./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/fib_safe-7-racy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 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_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/fib_safe-7-racy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ --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 1723883ecbdb95d71ea3ec2c746fab3b92c3a077cf232c2150d4112b37a05f98 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:35:49,132 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:35:49,202 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 21:35:49,208 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:35:49,209 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:35:49,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:35:49,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:35:49,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:35:49,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:35:49,239 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:35:49,239 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:35:49,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:35:49,241 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:35:49,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:35:49,242 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:35:49,243 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:35:49,243 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:35:49,244 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:35:49,245 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:35:49,245 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:35:49,246 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:35:49,246 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:35:49,247 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 21:35:49,247 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:35:49,248 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:35:49,248 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:35:49,249 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:35:49,249 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:35:49,250 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:35:49,250 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:35:49,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:35:49,251 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:35:49,252 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:35:49,252 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:35:49,253 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:35:49,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:35:49,253 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:35:49,254 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:35:49,254 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:35:49,255 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:35:49,255 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:35:49,256 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_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1723883ecbdb95d71ea3ec2c746fab3b92c3a077cf232c2150d4112b37a05f98 [2023-11-23 21:35:49,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:35:49,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:35:49,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:35:49,590 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:35:49,591 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:35:49,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/pthread/fib_safe-7-racy.i [2023-11-23 21:35:52,916 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:35:53,259 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:35:53,259 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/sv-benchmarks/c/pthread/fib_safe-7-racy.i [2023-11-23 21:35:53,281 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/data/29354dee3/ca45967bbac145a69b45dd3d665738b9/FLAGb26dc0bd8 [2023-11-23 21:35:53,300 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/data/29354dee3/ca45967bbac145a69b45dd3d665738b9 [2023-11-23 21:35:53,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:35:53,308 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:35:53,310 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:35:53,310 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:35:53,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:35:53,318 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:35:53" (1/1) ... [2023-11-23 21:35:53,319 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46f87767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:53, skipping insertion in model container [2023-11-23 21:35:53,320 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:35:53" (1/1) ... [2023-11-23 21:35:53,386 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:35:53,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:35:53,788 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:35:53,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:35:53,874 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:35:53,874 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:35:53,883 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:35:53,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:53 WrapperNode [2023-11-23 21:35:53,884 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:35:53,885 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:35:53,886 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:35:53,887 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:35:53,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:53" (1/1) ... [2023-11-23 21:35:53,934 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:53" (1/1) ... [2023-11-23 21:35:53,975 INFO L138 Inliner]: procedures = 164, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 123 [2023-11-23 21:35:53,976 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:35:53,977 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:35:53,977 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:35:53,978 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:35:53,988 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:53" (1/1) ... [2023-11-23 21:35:53,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:53" (1/1) ... [2023-11-23 21:35:54,006 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:53" (1/1) ... [2023-11-23 21:35:54,012 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:53" (1/1) ... [2023-11-23 21:35:54,020 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:53" (1/1) ... [2023-11-23 21:35:54,039 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:53" (1/1) ... [2023-11-23 21:35:54,041 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:53" (1/1) ... [2023-11-23 21:35:54,043 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:53" (1/1) ... [2023-11-23 21:35:54,047 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:35:54,048 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:35:54,048 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:35:54,048 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:35:54,049 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:53" (1/1) ... [2023-11-23 21:35:54,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:35:54,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:35:54,099 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:35:54,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:35:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-23 21:35:54,153 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-23 21:35:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-23 21:35:54,153 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-23 21:35:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:35:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 21:35:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:35:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:35:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:35:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:35:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 21:35:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:35:54,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:35:54,157 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 21:35:54,325 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:35:54,328 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:35:54,634 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:35:54,731 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:35:54,732 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-23 21:35:54,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:35:54 BoogieIcfgContainer [2023-11-23 21:35:54,734 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:35:54,750 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:35:54,750 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:35:54,753 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:35:54,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:35:53" (1/3) ... [2023-11-23 21:35:54,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fbf4c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:35:54, skipping insertion in model container [2023-11-23 21:35:54,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:53" (2/3) ... [2023-11-23 21:35:54,755 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fbf4c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:35:54, skipping insertion in model container [2023-11-23 21:35:54,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:35:54" (3/3) ... [2023-11-23 21:35:54,757 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-7-racy.i [2023-11-23 21:35:54,766 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 21:35:54,779 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:35:54,779 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-23 21:35:54,780 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 21:35:54,858 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 21:35:54,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 193 transitions, 394 flow [2023-11-23 21:35:55,084 INFO L124 PetriNetUnfolderBase]: 9/191 cut-off events. [2023-11-23 21:35:55,085 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:35:55,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 191 events. 9/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 394 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 164. Up to 2 conditions per place. [2023-11-23 21:35:55,097 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 193 transitions, 394 flow [2023-11-23 21:35:55,116 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 189 places, 191 transitions, 388 flow [2023-11-23 21:35:55,136 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:35:55,147 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;@6b718258, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:35:55,147 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2023-11-23 21:35:55,162 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 21:35:55,163 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2023-11-23 21:35:55,163 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:35:55,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:55,165 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:35:55,165 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:35:55,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:55,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1678568219, now seen corresponding path program 1 times [2023-11-23 21:35:55,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:55,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343243046] [2023-11-23 21:35:55,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:55,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:55,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:55,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:55,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:55,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343243046] [2023-11-23 21:35:55,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343243046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:55,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:55,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 21:35:55,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997465497] [2023-11-23 21:35:55,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:55,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:35:55,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:55,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:35:55,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:35:55,541 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 193 [2023-11-23 21:35:55,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 191 transitions, 388 flow. Second operand has 2 states, 2 states have (on average 173.5) internal successors, (347), 2 states have internal predecessors, (347), 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) [2023-11-23 21:35:55,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:55,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 193 [2023-11-23 21:35:55,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:55,642 INFO L124 PetriNetUnfolderBase]: 9/294 cut-off events. [2023-11-23 21:35:55,642 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-23 21:35:55,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 294 events. 9/294 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 977 event pairs, 2 based on Foata normal form. 12/256 useless extension candidates. Maximal degree in co-relation 278. Up to 11 conditions per place. [2023-11-23 21:35:55,650 INFO L140 encePairwiseOnDemand]: 180/193 looper letters, 6 selfloop transitions, 0 changer transitions 0/175 dead transitions. [2023-11-23 21:35:55,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 175 transitions, 368 flow [2023-11-23 21:35:55,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:35:55,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-23 21:35:55,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 365 transitions. [2023-11-23 21:35:55,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9455958549222798 [2023-11-23 21:35:55,674 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 365 transitions. [2023-11-23 21:35:55,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 365 transitions. [2023-11-23 21:35:55,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:55,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 365 transitions. [2023-11-23 21:35:55,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 182.5) internal successors, (365), 2 states have internal predecessors, (365), 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) [2023-11-23 21:35:55,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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) [2023-11-23 21:35:55,697 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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) [2023-11-23 21:35:55,699 INFO L175 Difference]: Start difference. First operand has 189 places, 191 transitions, 388 flow. Second operand 2 states and 365 transitions. [2023-11-23 21:35:55,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 175 transitions, 368 flow [2023-11-23 21:35:55,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 175 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:55,714 INFO L231 Difference]: Finished difference. Result has 177 places, 175 transitions, 354 flow [2023-11-23 21:35:55,717 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=354, PETRI_PLACES=177, PETRI_TRANSITIONS=175} [2023-11-23 21:35:55,724 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -12 predicate places. [2023-11-23 21:35:55,726 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 175 transitions, 354 flow [2023-11-23 21:35:55,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 173.5) internal successors, (347), 2 states have internal predecessors, (347), 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) [2023-11-23 21:35:55,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:55,727 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] [2023-11-23 21:35:55,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:35:55,727 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:35:55,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:55,729 INFO L85 PathProgramCache]: Analyzing trace with hash -495615639, now seen corresponding path program 1 times [2023-11-23 21:35:55,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:55,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926054346] [2023-11-23 21:35:55,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:55,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:55,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:55,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:55,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926054346] [2023-11-23 21:35:55,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926054346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:55,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:55,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:55,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335996781] [2023-11-23 21:35:55,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:55,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:55,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:55,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:55,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:55,966 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2023-11-23 21:35:55,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 175 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 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) [2023-11-23 21:35:55,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:55,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2023-11-23 21:35:55,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:56,101 INFO L124 PetriNetUnfolderBase]: 30/374 cut-off events. [2023-11-23 21:35:56,103 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:35:56,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 374 events. 30/374 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1694 event pairs, 8 based on Foata normal form. 0/304 useless extension candidates. Maximal degree in co-relation 444. Up to 41 conditions per place. [2023-11-23 21:35:56,116 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 13 selfloop transitions, 2 changer transitions 0/176 dead transitions. [2023-11-23 21:35:56,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 176 transitions, 388 flow [2023-11-23 21:35:56,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:56,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:56,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 511 transitions. [2023-11-23 21:35:56,121 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8825561312607945 [2023-11-23 21:35:56,121 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 511 transitions. [2023-11-23 21:35:56,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 511 transitions. [2023-11-23 21:35:56,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:56,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 511 transitions. [2023-11-23 21:35:56,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:56,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:56,130 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:56,131 INFO L175 Difference]: Start difference. First operand has 177 places, 175 transitions, 354 flow. Second operand 3 states and 511 transitions. [2023-11-23 21:35:56,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 176 transitions, 388 flow [2023-11-23 21:35:56,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 176 transitions, 388 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 21:35:56,139 INFO L231 Difference]: Finished difference. Result has 178 places, 174 transitions, 356 flow [2023-11-23 21:35:56,139 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=356, PETRI_PLACES=178, PETRI_TRANSITIONS=174} [2023-11-23 21:35:56,141 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -11 predicate places. [2023-11-23 21:35:56,141 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 174 transitions, 356 flow [2023-11-23 21:35:56,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 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) [2023-11-23 21:35:56,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:56,147 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] [2023-11-23 21:35:56,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:35:56,149 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:35:56,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:56,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1212581605, now seen corresponding path program 1 times [2023-11-23 21:35:56,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:56,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300815438] [2023-11-23 21:35:56,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:56,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:56,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:56,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:56,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:56,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300815438] [2023-11-23 21:35:56,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300815438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:56,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:56,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:56,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509774106] [2023-11-23 21:35:56,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:56,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:56,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:56,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:56,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:56,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2023-11-23 21:35:56,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 174 transitions, 356 flow. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 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) [2023-11-23 21:35:56,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:56,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2023-11-23 21:35:56,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:56,398 INFO L124 PetriNetUnfolderBase]: 20/226 cut-off events. [2023-11-23 21:35:56,399 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-23 21:35:56,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 226 events. 20/226 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 807 event pairs, 4 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 290. Up to 25 conditions per place. [2023-11-23 21:35:56,404 INFO L140 encePairwiseOnDemand]: 189/193 looper letters, 12 selfloop transitions, 2 changer transitions 0/174 dead transitions. [2023-11-23 21:35:56,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 174 transitions, 386 flow [2023-11-23 21:35:56,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:56,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:56,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 511 transitions. [2023-11-23 21:35:56,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8825561312607945 [2023-11-23 21:35:56,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 511 transitions. [2023-11-23 21:35:56,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 511 transitions. [2023-11-23 21:35:56,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:56,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 511 transitions. [2023-11-23 21:35:56,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:56,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:56,413 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:56,413 INFO L175 Difference]: Start difference. First operand has 178 places, 174 transitions, 356 flow. Second operand 3 states and 511 transitions. [2023-11-23 21:35:56,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 174 transitions, 386 flow [2023-11-23 21:35:56,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 174 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:56,422 INFO L231 Difference]: Finished difference. Result has 176 places, 172 transitions, 352 flow [2023-11-23 21:35:56,423 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=176, PETRI_TRANSITIONS=172} [2023-11-23 21:35:56,425 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -13 predicate places. [2023-11-23 21:35:56,425 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 172 transitions, 352 flow [2023-11-23 21:35:56,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 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) [2023-11-23 21:35:56,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:56,426 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] [2023-11-23 21:35:56,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:35:56,426 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:35:56,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:56,427 INFO L85 PathProgramCache]: Analyzing trace with hash -87959945, now seen corresponding path program 1 times [2023-11-23 21:35:56,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:56,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723504489] [2023-11-23 21:35:56,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:56,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:56,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:56,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:56,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723504489] [2023-11-23 21:35:56,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723504489] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:56,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:56,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:56,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759014821] [2023-11-23 21:35:56,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:56,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:56,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:56,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:56,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:56,541 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2023-11-23 21:35:56,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 172 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:56,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:56,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2023-11-23 21:35:56,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:56,619 INFO L124 PetriNetUnfolderBase]: 16/296 cut-off events. [2023-11-23 21:35:56,619 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:35:56,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 296 events. 16/296 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1112 event pairs, 7 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 335. Up to 26 conditions per place. [2023-11-23 21:35:56,624 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 12 selfloop transitions, 2 changer transitions 0/172 dead transitions. [2023-11-23 21:35:56,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 172 transitions, 380 flow [2023-11-23 21:35:56,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:56,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:56,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 510 transitions. [2023-11-23 21:35:56,628 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8808290155440415 [2023-11-23 21:35:56,628 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 510 transitions. [2023-11-23 21:35:56,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 510 transitions. [2023-11-23 21:35:56,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:56,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 510 transitions. [2023-11-23 21:35:56,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 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) [2023-11-23 21:35:56,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:56,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:56,634 INFO L175 Difference]: Start difference. First operand has 176 places, 172 transitions, 352 flow. Second operand 3 states and 510 transitions. [2023-11-23 21:35:56,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 172 transitions, 380 flow [2023-11-23 21:35:56,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 172 transitions, 376 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:56,639 INFO L231 Difference]: Finished difference. Result has 175 places, 171 transitions, 350 flow [2023-11-23 21:35:56,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=175, PETRI_TRANSITIONS=171} [2023-11-23 21:35:56,642 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -14 predicate places. [2023-11-23 21:35:56,642 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 171 transitions, 350 flow [2023-11-23 21:35:56,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:56,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:56,644 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] [2023-11-23 21:35:56,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:35:56,644 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:35:56,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:56,645 INFO L85 PathProgramCache]: Analyzing trace with hash -484121739, now seen corresponding path program 1 times [2023-11-23 21:35:56,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:56,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525339510] [2023-11-23 21:35:56,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:56,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:56,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:56,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:56,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525339510] [2023-11-23 21:35:56,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525339510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:56,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:56,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:56,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998888897] [2023-11-23 21:35:56,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:56,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:56,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:56,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:56,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:56,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2023-11-23 21:35:56,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 171 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:56,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:56,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2023-11-23 21:35:56,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:56,846 INFO L124 PetriNetUnfolderBase]: 15/291 cut-off events. [2023-11-23 21:35:56,846 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-23 21:35:56,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 291 events. 15/291 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1064 event pairs, 3 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 329. Up to 15 conditions per place. [2023-11-23 21:35:56,851 INFO L140 encePairwiseOnDemand]: 189/193 looper letters, 11 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2023-11-23 21:35:56,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 170 transitions, 374 flow [2023-11-23 21:35:56,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:56,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:56,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 510 transitions. [2023-11-23 21:35:56,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8808290155440415 [2023-11-23 21:35:56,856 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 510 transitions. [2023-11-23 21:35:56,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 510 transitions. [2023-11-23 21:35:56,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:56,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 510 transitions. [2023-11-23 21:35:56,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 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) [2023-11-23 21:35:56,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:56,862 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:56,862 INFO L175 Difference]: Start difference. First operand has 175 places, 171 transitions, 350 flow. Second operand 3 states and 510 transitions. [2023-11-23 21:35:56,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 170 transitions, 374 flow [2023-11-23 21:35:56,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 170 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:56,889 INFO L231 Difference]: Finished difference. Result has 173 places, 169 transitions, 346 flow [2023-11-23 21:35:56,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=173, PETRI_TRANSITIONS=169} [2023-11-23 21:35:56,890 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -16 predicate places. [2023-11-23 21:35:56,890 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 169 transitions, 346 flow [2023-11-23 21:35:56,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:56,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:56,891 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] [2023-11-23 21:35:56,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:35:56,892 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:35:56,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:56,892 INFO L85 PathProgramCache]: Analyzing trace with hash 498936638, now seen corresponding path program 1 times [2023-11-23 21:35:56,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:56,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428880010] [2023-11-23 21:35:56,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:56,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:56,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:56,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:56,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428880010] [2023-11-23 21:35:56,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428880010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:56,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:56,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:56,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873132710] [2023-11-23 21:35:56,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:56,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:56,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:56,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:56,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:56,972 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 193 [2023-11-23 21:35:56,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 169 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 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) [2023-11-23 21:35:56,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:56,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 193 [2023-11-23 21:35:56,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:57,089 INFO L124 PetriNetUnfolderBase]: 49/491 cut-off events. [2023-11-23 21:35:57,089 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:35:57,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 491 events. 49/491 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2640 event pairs, 30 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 583. Up to 67 conditions per place. [2023-11-23 21:35:57,097 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2023-11-23 21:35:57,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 170 transitions, 382 flow [2023-11-23 21:35:57,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:57,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:57,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 507 transitions. [2023-11-23 21:35:57,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8756476683937824 [2023-11-23 21:35:57,100 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 507 transitions. [2023-11-23 21:35:57,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 507 transitions. [2023-11-23 21:35:57,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:57,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 507 transitions. [2023-11-23 21:35:57,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 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) [2023-11-23 21:35:57,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:57,106 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:57,106 INFO L175 Difference]: Start difference. First operand has 173 places, 169 transitions, 346 flow. Second operand 3 states and 507 transitions. [2023-11-23 21:35:57,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 170 transitions, 382 flow [2023-11-23 21:35:57,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 170 transitions, 378 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:57,112 INFO L231 Difference]: Finished difference. Result has 172 places, 168 transitions, 344 flow [2023-11-23 21:35:57,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=172, PETRI_TRANSITIONS=168} [2023-11-23 21:35:57,116 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -17 predicate places. [2023-11-23 21:35:57,116 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 168 transitions, 344 flow [2023-11-23 21:35:57,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 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) [2023-11-23 21:35:57,117 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:57,117 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] [2023-11-23 21:35:57,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:35:57,119 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:35:57,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:57,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1060095838, now seen corresponding path program 1 times [2023-11-23 21:35:57,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:57,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396336972] [2023-11-23 21:35:57,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:57,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:57,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:57,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:57,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:57,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396336972] [2023-11-23 21:35:57,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396336972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:57,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:57,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:57,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181653818] [2023-11-23 21:35:57,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:57,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:57,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:57,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:57,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:57,217 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2023-11-23 21:35:57,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 168 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:57,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:57,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2023-11-23 21:35:57,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:57,308 INFO L124 PetriNetUnfolderBase]: 37/465 cut-off events. [2023-11-23 21:35:57,308 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-23 21:35:57,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 465 events. 37/465 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2335 event pairs, 10 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 537. Up to 32 conditions per place. [2023-11-23 21:35:57,315 INFO L140 encePairwiseOnDemand]: 189/193 looper letters, 12 selfloop transitions, 2 changer transitions 0/168 dead transitions. [2023-11-23 21:35:57,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 168 transitions, 372 flow [2023-11-23 21:35:57,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:57,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:57,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 511 transitions. [2023-11-23 21:35:57,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8825561312607945 [2023-11-23 21:35:57,318 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 511 transitions. [2023-11-23 21:35:57,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 511 transitions. [2023-11-23 21:35:57,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:57,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 511 transitions. [2023-11-23 21:35:57,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:57,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:57,323 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:57,323 INFO L175 Difference]: Start difference. First operand has 172 places, 168 transitions, 344 flow. Second operand 3 states and 511 transitions. [2023-11-23 21:35:57,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 168 transitions, 372 flow [2023-11-23 21:35:57,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 168 transitions, 368 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:57,328 INFO L231 Difference]: Finished difference. Result has 170 places, 166 transitions, 340 flow [2023-11-23 21:35:57,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=170, PETRI_TRANSITIONS=166} [2023-11-23 21:35:57,329 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -19 predicate places. [2023-11-23 21:35:57,329 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 166 transitions, 340 flow [2023-11-23 21:35:57,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:57,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:57,330 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] [2023-11-23 21:35:57,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 21:35:57,331 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:35:57,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:57,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1246894669, now seen corresponding path program 1 times [2023-11-23 21:35:57,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:57,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277304379] [2023-11-23 21:35:57,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:57,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:57,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:57,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:57,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277304379] [2023-11-23 21:35:57,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277304379] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:57,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:57,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:57,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734515591] [2023-11-23 21:35:57,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:57,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:57,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:57,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:57,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:57,435 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2023-11-23 21:35:57,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 166 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 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) [2023-11-23 21:35:57,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:57,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2023-11-23 21:35:57,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:57,495 INFO L124 PetriNetUnfolderBase]: 20/217 cut-off events. [2023-11-23 21:35:57,495 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:35:57,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 217 events. 20/217 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 740 event pairs, 10 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 280. Up to 34 conditions per place. [2023-11-23 21:35:57,499 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 13 selfloop transitions, 2 changer transitions 0/167 dead transitions. [2023-11-23 21:35:57,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 167 transitions, 374 flow [2023-11-23 21:35:57,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:57,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:57,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 511 transitions. [2023-11-23 21:35:57,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8825561312607945 [2023-11-23 21:35:57,502 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 511 transitions. [2023-11-23 21:35:57,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 511 transitions. [2023-11-23 21:35:57,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:57,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 511 transitions. [2023-11-23 21:35:57,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:57,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:57,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:57,506 INFO L175 Difference]: Start difference. First operand has 170 places, 166 transitions, 340 flow. Second operand 3 states and 511 transitions. [2023-11-23 21:35:57,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 167 transitions, 374 flow [2023-11-23 21:35:57,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 167 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:57,511 INFO L231 Difference]: Finished difference. Result has 169 places, 165 transitions, 338 flow [2023-11-23 21:35:57,511 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=169, PETRI_TRANSITIONS=165} [2023-11-23 21:35:57,515 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -20 predicate places. [2023-11-23 21:35:57,515 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 165 transitions, 338 flow [2023-11-23 21:35:57,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 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) [2023-11-23 21:35:57,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:57,516 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] [2023-11-23 21:35:57,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 21:35:57,516 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:35:57,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:57,517 INFO L85 PathProgramCache]: Analyzing trace with hash -420220774, now seen corresponding path program 1 times [2023-11-23 21:35:57,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:57,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314115005] [2023-11-23 21:35:57,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:57,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:57,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:57,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:57,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314115005] [2023-11-23 21:35:57,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314115005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:57,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:57,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:35:57,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845913578] [2023-11-23 21:35:57,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:57,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:57,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:57,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:57,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:57,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 193 [2023-11-23 21:35:57,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 165 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 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) [2023-11-23 21:35:57,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:57,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 193 [2023-11-23 21:35:57,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:57,722 INFO L124 PetriNetUnfolderBase]: 25/604 cut-off events. [2023-11-23 21:35:57,722 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:35:57,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 604 events. 25/604 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2698 event pairs, 6 based on Foata normal form. 4/520 useless extension candidates. Maximal degree in co-relation 651. Up to 21 conditions per place. [2023-11-23 21:35:57,730 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 11 selfloop transitions, 2 changer transitions 0/168 dead transitions. [2023-11-23 21:35:57,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 168 transitions, 370 flow [2023-11-23 21:35:57,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:57,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:57,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 521 transitions. [2023-11-23 21:35:57,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8998272884283247 [2023-11-23 21:35:57,733 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 521 transitions. [2023-11-23 21:35:57,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 521 transitions. [2023-11-23 21:35:57,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:57,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 521 transitions. [2023-11-23 21:35:57,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 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) [2023-11-23 21:35:57,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:57,737 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:57,737 INFO L175 Difference]: Start difference. First operand has 169 places, 165 transitions, 338 flow. Second operand 3 states and 521 transitions. [2023-11-23 21:35:57,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 168 transitions, 370 flow [2023-11-23 21:35:57,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 168 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:57,742 INFO L231 Difference]: Finished difference. Result has 170 places, 166 transitions, 346 flow [2023-11-23 21:35:57,742 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=170, PETRI_TRANSITIONS=166} [2023-11-23 21:35:57,744 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -19 predicate places. [2023-11-23 21:35:57,744 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 166 transitions, 346 flow [2023-11-23 21:35:57,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 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) [2023-11-23 21:35:57,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:57,745 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] [2023-11-23 21:35:57,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 21:35:57,745 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:35:57,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:57,746 INFO L85 PathProgramCache]: Analyzing trace with hash -420221410, now seen corresponding path program 1 times [2023-11-23 21:35:57,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:57,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59058454] [2023-11-23 21:35:57,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:57,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:57,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:57,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:57,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59058454] [2023-11-23 21:35:57,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59058454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:57,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:57,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:57,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121755559] [2023-11-23 21:35:57,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:57,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:57,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:57,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:57,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:57,825 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 193 [2023-11-23 21:35:57,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 166 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 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) [2023-11-23 21:35:57,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:57,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 193 [2023-11-23 21:35:57,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:57,961 INFO L124 PetriNetUnfolderBase]: 55/588 cut-off events. [2023-11-23 21:35:57,962 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-23 21:35:57,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 588 events. 55/588 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2607 event pairs, 10 based on Foata normal form. 0/514 useless extension candidates. Maximal degree in co-relation 689. Up to 56 conditions per place. [2023-11-23 21:35:57,972 INFO L140 encePairwiseOnDemand]: 188/193 looper letters, 10 selfloop transitions, 3 changer transitions 0/166 dead transitions. [2023-11-23 21:35:57,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 166 transitions, 372 flow [2023-11-23 21:35:57,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:57,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:57,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2023-11-23 21:35:57,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8860103626943006 [2023-11-23 21:35:57,974 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2023-11-23 21:35:57,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2023-11-23 21:35:57,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:57,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2023-11-23 21:35:57,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2023-11-23 21:35:57,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:57,980 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:57,980 INFO L175 Difference]: Start difference. First operand has 170 places, 166 transitions, 346 flow. Second operand 3 states and 513 transitions. [2023-11-23 21:35:57,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 166 transitions, 372 flow [2023-11-23 21:35:57,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 166 transitions, 370 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 21:35:57,985 INFO L231 Difference]: Finished difference. Result has 169 places, 164 transitions, 346 flow [2023-11-23 21:35:57,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=169, PETRI_TRANSITIONS=164} [2023-11-23 21:35:57,987 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -20 predicate places. [2023-11-23 21:35:57,987 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 164 transitions, 346 flow [2023-11-23 21:35:57,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 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) [2023-11-23 21:35:57,988 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:57,988 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] [2023-11-23 21:35:57,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 21:35:57,989 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:35:57,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:57,989 INFO L85 PathProgramCache]: Analyzing trace with hash -105833620, now seen corresponding path program 1 times [2023-11-23 21:35:57,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:57,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036346235] [2023-11-23 21:35:57,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:57,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:58,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:58,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:58,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036346235] [2023-11-23 21:35:58,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036346235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:58,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:58,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:58,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091762303] [2023-11-23 21:35:58,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:58,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:58,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:58,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:58,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:58,078 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 193 [2023-11-23 21:35:58,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 164 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 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) [2023-11-23 21:35:58,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:58,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 193 [2023-11-23 21:35:58,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:58,202 INFO L124 PetriNetUnfolderBase]: 61/542 cut-off events. [2023-11-23 21:35:58,202 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:35:58,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 676 conditions, 542 events. 61/542 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2376 event pairs, 10 based on Foata normal form. 0/486 useless extension candidates. Maximal degree in co-relation 671. Up to 72 conditions per place. [2023-11-23 21:35:58,209 INFO L140 encePairwiseOnDemand]: 189/193 looper letters, 11 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2023-11-23 21:35:58,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 164 transitions, 372 flow [2023-11-23 21:35:58,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:58,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:58,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2023-11-23 21:35:58,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8860103626943006 [2023-11-23 21:35:58,212 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2023-11-23 21:35:58,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2023-11-23 21:35:58,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:58,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2023-11-23 21:35:58,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2023-11-23 21:35:58,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:58,217 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:58,217 INFO L175 Difference]: Start difference. First operand has 169 places, 164 transitions, 346 flow. Second operand 3 states and 513 transitions. [2023-11-23 21:35:58,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 164 transitions, 372 flow [2023-11-23 21:35:58,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 164 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:58,222 INFO L231 Difference]: Finished difference. Result has 167 places, 162 transitions, 340 flow [2023-11-23 21:35:58,222 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=167, PETRI_TRANSITIONS=162} [2023-11-23 21:35:58,223 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -22 predicate places. [2023-11-23 21:35:58,223 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 162 transitions, 340 flow [2023-11-23 21:35:58,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 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) [2023-11-23 21:35:58,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:58,224 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] [2023-11-23 21:35:58,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 21:35:58,224 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:35:58,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:58,225 INFO L85 PathProgramCache]: Analyzing trace with hash 919608385, now seen corresponding path program 1 times [2023-11-23 21:35:58,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:58,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869283284] [2023-11-23 21:35:58,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:58,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:58,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:58,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:58,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869283284] [2023-11-23 21:35:58,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869283284] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:58,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:58,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:58,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017256203] [2023-11-23 21:35:58,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:58,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:58,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:58,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:58,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:58,283 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2023-11-23 21:35:58,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 162 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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) [2023-11-23 21:35:58,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:58,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2023-11-23 21:35:58,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:58,356 INFO L124 PetriNetUnfolderBase]: 15/342 cut-off events. [2023-11-23 21:35:58,356 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:35:58,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 342 events. 15/342 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 991 event pairs, 6 based on Foata normal form. 0/312 useless extension candidates. Maximal degree in co-relation 393. Up to 25 conditions per place. [2023-11-23 21:35:58,362 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 12 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2023-11-23 21:35:58,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 162 transitions, 368 flow [2023-11-23 21:35:58,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:58,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:58,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 510 transitions. [2023-11-23 21:35:58,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8808290155440415 [2023-11-23 21:35:58,365 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 510 transitions. [2023-11-23 21:35:58,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 510 transitions. [2023-11-23 21:35:58,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:58,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 510 transitions. [2023-11-23 21:35:58,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 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) [2023-11-23 21:35:58,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:58,369 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:58,369 INFO L175 Difference]: Start difference. First operand has 167 places, 162 transitions, 340 flow. Second operand 3 states and 510 transitions. [2023-11-23 21:35:58,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 162 transitions, 368 flow [2023-11-23 21:35:58,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 162 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:58,374 INFO L231 Difference]: Finished difference. Result has 166 places, 161 transitions, 338 flow [2023-11-23 21:35:58,375 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=166, PETRI_TRANSITIONS=161} [2023-11-23 21:35:58,375 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -23 predicate places. [2023-11-23 21:35:58,376 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 161 transitions, 338 flow [2023-11-23 21:35:58,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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) [2023-11-23 21:35:58,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:58,376 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] [2023-11-23 21:35:58,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 21:35:58,377 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:35:58,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:58,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1014768213, now seen corresponding path program 1 times [2023-11-23 21:35:58,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:58,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674908283] [2023-11-23 21:35:58,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:58,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:58,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:58,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:58,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674908283] [2023-11-23 21:35:58,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674908283] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:58,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:58,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:58,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929957275] [2023-11-23 21:35:58,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:58,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:58,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:58,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:58,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:58,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2023-11-23 21:35:58,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 161 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 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) [2023-11-23 21:35:58,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:58,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2023-11-23 21:35:58,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:58,545 INFO L124 PetriNetUnfolderBase]: 61/604 cut-off events. [2023-11-23 21:35:58,545 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:35:58,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 738 conditions, 604 events. 61/604 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2964 event pairs, 34 based on Foata normal form. 0/554 useless extension candidates. Maximal degree in co-relation 733. Up to 75 conditions per place. [2023-11-23 21:35:58,553 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 13 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2023-11-23 21:35:58,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 162 transitions, 370 flow [2023-11-23 21:35:58,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:58,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:58,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 511 transitions. [2023-11-23 21:35:58,555 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8825561312607945 [2023-11-23 21:35:58,555 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 511 transitions. [2023-11-23 21:35:58,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 511 transitions. [2023-11-23 21:35:58,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:58,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 511 transitions. [2023-11-23 21:35:58,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:58,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:58,560 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:58,560 INFO L175 Difference]: Start difference. First operand has 166 places, 161 transitions, 338 flow. Second operand 3 states and 511 transitions. [2023-11-23 21:35:58,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 162 transitions, 370 flow [2023-11-23 21:35:58,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 162 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:58,565 INFO L231 Difference]: Finished difference. Result has 165 places, 160 transitions, 336 flow [2023-11-23 21:35:58,566 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=165, PETRI_TRANSITIONS=160} [2023-11-23 21:35:58,567 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -24 predicate places. [2023-11-23 21:35:58,567 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 160 transitions, 336 flow [2023-11-23 21:35:58,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 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) [2023-11-23 21:35:58,568 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:58,568 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:35:58,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 21:35:58,568 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:35:58,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:58,569 INFO L85 PathProgramCache]: Analyzing trace with hash -952634815, now seen corresponding path program 1 times [2023-11-23 21:35:58,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:58,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060612981] [2023-11-23 21:35:58,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:58,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:58,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:58,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:58,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060612981] [2023-11-23 21:35:58,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060612981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:58,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:58,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:58,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297145620] [2023-11-23 21:35:58,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:58,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:58,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:58,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:58,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:58,661 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 193 [2023-11-23 21:35:58,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 160 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 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) [2023-11-23 21:35:58,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:58,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 193 [2023-11-23 21:35:58,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:58,796 INFO L124 PetriNetUnfolderBase]: 65/600 cut-off events. [2023-11-23 21:35:58,796 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:35:58,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 754 conditions, 600 events. 65/600 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3021 event pairs, 38 based on Foata normal form. 0/558 useless extension candidates. Maximal degree in co-relation 749. Up to 83 conditions per place. [2023-11-23 21:35:58,804 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 14 selfloop transitions, 2 changer transitions 0/161 dead transitions. [2023-11-23 21:35:58,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 161 transitions, 370 flow [2023-11-23 21:35:58,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:58,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:58,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 509 transitions. [2023-11-23 21:35:58,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8791018998272885 [2023-11-23 21:35:58,807 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 509 transitions. [2023-11-23 21:35:58,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 509 transitions. [2023-11-23 21:35:58,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:58,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 509 transitions. [2023-11-23 21:35:58,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 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) [2023-11-23 21:35:58,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:58,813 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:58,813 INFO L175 Difference]: Start difference. First operand has 165 places, 160 transitions, 336 flow. Second operand 3 states and 509 transitions. [2023-11-23 21:35:58,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 161 transitions, 370 flow [2023-11-23 21:35:58,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 161 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:58,819 INFO L231 Difference]: Finished difference. Result has 164 places, 159 transitions, 334 flow [2023-11-23 21:35:58,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=164, PETRI_TRANSITIONS=159} [2023-11-23 21:35:58,820 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -25 predicate places. [2023-11-23 21:35:58,820 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 159 transitions, 334 flow [2023-11-23 21:35:58,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 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) [2023-11-23 21:35:58,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:58,821 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] [2023-11-23 21:35:58,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 21:35:58,822 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:35:58,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:58,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1200574010, now seen corresponding path program 1 times [2023-11-23 21:35:58,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:58,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72942157] [2023-11-23 21:35:58,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:58,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:58,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:58,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:58,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72942157] [2023-11-23 21:35:58,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72942157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:58,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:58,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:58,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441994695] [2023-11-23 21:35:58,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:58,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:58,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:58,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:58,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:58,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 193 [2023-11-23 21:35:58,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 159 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 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) [2023-11-23 21:35:58,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:58,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 193 [2023-11-23 21:35:58,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:58,991 INFO L124 PetriNetUnfolderBase]: 49/570 cut-off events. [2023-11-23 21:35:58,992 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:35:58,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 672 conditions, 570 events. 49/570 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2530 event pairs, 10 based on Foata normal form. 0/528 useless extension candidates. Maximal degree in co-relation 667. Up to 40 conditions per place. [2023-11-23 21:35:59,000 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 10 selfloop transitions, 2 changer transitions 0/161 dead transitions. [2023-11-23 21:35:59,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 161 transitions, 362 flow [2023-11-23 21:35:59,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:59,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:59,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 520 transitions. [2023-11-23 21:35:59,003 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8981001727115717 [2023-11-23 21:35:59,003 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 520 transitions. [2023-11-23 21:35:59,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 520 transitions. [2023-11-23 21:35:59,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:59,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 520 transitions. [2023-11-23 21:35:59,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 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) [2023-11-23 21:35:59,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:59,007 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:59,008 INFO L175 Difference]: Start difference. First operand has 164 places, 159 transitions, 334 flow. Second operand 3 states and 520 transitions. [2023-11-23 21:35:59,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 161 transitions, 362 flow [2023-11-23 21:35:59,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 161 transitions, 358 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:59,012 INFO L231 Difference]: Finished difference. Result has 164 places, 159 transitions, 338 flow [2023-11-23 21:35:59,013 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=164, PETRI_TRANSITIONS=159} [2023-11-23 21:35:59,014 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -25 predicate places. [2023-11-23 21:35:59,014 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 159 transitions, 338 flow [2023-11-23 21:35:59,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 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) [2023-11-23 21:35:59,014 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:59,015 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] [2023-11-23 21:35:59,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 21:35:59,015 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:35:59,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:59,016 INFO L85 PathProgramCache]: Analyzing trace with hash 923132931, now seen corresponding path program 1 times [2023-11-23 21:35:59,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:59,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600364331] [2023-11-23 21:35:59,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:59,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:59,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:59,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:59,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600364331] [2023-11-23 21:35:59,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600364331] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:59,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:59,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:59,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777431696] [2023-11-23 21:35:59,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:59,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:59,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:59,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:59,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:59,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 193 [2023-11-23 21:35:59,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 159 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:59,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:59,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 193 [2023-11-23 21:35:59,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:59,186 INFO L124 PetriNetUnfolderBase]: 69/588 cut-off events. [2023-11-23 21:35:59,186 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-23 21:35:59,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 755 conditions, 588 events. 69/588 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2970 event pairs, 42 based on Foata normal form. 0/562 useless extension candidates. Maximal degree in co-relation 749. Up to 91 conditions per place. [2023-11-23 21:35:59,194 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 14 selfloop transitions, 2 changer transitions 0/160 dead transitions. [2023-11-23 21:35:59,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 160 transitions, 372 flow [2023-11-23 21:35:59,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:59,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:59,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 509 transitions. [2023-11-23 21:35:59,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8791018998272885 [2023-11-23 21:35:59,197 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 509 transitions. [2023-11-23 21:35:59,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 509 transitions. [2023-11-23 21:35:59,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:59,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 509 transitions. [2023-11-23 21:35:59,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 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) [2023-11-23 21:35:59,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:59,202 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:59,202 INFO L175 Difference]: Start difference. First operand has 164 places, 159 transitions, 338 flow. Second operand 3 states and 509 transitions. [2023-11-23 21:35:59,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 160 transitions, 372 flow [2023-11-23 21:35:59,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 160 transitions, 370 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 21:35:59,207 INFO L231 Difference]: Finished difference. Result has 164 places, 158 transitions, 338 flow [2023-11-23 21:35:59,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=164, PETRI_TRANSITIONS=158} [2023-11-23 21:35:59,208 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -25 predicate places. [2023-11-23 21:35:59,209 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 158 transitions, 338 flow [2023-11-23 21:35:59,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:59,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:59,209 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] [2023-11-23 21:35:59,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-23 21:35:59,210 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:35:59,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:59,210 INFO L85 PathProgramCache]: Analyzing trace with hash -957748646, now seen corresponding path program 1 times [2023-11-23 21:35:59,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:59,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497451850] [2023-11-23 21:35:59,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:59,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:59,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:59,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:59,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497451850] [2023-11-23 21:35:59,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497451850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:59,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:59,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:59,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519081342] [2023-11-23 21:35:59,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:59,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:59,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:59,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:59,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:59,276 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 193 [2023-11-23 21:35:59,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 158 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 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) [2023-11-23 21:35:59,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:59,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 193 [2023-11-23 21:35:59,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:59,397 INFO L124 PetriNetUnfolderBase]: 57/572 cut-off events. [2023-11-23 21:35:59,397 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:35:59,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 727 conditions, 572 events. 57/572 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2631 event pairs, 38 based on Foata normal form. 0/548 useless extension candidates. Maximal degree in co-relation 721. Up to 83 conditions per place. [2023-11-23 21:35:59,404 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/159 dead transitions. [2023-11-23 21:35:59,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 159 transitions, 374 flow [2023-11-23 21:35:59,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:59,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:59,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 507 transitions. [2023-11-23 21:35:59,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8756476683937824 [2023-11-23 21:35:59,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 507 transitions. [2023-11-23 21:35:59,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 507 transitions. [2023-11-23 21:35:59,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:59,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 507 transitions. [2023-11-23 21:35:59,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 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) [2023-11-23 21:35:59,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:59,412 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:59,412 INFO L175 Difference]: Start difference. First operand has 164 places, 158 transitions, 338 flow. Second operand 3 states and 507 transitions. [2023-11-23 21:35:59,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 159 transitions, 374 flow [2023-11-23 21:35:59,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 159 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:59,417 INFO L231 Difference]: Finished difference. Result has 163 places, 157 transitions, 336 flow [2023-11-23 21:35:59,418 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=163, PETRI_TRANSITIONS=157} [2023-11-23 21:35:59,418 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -26 predicate places. [2023-11-23 21:35:59,418 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 157 transitions, 336 flow [2023-11-23 21:35:59,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 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) [2023-11-23 21:35:59,419 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:59,419 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:35:59,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-23 21:35:59,420 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:35:59,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:59,420 INFO L85 PathProgramCache]: Analyzing trace with hash 227043692, now seen corresponding path program 1 times [2023-11-23 21:35:59,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:59,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610856847] [2023-11-23 21:35:59,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:59,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:59,546 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:59,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:59,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610856847] [2023-11-23 21:35:59,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610856847] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:35:59,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608686645] [2023-11-23 21:35:59,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:59,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:35:59,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:35:59,552 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:35:59,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:35:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:59,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:35:59,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:35:59,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:35:59,742 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:35:59,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608686645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:59,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:35:59,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-23 21:35:59,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045455060] [2023-11-23 21:35:59,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:59,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:59,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:59,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:59,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:35:59,750 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 193 [2023-11-23 21:35:59,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 157 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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) [2023-11-23 21:35:59,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:59,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 193 [2023-11-23 21:35:59,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:59,845 INFO L124 PetriNetUnfolderBase]: 36/501 cut-off events. [2023-11-23 21:35:59,845 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:35:59,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 501 events. 36/501 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1944 event pairs, 1 based on Foata normal form. 0/472 useless extension candidates. Maximal degree in co-relation 579. Up to 31 conditions per place. [2023-11-23 21:35:59,853 INFO L140 encePairwiseOnDemand]: 188/193 looper letters, 9 selfloop transitions, 4 changer transitions 0/161 dead transitions. [2023-11-23 21:35:59,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 161 transitions, 370 flow [2023-11-23 21:35:59,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:59,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:59,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 524 transitions. [2023-11-23 21:35:59,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9050086355785838 [2023-11-23 21:35:59,856 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 524 transitions. [2023-11-23 21:35:59,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 524 transitions. [2023-11-23 21:35:59,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:59,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 524 transitions. [2023-11-23 21:35:59,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2023-11-23 21:35:59,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:59,861 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:35:59,861 INFO L175 Difference]: Start difference. First operand has 163 places, 157 transitions, 336 flow. Second operand 3 states and 524 transitions. [2023-11-23 21:35:59,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 161 transitions, 370 flow [2023-11-23 21:35:59,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 161 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:59,867 INFO L231 Difference]: Finished difference. Result has 165 places, 161 transitions, 366 flow [2023-11-23 21:35:59,868 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=366, PETRI_PLACES=165, PETRI_TRANSITIONS=161} [2023-11-23 21:35:59,868 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -24 predicate places. [2023-11-23 21:35:59,869 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 161 transitions, 366 flow [2023-11-23 21:35:59,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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) [2023-11-23 21:35:59,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:59,870 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:35:59,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:36:00,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 21:36:00,085 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:36:00,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:36:00,086 INFO L85 PathProgramCache]: Analyzing trace with hash -675295026, now seen corresponding path program 1 times [2023-11-23 21:36:00,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:36:00,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787925607] [2023-11-23 21:36:00,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:36:00,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:36:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:36:00,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:36:00,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:36:00,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787925607] [2023-11-23 21:36:00,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787925607] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:36:00,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333728513] [2023-11-23 21:36:00,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:36:00,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:36:00,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:36:00,211 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:36:00,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:36:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:36:00,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:36:00,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:36:00,358 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:36:00,358 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:36:00,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333728513] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:36:00,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:36:00,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-23 21:36:00,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3245529] [2023-11-23 21:36:00,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:36:00,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:36:00,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:36:00,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:36:00,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:36:00,363 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 193 [2023-11-23 21:36:00,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 161 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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) [2023-11-23 21:36:00,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:36:00,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 193 [2023-11-23 21:36:00,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:36:00,500 INFO L124 PetriNetUnfolderBase]: 78/637 cut-off events. [2023-11-23 21:36:00,501 INFO L125 PetriNetUnfolderBase]: For 138/151 co-relation queries the response was YES. [2023-11-23 21:36:00,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 908 conditions, 637 events. 78/637 cut-off events. For 138/151 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3072 event pairs, 0 based on Foata normal form. 8/600 useless extension candidates. Maximal degree in co-relation 901. Up to 59 conditions per place. [2023-11-23 21:36:00,511 INFO L140 encePairwiseOnDemand]: 188/193 looper letters, 12 selfloop transitions, 6 changer transitions 0/168 dead transitions. [2023-11-23 21:36:00,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 168 transitions, 430 flow [2023-11-23 21:36:00,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:36:00,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:36:00,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 525 transitions. [2023-11-23 21:36:00,514 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9067357512953368 [2023-11-23 21:36:00,514 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 525 transitions. [2023-11-23 21:36:00,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 525 transitions. [2023-11-23 21:36:00,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:36:00,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 525 transitions. [2023-11-23 21:36:00,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 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) [2023-11-23 21:36:00,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:36:00,518 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-11-23 21:36:00,519 INFO L175 Difference]: Start difference. First operand has 165 places, 161 transitions, 366 flow. Second operand 3 states and 525 transitions. [2023-11-23 21:36:00,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 168 transitions, 430 flow [2023-11-23 21:36:00,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 168 transitions, 418 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:36:00,524 INFO L231 Difference]: Finished difference. Result has 167 places, 167 transitions, 416 flow [2023-11-23 21:36:00,525 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=416, PETRI_PLACES=167, PETRI_TRANSITIONS=167} [2023-11-23 21:36:00,525 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -22 predicate places. [2023-11-23 21:36:00,525 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 167 transitions, 416 flow [2023-11-23 21:36:00,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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) [2023-11-23 21:36:00,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:36:00,526 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:36:00,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:36:00,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:36:00,747 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:36:00,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:36:00,747 INFO L85 PathProgramCache]: Analyzing trace with hash 537321108, now seen corresponding path program 1 times [2023-11-23 21:36:00,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:36:00,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567135218] [2023-11-23 21:36:00,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:36:00,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:36:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:36:00,860 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:36:00,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:36:00,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567135218] [2023-11-23 21:36:00,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567135218] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:36:00,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821004615] [2023-11-23 21:36:00,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:36:00,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:36:00,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:36:00,862 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:36:00,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:36:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:36:01,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:36:01,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:36:01,149 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:36:01,149 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:36:01,237 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:36:01,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821004615] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:36:01,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:36:01,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-23 21:36:01,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373071457] [2023-11-23 21:36:01,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:36:01,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 21:36:01,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:36:01,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 21:36:01,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:36:01,251 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 193 [2023-11-23 21:36:01,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 167 transitions, 416 flow. Second operand has 10 states, 10 states have (on average 166.4) internal successors, (1664), 10 states have internal predecessors, (1664), 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) [2023-11-23 21:36:01,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:36:01,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 193 [2023-11-23 21:36:01,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:36:01,648 INFO L124 PetriNetUnfolderBase]: 242/1346 cut-off events. [2023-11-23 21:36:01,649 INFO L125 PetriNetUnfolderBase]: For 1040/1070 co-relation queries the response was YES. [2023-11-23 21:36:01,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2390 conditions, 1346 events. 242/1346 cut-off events. For 1040/1070 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6858 event pairs, 13 based on Foata normal form. 16/1303 useless extension candidates. Maximal degree in co-relation 2382. Up to 138 conditions per place. [2023-11-23 21:36:01,669 INFO L140 encePairwiseOnDemand]: 187/193 looper letters, 63 selfloop transitions, 9 changer transitions 0/217 dead transitions. [2023-11-23 21:36:01,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 217 transitions, 872 flow [2023-11-23 21:36:01,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 21:36:01,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-23 21:36:01,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1516 transitions. [2023-11-23 21:36:01,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.872769142199194 [2023-11-23 21:36:01,675 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1516 transitions. [2023-11-23 21:36:01,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1516 transitions. [2023-11-23 21:36:01,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:36:01,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1516 transitions. [2023-11-23 21:36:01,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 168.44444444444446) internal successors, (1516), 9 states have internal predecessors, (1516), 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) [2023-11-23 21:36:01,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 193.0) internal successors, (1930), 10 states have internal predecessors, (1930), 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) [2023-11-23 21:36:01,696 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 193.0) internal successors, (1930), 10 states have internal predecessors, (1930), 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) [2023-11-23 21:36:01,697 INFO L175 Difference]: Start difference. First operand has 167 places, 167 transitions, 416 flow. Second operand 9 states and 1516 transitions. [2023-11-23 21:36:01,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 217 transitions, 872 flow [2023-11-23 21:36:01,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 217 transitions, 818 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:36:01,705 INFO L231 Difference]: Finished difference. Result has 176 places, 173 transitions, 454 flow [2023-11-23 21:36:01,705 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=454, PETRI_PLACES=176, PETRI_TRANSITIONS=173} [2023-11-23 21:36:01,706 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, -13 predicate places. [2023-11-23 21:36:01,706 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 173 transitions, 454 flow [2023-11-23 21:36:01,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 166.4) internal successors, (1664), 10 states have internal predecessors, (1664), 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) [2023-11-23 21:36:01,707 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:36:01,707 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:36:01,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-23 21:36:01,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:36:01,929 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:36:01,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:36:01,929 INFO L85 PathProgramCache]: Analyzing trace with hash -72120108, now seen corresponding path program 2 times [2023-11-23 21:36:01,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:36:01,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015660202] [2023-11-23 21:36:01,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:36:01,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:36:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:36:02,212 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:36:02,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:36:02,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015660202] [2023-11-23 21:36:02,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015660202] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:36:02,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436995149] [2023-11-23 21:36:02,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:36:02,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:36:02,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:36:02,215 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:36:02,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:36:02,360 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 21:36:02,360 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:36:02,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:36:02,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:36:02,583 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:36:02,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:36:02,815 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:36:02,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436995149] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:36:02,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:36:02,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-23 21:36:02,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546483091] [2023-11-23 21:36:02,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:36:02,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-23 21:36:02,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:36:02,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-23 21:36:02,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-23 21:36:02,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 193 [2023-11-23 21:36:02,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 173 transitions, 454 flow. Second operand has 18 states, 18 states have (on average 166.22222222222223) internal successors, (2992), 18 states have internal predecessors, (2992), 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) [2023-11-23 21:36:02,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:36:02,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 193 [2023-11-23 21:36:02,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:36:03,712 INFO L124 PetriNetUnfolderBase]: 402/2206 cut-off events. [2023-11-23 21:36:03,713 INFO L125 PetriNetUnfolderBase]: For 1541/1572 co-relation queries the response was YES. [2023-11-23 21:36:03,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3957 conditions, 2206 events. 402/2206 cut-off events. For 1541/1572 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 10925 event pairs, 13 based on Foata normal form. 26/2171 useless extension candidates. Maximal degree in co-relation 3947. Up to 218 conditions per place. [2023-11-23 21:36:03,744 INFO L140 encePairwiseOnDemand]: 187/193 looper letters, 139 selfloop transitions, 21 changer transitions 0/305 dead transitions. [2023-11-23 21:36:03,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 305 transitions, 1554 flow [2023-11-23 21:36:03,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-23 21:36:03,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-23 21:36:03,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3526 transitions. [2023-11-23 21:36:03,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8699728596101653 [2023-11-23 21:36:03,756 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3526 transitions. [2023-11-23 21:36:03,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3526 transitions. [2023-11-23 21:36:03,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:36:03,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3526 transitions. [2023-11-23 21:36:03,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 167.9047619047619) internal successors, (3526), 21 states have internal predecessors, (3526), 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) [2023-11-23 21:36:03,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 193.0) internal successors, (4246), 22 states have internal predecessors, (4246), 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) [2023-11-23 21:36:03,779 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 193.0) internal successors, (4246), 22 states have internal predecessors, (4246), 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) [2023-11-23 21:36:03,780 INFO L175 Difference]: Start difference. First operand has 176 places, 173 transitions, 454 flow. Second operand 21 states and 3526 transitions. [2023-11-23 21:36:03,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 305 transitions, 1554 flow [2023-11-23 21:36:03,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 305 transitions, 1540 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-23 21:36:03,791 INFO L231 Difference]: Finished difference. Result has 200 places, 186 transitions, 578 flow [2023-11-23 21:36:03,791 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=578, PETRI_PLACES=200, PETRI_TRANSITIONS=186} [2023-11-23 21:36:03,792 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, 11 predicate places. [2023-11-23 21:36:03,792 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 186 transitions, 578 flow [2023-11-23 21:36:03,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 166.22222222222223) internal successors, (2992), 18 states have internal predecessors, (2992), 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) [2023-11-23 21:36:03,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:36:03,794 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:36:03,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:36:04,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:36:04,008 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:36:04,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:36:04,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1680919892, now seen corresponding path program 3 times [2023-11-23 21:36:04,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:36:04,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696751053] [2023-11-23 21:36:04,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:36:04,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:36:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:36:04,767 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:36:04,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:36:04,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696751053] [2023-11-23 21:36:04,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696751053] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:36:04,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646122673] [2023-11-23 21:36:04,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 21:36:04,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:36:04,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:36:04,772 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:36:04,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 21:36:04,974 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-11-23 21:36:04,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:36:04,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 21:36:04,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:36:05,346 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:36:05,346 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:36:06,064 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:36:06,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646122673] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:36:06,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:36:06,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2023-11-23 21:36:06,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163436831] [2023-11-23 21:36:06,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:36:06,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-23 21:36:06,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:36:06,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-23 21:36:06,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2023-11-23 21:36:06,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 193 [2023-11-23 21:36:06,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 186 transitions, 578 flow. Second operand has 34 states, 34 states have (on average 166.11764705882354) internal successors, (5648), 34 states have internal predecessors, (5648), 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) [2023-11-23 21:36:06,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:36:06,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 193 [2023-11-23 21:36:06,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:36:08,525 INFO L124 PetriNetUnfolderBase]: 722/3926 cut-off events. [2023-11-23 21:36:08,525 INFO L125 PetriNetUnfolderBase]: For 4579/4610 co-relation queries the response was YES. [2023-11-23 21:36:08,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7508 conditions, 3926 events. 722/3926 cut-off events. For 4579/4610 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 18842 event pairs, 13 based on Foata normal form. 46/3911 useless extension candidates. Maximal degree in co-relation 7493. Up to 378 conditions per place. [2023-11-23 21:36:08,588 INFO L140 encePairwiseOnDemand]: 187/193 looper letters, 291 selfloop transitions, 45 changer transitions 0/481 dead transitions. [2023-11-23 21:36:08,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 481 transitions, 3086 flow [2023-11-23 21:36:08,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-23 21:36:08,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-11-23 21:36:08,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 7546 transitions. [2023-11-23 21:36:08,610 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8688543465745538 [2023-11-23 21:36:08,610 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 7546 transitions. [2023-11-23 21:36:08,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 7546 transitions. [2023-11-23 21:36:08,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:36:08,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 7546 transitions. [2023-11-23 21:36:08,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 167.6888888888889) internal successors, (7546), 45 states have internal predecessors, (7546), 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) [2023-11-23 21:36:08,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 193.0) internal successors, (8878), 46 states have internal predecessors, (8878), 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) [2023-11-23 21:36:08,661 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 193.0) internal successors, (8878), 46 states have internal predecessors, (8878), 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) [2023-11-23 21:36:08,661 INFO L175 Difference]: Start difference. First operand has 200 places, 186 transitions, 578 flow. Second operand 45 states and 7546 transitions. [2023-11-23 21:36:08,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 481 transitions, 3086 flow [2023-11-23 21:36:08,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 481 transitions, 3046 flow, removed 14 selfloop flow, removed 6 redundant places. [2023-11-23 21:36:08,679 INFO L231 Difference]: Finished difference. Result has 247 places, 211 transitions, 856 flow [2023-11-23 21:36:08,680 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=856, PETRI_PLACES=247, PETRI_TRANSITIONS=211} [2023-11-23 21:36:08,680 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, 58 predicate places. [2023-11-23 21:36:08,681 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 211 transitions, 856 flow [2023-11-23 21:36:08,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 166.11764705882354) internal successors, (5648), 34 states have internal predecessors, (5648), 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) [2023-11-23 21:36:08,682 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:36:08,683 INFO L208 CegarLoopForPetriNet]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:36:08,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:36:08,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-23 21:36:08,898 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:36:08,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:36:08,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1885587870, now seen corresponding path program 4 times [2023-11-23 21:36:08,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:36:08,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137987161] [2023-11-23 21:36:08,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:36:08,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:36:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:36:11,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3720 backedges. 0 proven. 3720 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:36:11,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:36:11,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137987161] [2023-11-23 21:36:11,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137987161] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:36:11,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797021970] [2023-11-23 21:36:11,720 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 21:36:11,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:36:11,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:36:11,722 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:36:11,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 21:36:11,988 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 21:36:11,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:36:11,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-23 21:36:12,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:36:12,797 INFO L134 CoverageAnalysis]: Checked inductivity of 3720 backedges. 0 proven. 3720 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:36:12,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:36:13,904 INFO L134 CoverageAnalysis]: Checked inductivity of 3720 backedges. 0 proven. 3720 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:36:13,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797021970] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:36:13,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:36:13,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 35 [2023-11-23 21:36:13,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491499175] [2023-11-23 21:36:13,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:36:13,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-11-23 21:36:13,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:36:13,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-11-23 21:36:13,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=867, Unknown=0, NotChecked=0, Total=1190 [2023-11-23 21:36:13,928 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 193 [2023-11-23 21:36:13,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 211 transitions, 856 flow. Second operand has 35 states, 35 states have (on average 166.11428571428573) internal successors, (5814), 35 states have internal predecessors, (5814), 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) [2023-11-23 21:36:13,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:36:13,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 193 [2023-11-23 21:36:13,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:36:16,583 INFO L124 PetriNetUnfolderBase]: 762/4141 cut-off events. [2023-11-23 21:36:16,583 INFO L125 PetriNetUnfolderBase]: For 5378/5409 co-relation queries the response was YES. [2023-11-23 21:36:16,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8228 conditions, 4141 events. 762/4141 cut-off events. For 5378/5409 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 19827 event pairs, 13 based on Foata normal form. 11/4091 useless extension candidates. Maximal degree in co-relation 8204. Up to 398 conditions per place. [2023-11-23 21:36:16,640 INFO L140 encePairwiseOnDemand]: 187/193 looper letters, 310 selfloop transitions, 48 changer transitions 0/503 dead transitions. [2023-11-23 21:36:16,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 503 transitions, 3386 flow [2023-11-23 21:36:16,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-23 21:36:16,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-11-23 21:36:16,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 8041 transitions. [2023-11-23 21:36:16,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8679835924006909 [2023-11-23 21:36:16,662 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 8041 transitions. [2023-11-23 21:36:16,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 8041 transitions. [2023-11-23 21:36:16,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:36:16,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 8041 transitions. [2023-11-23 21:36:16,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 167.52083333333334) internal successors, (8041), 48 states have internal predecessors, (8041), 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) [2023-11-23 21:36:16,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 193.0) internal successors, (9457), 49 states have internal predecessors, (9457), 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) [2023-11-23 21:36:16,704 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 193.0) internal successors, (9457), 49 states have internal predecessors, (9457), 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) [2023-11-23 21:36:16,704 INFO L175 Difference]: Start difference. First operand has 247 places, 211 transitions, 856 flow. Second operand 48 states and 8041 transitions. [2023-11-23 21:36:16,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 503 transitions, 3386 flow [2023-11-23 21:36:16,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 503 transitions, 3328 flow, removed 11 selfloop flow, removed 18 redundant places. [2023-11-23 21:36:16,734 INFO L231 Difference]: Finished difference. Result has 280 places, 215 transitions, 954 flow [2023-11-23 21:36:16,734 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=954, PETRI_PLACES=280, PETRI_TRANSITIONS=215} [2023-11-23 21:36:16,735 INFO L281 CegarLoopForPetriNet]: 189 programPoint places, 91 predicate places. [2023-11-23 21:36:16,735 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 215 transitions, 954 flow [2023-11-23 21:36:16,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 166.11428571428573) internal successors, (5814), 35 states have internal predecessors, (5814), 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) [2023-11-23 21:36:16,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:36:16,738 INFO L208 CegarLoopForPetriNet]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:36:16,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:36:16,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-23 21:36:16,955 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-23 21:36:16,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:36:16,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1010724122, now seen corresponding path program 5 times [2023-11-23 21:36:16,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:36:16,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144099864] [2023-11-23 21:36:16,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:36:16,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:36:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:36:17,054 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:36:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:36:17,476 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:36:17,476 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:36:17,478 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2023-11-23 21:36:17,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2023-11-23 21:36:17,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2023-11-23 21:36:17,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2023-11-23 21:36:17,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2023-11-23 21:36:17,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2023-11-23 21:36:17,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2023-11-23 21:36:17,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2023-11-23 21:36:17,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2023-11-23 21:36:17,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2023-11-23 21:36:17,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2023-11-23 21:36:17,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2023-11-23 21:36:17,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2023-11-23 21:36:17,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2023-11-23 21:36:17,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2023-11-23 21:36:17,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2023-11-23 21:36:17,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 46 remaining) [2023-11-23 21:36:17,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 46 remaining) [2023-11-23 21:36:17,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2023-11-23 21:36:17,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2023-11-23 21:36:17,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2023-11-23 21:36:17,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2023-11-23 21:36:17,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2023-11-23 21:36:17,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2023-11-23 21:36:17,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2023-11-23 21:36:17,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2023-11-23 21:36:17,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2023-11-23 21:36:17,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2023-11-23 21:36:17,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2023-11-23 21:36:17,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2023-11-23 21:36:17,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2023-11-23 21:36:17,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2023-11-23 21:36:17,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2023-11-23 21:36:17,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2023-11-23 21:36:17,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2023-11-23 21:36:17,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2023-11-23 21:36:17,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2023-11-23 21:36:17,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2023-11-23 21:36:17,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2023-11-23 21:36:17,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2023-11-23 21:36:17,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2023-11-23 21:36:17,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2023-11-23 21:36:17,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2023-11-23 21:36:17,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2023-11-23 21:36:17,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2023-11-23 21:36:17,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2023-11-23 21:36:17,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-23 21:36:17,489 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:36:17,497 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-23 21:36:17,498 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:36:17,862 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-23 21:36:17,865 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre19 could not be translated [2023-11-23 21:36:17,889 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret21 could not be translated [2023-11-23 21:36:17,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:36:17 BasicIcfg [2023-11-23 21:36:17,910 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:36:17,910 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:36:17,910 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:36:17,911 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:36:17,911 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:35:54" (3/4) ... [2023-11-23 21:36:17,913 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:36:17,914 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:36:17,915 INFO L158 Benchmark]: Toolchain (without parser) took 24607.23ms. Allocated memory was 159.4MB in the beginning and 687.9MB in the end (delta: 528.5MB). Free memory was 119.1MB in the beginning and 523.6MB in the end (delta: -404.5MB). Peak memory consumption was 125.4MB. Max. memory is 16.1GB. [2023-11-23 21:36:17,915 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 102.8MB. Free memory was 53.2MB in the beginning and 53.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:36:17,916 INFO L158 Benchmark]: CACSL2BoogieTranslator took 574.84ms. Allocated memory is still 159.4MB. Free memory was 118.6MB in the beginning and 98.6MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 21:36:17,918 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.12ms. Allocated memory is still 159.4MB. Free memory was 98.6MB in the beginning and 96.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:36:17,919 INFO L158 Benchmark]: Boogie Preprocessor took 69.98ms. Allocated memory is still 159.4MB. Free memory was 96.5MB in the beginning and 94.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:36:17,919 INFO L158 Benchmark]: RCFGBuilder took 686.14ms. Allocated memory is still 159.4MB. Free memory was 94.8MB in the beginning and 127.1MB in the end (delta: -32.3MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2023-11-23 21:36:17,919 INFO L158 Benchmark]: TraceAbstraction took 23159.93ms. Allocated memory was 159.4MB in the beginning and 687.9MB in the end (delta: 528.5MB). Free memory was 129.1MB in the beginning and 523.6MB in the end (delta: -394.4MB). Peak memory consumption was 395.1MB. Max. memory is 16.1GB. [2023-11-23 21:36:17,920 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 687.9MB. Free memory is still 523.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:36:17,922 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 102.8MB. Free memory was 53.2MB in the beginning and 53.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 574.84ms. Allocated memory is still 159.4MB. Free memory was 118.6MB in the beginning and 98.6MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.12ms. Allocated memory is still 159.4MB. Free memory was 98.6MB in the beginning and 96.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.98ms. Allocated memory is still 159.4MB. Free memory was 96.5MB in the beginning and 94.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 686.14ms. Allocated memory is still 159.4MB. Free memory was 94.8MB in the beginning and 127.1MB in the end (delta: -32.3MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. * TraceAbstraction took 23159.93ms. Allocated memory was 159.4MB in the beginning and 687.9MB in the end (delta: 528.5MB). Free memory was 129.1MB in the beginning and 523.6MB in the end (delta: -394.4MB). Peak memory consumption was 395.1MB. Max. memory is 16.1GB. * Witness Printer took 4.13ms. Allocated memory is still 687.9MB. Free memory is still 523.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret21 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 725]: Data race detected [2023-11-23 21:36:18,217 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-23 21:36:18,218 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre19 could not be translated [2023-11-23 21:36:18,241 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret21 could not be translated [2023-11-23 21:36:18,496 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-23 21:36:18,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre19 could not be translated [2023-11-23 21:36:18,508 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret21 could not be translated Data race detected The following path leads to a data race: [L683] 0 int i, j; VAL [i=0, j=0] [L686] 0 int p, q; VAL [i=0, j=0, p=0, q=0] [L703] 0 int cur = 1, prev = 0, next = 0; VAL [cur=1, i=0, j=0, next=0, p=0, prev=0, q=0] [L704] 0 int x; VAL [cur=1, i=0, j=0, next=0, p=0, prev=0, q=0, x=0] [L714] 0 pthread_t id1, id2; VAL [\old(argc)=1643, argc=1643, argv={1641:1605}, cur=1, i=0, id1={5:0}, id2={3:0}, j=0, next=0, p=0, prev=0, q=0, x=0] [L716] 0 i = 1 VAL [\old(argc)=1643, argc=1643, argv={1641:1605}, cur=1, i=1, id1={5:0}, id2={3:0}, j=0, next=0, p=0, prev=0, q=0, x=0] [L719] 0 j = 1 VAL [\old(argc)=1643, argc=1643, argv={1641:1605}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, q=0, x=0] [L721] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=1643, arg={0:0}, argc=1643, argv={1641:1605}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, q=0, x=0] [L688] 1 p = 0 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L688] 1 p < 7 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L688] COND TRUE 1 p < 7 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L722] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=1643, arg={0:0}, arg={0:0}, arg={0:0}, argc=1643, argv={1641:1605}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, q=0, x=0] [L723] CALL, EXPR 0 fib() [L706] 0 x = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=0, q=0, x=0] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=0] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=0] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=2, p=0, prev=1, q=0, x=1] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=2, p=0, prev=1, q=0, x=1] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=1] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=3, p=0, prev=1, q=0, x=2] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=3, p=0, prev=2, q=0, x=2] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=2] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=5, p=0, prev=2, q=0, x=3] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=5, p=0, prev=3, q=0, x=3] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=3] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=8, p=0, prev=3, q=0, x=4] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=8, p=0, prev=5, q=0, x=4] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=4] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=13, p=0, prev=5, q=0, x=5] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=13, p=0, prev=8, q=0, x=5] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=5] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=21, p=0, prev=8, q=0, x=6] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=21, p=0, prev=13, q=0, x=6] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=6] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=34, p=0, prev=13, q=0, x=7] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=34, p=0, prev=21, q=0, x=7] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=7] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=55, p=0, prev=21, q=0, x=8] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=55, p=0, prev=34, q=0, x=8] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=8] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=89, p=0, prev=34, q=0, x=9] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=89, p=0, prev=55, q=0, x=9] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=9] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=144, p=0, prev=55, q=0, x=10] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=144, p=0, prev=89, q=0, x=10] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=10] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=233, p=0, prev=89, q=0, x=11] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=233, p=0, prev=144, q=0, x=11] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=11] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=377, p=0, prev=144, q=0, x=12] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=377, p=0, prev=233, q=0, x=12] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=12] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=610, p=0, prev=233, q=0, x=13] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=610, p=0, prev=377, q=0, x=13] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=13] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=987, p=0, prev=377, q=0, x=14] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=987, p=0, prev=610, q=0, x=14] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=14] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=15] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=15] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=15] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=15] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=1597, p=0, prev=610, q=0, x=15] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=1597, p=0, prev=987, q=0, x=15] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=15] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L706] COND FALSE 0 !(x < 16) VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L711] 0 return prev; VAL [\result=987, arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L723] RET, EXPR 0 fib() [L723] 0 int correct = fib(); VAL [\old(argc)=1643, arg={0:0}, arg={0:0}, arg={0:0}, argc=1643, argv={1641:1605}, correct=987, cur=1597, i=1, id1={5:0}, id2={3:0}, j=1, next=1597, p=0, prev=987, q=0, x=16] [L725] 0 i <= correct VAL [\old(argc)=1643, arg={0:0}, arg={0:0}, arg={0:0}, argc=1643, argv={1641:1605}, correct=987, cur=1597, i=1, id1={5:0}, id2={3:0}, j=1, next=1597, p=0, prev=987, q=0, x=16] [L690] EXPR 1 i + j [L690] 1 i = i + j VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=2, j=1, next=1597, p=0, prev=987, q=0, x=16] [L725] 0 i <= correct VAL [\old(argc)=1643, arg={0:0}, arg={0:0}, arg={0:0}, argc=1643, argv={1641:1605}, correct=987, cur=1597, i=2, id1={5:0}, id2={3:0}, j=1, next=1597, p=0, prev=987, q=0, x=16] Now there is a data race on ~i~0 between C: i = i + j [690] and C: i <= correct [725] - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 245 locations, 46 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: 22.6s, OverallIterations: 24, TraceHistogramMax: 17, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1335 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1098 mSDsluCounter, 232 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 139 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1138 IncrementalHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 93 mSDtfsCounter, 1138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2696 GetRequests, 2478 SyntacticMatches, 31 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2620 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=954occurred in iteration=23, InterpolantAutomatonStates: 179, 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: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 4141 NumberOfCodeBlocks, 4141 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 4653 ConstructedInterpolants, 0 QuantifiedInterpolants, 10497 SizeOfPredicates, 52 NumberOfNonLiveVariables, 2628 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 33 InterpolantComputations, 19 PerfectInterpolantSequences, 6/13791 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-23 21:36:18,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee68e26-d4bf-4206-8117-56a708b0a1c4/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE