./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa30dc84-494e-4dec-8ac0-e1b331961cbc/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa30dc84-494e-4dec-8ac0-e1b331961cbc/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa30dc84-494e-4dec-8ac0-e1b331961cbc/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa30dc84-494e-4dec-8ac0-e1b331961cbc/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa30dc84-494e-4dec-8ac0-e1b331961cbc/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa30dc84-494e-4dec-8ac0-e1b331961cbc/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebdf94362dc31684fc6d7640230484df679da941d20fe978f9edfe1d75c48a51 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:47:25,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:47:26,054 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa30dc84-494e-4dec-8ac0-e1b331961cbc/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:47:26,059 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:47:26,060 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:47:26,113 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:47:26,114 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:47:26,115 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:47:26,116 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:47:26,122 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:47:26,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:47:26,123 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:47:26,124 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:47:26,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:47:26,126 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:47:26,127 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:47:26,127 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:47:26,128 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:47:26,128 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:47:26,128 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:47:26,129 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:47:26,130 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:47:26,130 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:47:26,131 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:47:26,131 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:47:26,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:47:26,132 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:47:26,133 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:47:26,133 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:47:26,134 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:47:26,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:47:26,136 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:47:26,136 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:47:26,136 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:47:26,136 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:47:26,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:47:26,137 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:47:26,137 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:47:26,138 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:47:26,138 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:47:26,138 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:47:26,139 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_aa30dc84-494e-4dec-8ac0-e1b331961cbc/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa30dc84-494e-4dec-8ac0-e1b331961cbc/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebdf94362dc31684fc6d7640230484df679da941d20fe978f9edfe1d75c48a51 [2023-11-26 10:47:26,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:47:26,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:47:26,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:47:26,568 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:47:26,569 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:47:26,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa30dc84-494e-4dec-8ac0-e1b331961cbc/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c [2023-11-26 10:47:29,769 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:47:30,088 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:47:30,088 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa30dc84-494e-4dec-8ac0-e1b331961cbc/sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c [2023-11-26 10:47:30,097 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa30dc84-494e-4dec-8ac0-e1b331961cbc/bin/uautomizer-verify-VRDe98Ueme/data/e502ccd44/f206848a15ef44f299b840d269a197df/FLAG33f741602 [2023-11-26 10:47:30,113 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa30dc84-494e-4dec-8ac0-e1b331961cbc/bin/uautomizer-verify-VRDe98Ueme/data/e502ccd44/f206848a15ef44f299b840d269a197df [2023-11-26 10:47:30,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:47:30,117 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:47:30,119 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:47:30,119 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:47:30,125 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:47:30,126 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:47:30" (1/1) ... [2023-11-26 10:47:30,127 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3067900f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:30, skipping insertion in model container [2023-11-26 10:47:30,127 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:47:30" (1/1) ... [2023-11-26 10:47:30,154 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:47:30,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:47:30,411 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:47:30,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:47:30,456 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:47:30,456 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:47:30,465 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:47:30,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:30 WrapperNode [2023-11-26 10:47:30,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:47:30,467 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:47:30,467 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:47:30,467 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:47:30,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:30" (1/1) ... [2023-11-26 10:47:30,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:30" (1/1) ... [2023-11-26 10:47:30,529 INFO L138 Inliner]: procedures = 26, calls = 41, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 211 [2023-11-26 10:47:30,530 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:47:30,531 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:47:30,531 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:47:30,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:47:30,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:30" (1/1) ... [2023-11-26 10:47:30,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:30" (1/1) ... [2023-11-26 10:47:30,550 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:30" (1/1) ... [2023-11-26 10:47:30,550 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:30" (1/1) ... [2023-11-26 10:47:30,586 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:30" (1/1) ... [2023-11-26 10:47:30,590 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:30" (1/1) ... [2023-11-26 10:47:30,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:30" (1/1) ... [2023-11-26 10:47:30,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:30" (1/1) ... [2023-11-26 