16:33,304 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=710, PETRI_DIFFERENCE_MINUEND_FLOW=5205, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10079, PETRI_PLACES=160, PETRI_TRANSITIONS=607} [2023-11-06 21:16:33,305 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 54 predicate places. [2023-11-06 21:16:33,305 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 607 transitions, 10079 flow [2023-11-06 21:16:33,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 307.0) internal successors, (4298), 14 states have internal predecessors, (4298), 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 21:16:33,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:16:33,306 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:16:33,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:33,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-06 21:16:33,507 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-06 21:16:33,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:33,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1569883154, now seen corresponding path program 4 times [2023-11-06 21:16:33,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:33,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866987072] [2023-11-06 21:16:33,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:33,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:35,146 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-06 21:16:35,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:16:35,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866987072] [2023-11-06 21:16:35,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866987072] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:16:35,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698662415] [2023-11-06 21:16:35,147 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 21:16:35,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:16:35,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:35,149 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:16:35,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ec1c55-1002-4ed2-a6ba-79b22884fab8/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 21:17:08,797 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 21:17:08,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:17:08,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-06 21:17:08,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:17:09,225 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 21:17:09,284 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-06 21:17:09,351 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 21:17:09,351 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-06 21:17:09,435 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 21:17:09,435 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-06 21:17:09,764 INFO L322 Elim1Store]: treesize reduction 200, result has 30.8 percent of original size [2023-11-06 21:17:09,764 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 14 case distinctions, treesize of input 167 treesize of output 129 [2023-11-06 21:17:09,901 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-06 21:17:09,902 INFO L327 TraceCheckSpWp]: Computing backward predicates...