10:47:30,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:47:30,610 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:47:30,610 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:47:30,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:47:30,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:30" (1/1) ... [2023-11-26 10:47:30,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:47:30,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa30dc84-494e-4dec-8ac0-e1b331961cbc/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:47:30,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa30dc84-494e-4dec-8ac0-e1b331961cbc/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:47:30,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa30dc84-494e-4dec-8ac0-e1b331961cbc/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:47:30,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:47:30,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:47:30,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:47:30,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:47:30,684 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 10:47:30,684 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 10:47:30,684 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 10:47:30,684 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 10:47:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:47:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 10:47:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 10:47:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 10:47:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:47:30,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:47:30,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:47:30,688 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 10:47:30,807 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:47:30,809 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:47:31,306 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:47:31,547 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:47:31,547 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-26 10:47:31,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:31 BoogieIcfgContainer [2023-11-26 10:47:31,549 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:47:31,552 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:47:31,552 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:47:31,556 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:47:31,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:47:30" (1/3) ... [2023-11-26 10:47:31,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73edb806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:47:31, skipping insertion in model container [2023-11-26 10:47:31,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:30" (2/3) ... [2023-11-26 10:47:31,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73edb806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:47:31, skipping insertion in model container [2023-11-26 10:47:31,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:31" (3/3) ... [2023-11-26 10:47:31,560 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-counter-queue.wvr.c [2023-11-26 10:47:31,571 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:47:31,583 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:47:31,584 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-11-26 10:47:31,584 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:47:31,673 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-26 10:47:31,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 172 places, 174 transitions, 362 flow [2023-11-26 10:47:31,856 INFO L124 PetriNetUnfolderBase]: 9/172 cut-off events. [2023-11-26 10:47:31,856 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 10:47:31,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 172 events. 9/172 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 175 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 110. Up to 2 conditions per place. [2023-11-26 10:47:31,865 INFO L82 GeneralOperation]: Start removeDead. Operand has 172 places, 174 transitions, 362 flow [2023-11-26 10:47:31,874 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 151 transitions, 314 flow [2023-11-26 10:47:31,888 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:47:31,898 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2cfac8c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:47:31,898 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2023-11-26 10:47:31,906 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:47:31,907 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-26 10:47:31,907 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:47:31,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:31,908 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:31,909 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-26 10:47:31,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:31,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1288233506, now seen corresponding path program 1 times [2023-11-26 10:47:31,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:31,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814868102] [2023-11-26 10:47:31,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:31,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:32,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:32,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:32,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814868102] [2023-11-26 10:47:32,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814868102] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:32,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:32,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:32,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719596672] [2023-11-26 10:47:32,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:32,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:32,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:32,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:32,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:32,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 174 [2023-11-26 10:47:32,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 151 transitions, 314 flow. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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) [2023-11-26 10:47:32,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:32,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 174 [2023-11-26 10:47:32,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:32,619 INFO L124 PetriNetUnfolderBase]: 26/233 cut-off events. [2023-11-26 10:47:32,620 INFO L125 PetriNetUnfolderBase]: For 20/27 co-relation queries the response was YES. [2023-11-26 10:47:32,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 233 events. 26/233 cut-off events. For 20/27 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 606 event pairs, 15 based on Foata normal form. 3/212 useless extension candidates. Maximal degree in co-relation 171. Up to 53 conditions per place. [2023-11-26 10:47:32,627 INFO L140 encePairwiseOnDemand]: 158/174 looper letters, 14 selfloop transitions, 2 changer transitions 2/137 dead transitions. [2023-11-26 10:47:32,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 137 transitions, 318 flow [2023-11-26 10:47:32,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:32,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:32,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2023-11-26 10:47:32,653 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.867816091954023 [2023-11-26 10:47:32,654 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 453 transitions. [2023-11-26 10:47:32,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 453 transitions. [2023-11-26 10:47:32,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:32,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 453 transitions. [2023-11-26 10:47:32,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 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) [2023-11-26 10:47:32,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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) [2023-11-26 10:47:32,680 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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) [2023-11-26 10:47:32,682 INFO L175 Difference]: Start difference. First operand has 150 places, 151 transitions, 314 flow. Second operand 3 states and 453 transitions. [2023-11-26 10:47:32,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 137 transitions, 318 flow [2023-11-26 10:47:32,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 137 transitions, 310 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 10:47:32,694 INFO L231 Difference]: Finished difference. Result has 139 places, 135 transitions, 278 flow [2023-11-26 10:47:32,697 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=139, PETRI_TRANSITIONS=135} [2023-11-26 10:47:32,701 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -11 predicate places. [2023-11-26 10:47:32,702 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 135 transitions, 278 flow [2023-11-26 10:47:32,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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) [2023-11-26 10:47:32,703 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:32,703 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] [2023-11-26 10:47:32,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:47:32,704 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-26 10:47:32,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:32,706 INFO L85 PathProgramCache]: Analyzing trace with hash 473953074, now seen corresponding path program 1 times [2023-11-26 10:47:32,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:32,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336926589] [2023-11-26 10:47:32,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:32,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:32,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:32,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:32,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336926589] [2023-11-26 10:47:32,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336926589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:32,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:32,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:32,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327774544] [2023-11-26 10:47:32,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:32,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:32,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:32,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:32,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:32,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 174 [2023-11-26 10:47:32,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 135 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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) [2023-11-26 10:47:32,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:32,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 174 [2023-11-26 10:47:32,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:32,897 INFO L124 PetriNetUnfolderBase]: 37/254 cut-off events. [2023-11-26 10:47:32,897 INFO L125 PetriNetUnfolderBase]: For 7/22 co-relation queries the response was YES. [2023-11-26 10:47:32,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 254 events. 37/254 cut-off events. For 7/22 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 790 event pairs, 24 based on Foata normal form. 0/234 useless extension candidates. Maximal degree in co-relation 311. Up to 72 conditions per place. [2023-11-26 10:47:32,901 INFO L140 encePairwiseOnDemand]: 170/174 looper letters, 14 selfloop transitions, 1 changer transitions 0/132 dead transitions. [2023-11-26 10:47:32,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 132 transitions, 302 flow [2023-11-26 10:47:32,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:32,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:32,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 441 transitions. [2023-11-26 10:47:32,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8448275862068966 [2023-11-26 10:47:32,904 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 441 transitions. [2023-11-26 10:47:32,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 441 transitions. [2023-11-26 10:47:32,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:32,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 441 transitions. [2023-11-26 10:47:32,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 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) [2023-11-26 10:47:32,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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) [2023-11-26 10:47:32,909 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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) [2023-11-26 10:47:32,909 INFO L175 Difference]: Start difference. First operand has 139 places, 135 transitions, 278 flow. Second operand 3 states and 441 transitions. [2023-11-26 10:47:32,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 132 transitions, 302 flow [2023-11-26 10:47:32,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 132 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:47:32,914 INFO L231 Difference]: Finished difference. Result has 134 places, 132 transitions, 270 flow [2023-11-26 10:47:32,915 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=270, PETRI_PLACES=134, PETRI_TRANSITIONS=132} [2023-11-26 10:47:32,916 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -16 predicate places. [2023-11-26 10:47:32,916 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 132 transitions, 270 flow [2023-11-26 10:47:32,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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) [2023-11-26 10:47:32,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:32,917 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:32,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:47:32,918 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-26 10:47:32,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:32,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1780923950, now seen corresponding path program 1 times [2023-11-26 10:47:32,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:32,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330967418] [2023-11-26 10:47:32,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:32,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:33,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:33,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:33,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330967418] [2023-11-26 10:47:33,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330967418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:33,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:33,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:47:33,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316790338] [2023-11-26 10:47:33,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:33,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:47:33,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:33,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:47:33,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:47:33,987 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 174 [2023-11-26 10:47:33,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 132 transitions, 270 flow. Second operand has 6 states, 6 states have (on average 130.5) internal successors, (783), 6 states have internal predecessors, (783), 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) [2023-11-26 10:47:33,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:33,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 174 [2023-11-26 10:47:33,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:34,146 INFO L124 PetriNetUnfolderBase]: 105/487 cut-off events. [2023-11-26 10:47:34,146 INFO L125 PetriNetUnfolderBase]: For 8/22 co-relation queries the response was YES. [2023-11-26 10:47:34,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 674 conditions, 487 events. 105/487 cut-off events. For 8/22 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2340 event pairs, 64 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 648. Up to 175 conditions per place. [2023-11-26 10:47:34,154 INFO L140 encePairwiseOnDemand]: 168/174 looper letters, 24 selfloop transitions, 5 changer transitions 0/131 dead transitions. [2023-11-26 10:47:34,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 131 transitions, 326 flow [2023-11-26 10:47:34,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:47:34,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:47:34,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 804 transitions. [2023-11-26 10:47:34,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7701149425287356 [2023-11-26 10:47:34,159 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 804 transitions. [2023-11-26 10:47:34,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 804 transitions. [2023-11-26 10:47:34,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:34,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 804 transitions. [2023-11-26 10:47:34,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2023-11-26 10:47:34,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 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) [2023-11-26 10:47:34,167 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 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) [2023-11-26 10:47:34,167 INFO L175 Difference]: Start difference. First operand has 134 places, 132 transitions, 270 flow. Second operand 6 states and 804 transitions. [2023-11-26 10:47:34,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 131 transitions, 326 flow [2023-11-26 10:47:34,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 131 transitions, 325 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:47:34,173 INFO L231 Difference]: Finished difference. Result has 137 places, 131 transitions, 277 flow [2023-11-26 10:47:34,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=277, PETRI_PLACES=137, PETRI_TRANSITIONS=131} [2023-11-26 10:47:34,176 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -13 predicate places. [2023-11-26 10:47:34,176 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 131 transitions, 277 flow [2023-11-26 10:47:34,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.5) internal successors, (783), 6 states have internal predecessors, (783), 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) [2023-11-26 10:47:34,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:34,178 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:34,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:47:34,180 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-26 10:47:34,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:34,181 INFO L85 PathProgramCache]: Analyzing trace with hash 66744589, now seen corresponding path program 1 times [2023-11-26 10:47:34,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:34,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853523386] [2023-11-26 10:47:34,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:34,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:34,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:34,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:34,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853523386] [2023-11-26 10:47:34,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853523386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:34,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:34,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:34,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459484349] [2023-11-26 10:47:34,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:34,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:34,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:34,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:34,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:34,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 174 [2023-11-26 10:47:34,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 131 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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) [2023-11-26 10:47:34,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:34,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 174 [2023-11-26 10:47:34,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:34,331 INFO L124 PetriNetUnfolderBase]: 21/206 cut-off events. [2023-11-26 10:47:34,331 INFO L125 PetriNetUnfolderBase]: For 8/12 co-relation queries the response was YES. [2023-11-26 10:47:34,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 206 events. 21/206 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 446 event pairs, 8 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 240. Up to 38 conditions per place. [2023-11-26 10:47:34,334 INFO L140 encePairwiseOnDemand]: 171/174 looper letters, 11 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2023-11-26 10:47:34,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 130 transitions, 301 flow [2023-11-26 10:47:34,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:34,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:34,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2023-11-26 10:47:34,337 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8544061302681992 [2023-11-26 10:47:34,337 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2023-11-26 10:47:34,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2023-11-26 10:47:34,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:34,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2023-11-26 10:47:34,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 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) [2023-11-26 10:47:34,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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) [2023-11-26 10:47:34,343 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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) [2023-11-26 10:47:34,343 INFO L175 Difference]: Start difference. First operand has 137 places, 131 transitions, 277 flow. Second operand 3 states and 446 transitions. [2023-11-26 10:47:34,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 130 transitions, 301 flow [2023-11-26 10:47:34,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 130 transitions, 291 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:47:34,348 INFO L231 Difference]: Finished difference. Result has 133 places, 130 transitions, 269 flow [2023-11-26 10:47:34,349 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=269, PETRI_PLACES=133, PETRI_TRANSITIONS=130} [2023-11-26 10:47:34,350 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -17 predicate places. [2023-11-26 10:47:34,350 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 130 transitions, 269 flow [2023-11-26 10:47:34,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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) [2023-11-26 10:47:34,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:34,352 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:34,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:47:34,352 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-26 10:47:34,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:34,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1512066913, now seen corresponding path program 1 times [2023-11-26 10:47:34,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:34,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224688650] [2023-11-26 10:47:34,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:34,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:34,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:34,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:34,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:34,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224688650] [2023-11-26 10:47:34,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224688650] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:34,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:34,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:47:34,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729395348] [2023-11-26 10:47:34,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:34,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:47:34,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:34,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:47:34,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:47:35,188 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 174 [2023-11-26 10:47:35,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 130 transitions, 269 flow. Second operand has 6 states, 6 states have (on average 138.5) internal successors, (831), 6 states have internal predecessors, (831), 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) [2023-11-26 10:47:35,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:35,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 174 [2023-11-26 10:47:35,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:35,433 INFO L124 PetriNetUnfolderBase]: 104/334 cut-off events. [2023-11-26 10:47:35,433 INFO L125 PetriNetUnfolderBase]: For 3/18 co-relation queries the response was YES. [2023-11-26 10:47:35,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 334 events. 104/334 cut-off events. For 3/18 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1116 event pairs, 6 based on Foata normal form. 8/330 useless extension candidates. Maximal degree in co-relation 484. Up to 61 conditions per place. [2023-11-26 10:47:35,437 INFO L140 encePairwiseOnDemand]: 169/174 looper letters, 31 selfloop transitions, 4 changer transitions 0/145 dead transitions. [2023-11-26 10:47:35,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 145 transitions, 369 flow [2023-11-26 10:47:35,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:47:35,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:47:35,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 858 transitions. [2023-11-26 10:47:35,441 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8218390804597702 [2023-11-26 10:47:35,441 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 858 transitions. [2023-11-26 10:47:35,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 858 transitions. [2023-11-26 10:47:35,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:35,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 858 transitions. [2023-11-26 10:47:35,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 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) [2023-11-26 10:47:35,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 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) [2023-11-26 10:47:35,448 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 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) [2023-11-26 10:47:35,449 INFO L175 Difference]: Start difference. First operand has 133 places, 130 transitions, 269 flow. Second operand 6 states and 858 transitions. [2023-11-26 10:47:35,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 145 transitions, 369 flow [2023-11-26 10:47:35,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 145 transitions, 365 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:47:35,453 INFO L231 Difference]: Finished difference. Result has 135 places, 129 transitions, 271 flow [2023-11-26 10:47:35,454 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=271, PETRI_PLACES=135, PETRI_TRANSITIONS=129} [2023-11-26 10:47:35,454 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -15 predicate places. [2023-11-26 10:47:35,455 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 129 transitions, 271 flow [2023-11-26 10:47:35,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.5) internal successors, (831), 6 states have internal predecessors, (831), 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) [2023-11-26 10:47:35,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:35,456 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:35,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:47:35,456 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-26 10:47:35,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:35,457 INFO L85 PathProgramCache]: Analyzing trace with hash 323639571, now seen corresponding path program 1 times [2023-11-26 10:47:35,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:35,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948535327] [2023-11-26 10:47:35,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:35,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:36,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:36,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:36,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948535327] [2023-11-26 10:47:36,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948535327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:36,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:36,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:47:36,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827105423] [2023-11-26 10:47:36,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:36,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:47:36,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:36,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:47:36,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:47:36,232 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 174 [2023-11-26 10:47:36,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 129 transitions, 271 flow. Second operand has 6 states, 6 states have (on average 138.66666666666666) internal successors, (832), 6 states have internal predecessors, (832), 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) [2023-11-26 10:47:36,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:36,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 174 [2023-11-26 10:47:36,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:36,350 INFO L124 PetriNetUnfolderBase]: 36/229 cut-off events. [2023-11-26 10:47:36,350 INFO L125 PetriNetUnfolderBase]: For 7/14 co-relation queries the response was YES. [2023-11-26 10:47:36,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 229 events. 36/229 cut-off events. For 7/14 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 553 event pairs, 8 based on Foata normal form. 4/221 useless extension candidates. Maximal degree in co-relation 283. Up to 39 conditions per place. [2023-11-26 10:47:36,352 INFO L140 encePairwiseOnDemand]: 169/174 looper letters, 23 selfloop transitions, 4 changer transitions 0/136 dead transitions. [2023-11-26 10:47:36,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 136 transitions, 339 flow [2023-11-26 10:47:36,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:47:36,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:47:36,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 850 transitions. [2023-11-26 10:47:36,356 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.814176245210728 [2023-11-26 10:47:36,356 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 850 transitions. [2023-11-26 10:47:36,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 850 transitions. [2023-11-26 10:47:36,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:36,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 850 transitions. [2023-11-26 10:47:36,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 141.66666666666666) internal successors, (850), 6 states have internal predecessors, (850), 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) [2023-11-26 10:47:36,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 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) [2023-11-26 10:47:36,363 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 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) [2023-11-26 10:47:36,364 INFO L175 Difference]: Start difference. First operand has 135 places, 129 transitions, 271 flow. Second operand 6 states and 850 transitions. [2023-11-26 10:47:36,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 136 transitions, 339 flow [2023-11-26 10:47:36,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 136 transitions, 332 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 10:47:36,368 INFO L231 Difference]: Finished difference. Result has 135 places, 128 transitions, 270 flow [2023-11-26 10:47:36,368 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=270, PETRI_PLACES=135, PETRI_TRANSITIONS=128} [2023-11-26 10:47:36,369 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -15 predicate places. [2023-11-26 10:47:36,369 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 128 transitions, 270 flow [2023-11-26 10:47:36,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.66666666666666) internal successors, (832), 6 states have internal predecessors, (832), 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) [2023-11-26 10:47:36,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:36,371 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:36,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:47:36,371 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-26 10:47:36,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:36,372 INFO L85 PathProgramCache]: Analyzing trace with hash -501545365, now seen corresponding path program 1 times [2023-11-26 10:47:36,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:36,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025995467] [2023-11-26 10:47:36,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:36,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:36,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:36,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:36,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025995467] [2023-11-26 10:47:36,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025995467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:36,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:36,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:36,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010521990] [2023-11-26 10:47:36,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:36,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:36,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:36,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:36,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:36,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 174 [2023-11-26 10:47:36,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 128 transitions, 270 flow. Second operand has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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) [2023-11-26 10:47:36,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:36,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 174 [2023-11-26 10:47:36,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:36,558 INFO L124 PetriNetUnfolderBase]: 22/214 cut-off events. [2023-11-26 10:47:36,558 INFO L125 PetriNetUnfolderBase]: For 9/13 co-relation queries the response was YES. [2023-11-26 10:47:36,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 214 events. 22/214 cut-off events. For 9/13 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 484 event pairs, 3 based on Foata normal form. 2/207 useless extension candidates. Maximal degree in co-relation 244. Up to 22 conditions per place. [2023-11-26 10:47:36,560 INFO L140 encePairwiseOnDemand]: 168/174 looper letters, 0 selfloop transitions, 0 changer transitions 133/133 dead transitions. [2023-11-26 10:47:36,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 133 transitions, 312 flow [2023-11-26 10:47:36,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:36,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:36,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 460 transitions. [2023-11-26 10:47:36,562 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8812260536398467 [2023-11-26 10:47:36,562 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 460 transitions. [2023-11-26 10:47:36,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 460 transitions. [2023-11-26 10:47:36,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:36,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 460 transitions. [2023-11-26 10:47:36,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:36,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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) [2023-11-26 10:47:36,567 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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) [2023-11-26 10:47:36,567 INFO L175 Difference]: Start difference. First operand has 135 places, 128 transitions, 270 flow. Second operand 3 states and 460 transitions. [2023-11-26 10:47:36,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 133 transitions, 312 flow [2023-11-26 10:47:36,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 133 transitions, 305 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 10:47:36,574 INFO L231 Difference]: Finished difference. Result has 132 places, 0 transitions, 0 flow [2023-11-26 10:47:36,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=132, PETRI_TRANSITIONS=0} [2023-11-26 10:47:36,576 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -18 predicate places. [2023-11-26 10:47:36,576 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 0 transitions, 0 flow [2023-11-26 10:47:36,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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) [2023-11-26 10:47:36,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (28 of 29 remaining) [2023-11-26 10:47:36,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2023-11-26 10:47:36,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2023-11-26 10:47:36,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2023-11-26 10:47:36,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2023-11-26 10:47:36,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2023-11-26 10:47:36,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2023-11-26 10:47:36,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2023-11-26 10:47:36,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2023-11-26 10:47:36,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2023-11-26 10:47:36,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2023-11-26 10:47:36,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2023-11-26 10:47:36,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2023-11-26 10:47:36,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2023-11-26 10:47:36,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2023-11-26 10:47:36,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2023-11-26 10:47:36,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2023-11-26 10:47:36,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 29 remaining) [2023-11-26 10:47:36,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 29 remaining) [2023-11-26 10:47:36,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2023-11-26 10:47:36,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2023-11-26 10:47:36,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2023-11-26 10:47:36,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2023-11-26 10:47:36,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2023-11-26 10:47:36,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2023-11-26 10:47:36,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2023-11-26 10:47:36,592 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2023-11-26 10:47:36,592 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2023-11-26 10:47:36,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2023-11-26 10:47:36,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:47:36,595 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:36,601 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 10:47:36,602 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:47:36,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:47:36 BasicIcfg [2023-11-26 10:47:36,617 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:47:36,618 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:47:36,619 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:47:36,619 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:47:36,619 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:31" (3/4) ... [2023-11-26 10:47:36,621 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 10:47:36,625 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-26 10:47:36,625 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-26 10:47:36,634 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-26 10:47:36,635 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 10:47:36,635 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 10:47:36,636 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 10:47:36,742 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa30dc84-494e-4dec-8ac0-e1b331961cbc/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:47:36,743 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa30dc84-494e-4dec-8ac0-e1b331961cbc/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 10:47:36,743 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:47:36,743 INFO L158 Benchmark]: Toolchain (without parser) took 6626.10ms. Allocated memory was 205.5MB in the beginning and 289.4MB in the end (delta: 83.9MB). Free memory was 172.4MB in the beginning and 236.3MB in the end (delta: -64.0MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2023-11-26 10:47:36,744 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 205.5MB. Free memory is still 180.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:47:36,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.04ms. Allocated memory is still 205.5MB. Free memory was 172.4MB in the beginning and 159.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 10:47:36,745 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.05ms. Allocated memory is still 205.5MB. Free memory was 159.8MB in the beginning and 157.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:47:36,745 INFO L158 Benchmark]: Boogie Preprocessor took 77.15ms. Allocated memory is still 205.5MB. Free memory was 157.7MB in the beginning and 155.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:47:36,745 INFO L158 Benchmark]: RCFGBuilder took 939.44ms. Allocated memory is still 205.5MB. Free memory was 154.8MB in the beginning and 110.0MB in the end (delta: 44.8MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-26 10:47:36,746 INFO L158 Benchmark]: TraceAbstraction took 5065.15ms. Allocated memory was 205.5MB in the beginning and 289.4MB in the end (delta: 83.9MB). Free memory was 109.4MB in the beginning and 241.6MB in the end (delta: -132.1MB). Peak memory consumption was 106.5MB. Max. memory is 16.1GB. [2023-11-26 10:47:36,746 INFO L158 Benchmark]: Witness Printer took 124.54ms. Allocated memory is still 289.4MB. Free memory was 241.6MB in the beginning and 236.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:47:36,748 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 205.5MB. Free memory is still 180.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.04ms. Allocated memory is still 205.5MB. Free memory was 172.4MB in the beginning and 159.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.05ms. Allocated memory is still 205.5MB. Free memory was 159.8MB in the beginning and 157.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.15ms. Allocated memory is still 205.5MB. Free memory was 157.7MB in the beginning and 155.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 939.44ms. Allocated memory is still 205.5MB. Free memory was 154.8MB in the beginning and 110.0MB in the end (delta: 44.8MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5065.15ms. Allocated memory was 205.5MB in the beginning and 289.4MB in the end (delta: 83.9MB). Free memory was 109.4MB in the beginning and 241.6MB in the end (delta: -132.1MB). Peak memory consumption was 106.5MB. Max. memory is 16.1GB. * Witness Printer took 124.54ms. Allocated memory is still 289.4MB. Free memory was 241.6MB in the beginning and 236.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 206 locations, 29 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 268 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 137 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 592 IncrementalHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 32 mSDtfsCounter, 592 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=314occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 411 NumberOfCodeBlocks, 411 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 404 ConstructedInterpolants, 0 QuantifiedInterpolants, 689 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 10:47:36,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa30dc84-494e-4dec-8ac0-e1b331961cbc/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE