./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/sssc12_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e88e82-cd16-4267-9216-bfe8adaeb52c/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e88e82-cd16-4267-9216-bfe8adaeb52c/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e88e82-cd16-4267-9216-bfe8adaeb52c/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e88e82-cd16-4267-9216-bfe8adaeb52c/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/sssc12_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e88e82-cd16-4267-9216-bfe8adaeb52c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e88e82-cd16-4267-9216-bfe8adaeb52c/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 726fce4da80b267da781dea82372ef1c43891e7d5d6ac2b3894c611bc25a242b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:45:04,885 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:45:05,005 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e88e82-cd16-4267-9216-bfe8adaeb52c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:45:05,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:45:05,017 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:45:05,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:45:05,057 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:45:05,057 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:45:05,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:45:05,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:45:05,064 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:45:05,065 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:45:05,066 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:45:05,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:45:05,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:45:05,068 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:45:05,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:45:05,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:45:05,070 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:45:05,070 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:45:05,071 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:45:05,072 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:45:05,072 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:45:05,073 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:45:05,073 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:45:05,074 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:45:05,074 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:45:05,075 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:45:05,075 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:45:05,076 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:45:05,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:45:05,078 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:45:05,078 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:45:05,078 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:45:05,078 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:45:05,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:45:05,079 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:45:05,079 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:45:05,080 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:45:05,080 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:45:05,080 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:45:05,080 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_15e88e82-cd16-4267-9216-bfe8adaeb52c/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e88e82-cd16-4267-9216-bfe8adaeb52c/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 726fce4da80b267da781dea82372ef1c43891e7d5d6ac2b3894c611bc25a242b [2023-11-26 10:45:05,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:45:05,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:45:05,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:45:05,426 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:45:05,427 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:45:05,429 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e88e82-cd16-4267-9216-bfe8adaeb52c/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-lit/sssc12_variant.i [2023-11-26 10:45:08,515 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:45:08,924 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:45:08,924 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e88e82-cd16-4267-9216-bfe8adaeb52c/sv-benchmarks/c/pthread-lit/sssc12_variant.i [2023-11-26 10:45:08,948 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e88e82-cd16-4267-9216-bfe8adaeb52c/bin/uautomizer-verify-VRDe98Ueme/data/0e18bafec/1cdee89c2a334088a71247301f1c4e9b/FLAGc870e5176 [2023-11-26 10:45:08,967 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e88e82-cd16-4267-9216-bfe8adaeb52c/bin/uautomizer-verify-VRDe98Ueme/data/0e18bafec/1cdee89c2a334088a71247301f1c4e9b [2023-11-26 10:45:08,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:45:08,974 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:45:08,977 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:08,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:45:08,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:45:08,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:08" (1/1) ... [2023-11-26 10:45:08,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53e08cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:08, skipping insertion in model container [2023-11-26 10:45:08,986 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:08" (1/1) ... [2023-11-26 10:45:09,053 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:45:09,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:09,627 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:45:09,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:09,786 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:45:09,787 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:45:09,795 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:45:09,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:09 WrapperNode [2023-11-26 10:45:09,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:09,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:09,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:45:09,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:45:09,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:09" (1/1) ... [2023-11-26 10:45:09,825 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:09" (1/1) ... [2023-11-26 10:45:09,860 INFO L138 Inliner]: procedures = 275, calls = 26, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 164 [2023-11-26 10:45:09,861 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:09,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:45:09,862 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:45:09,862 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:45:09,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:09" (1/1) ... [2023-11-26 10:45:09,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:09" (1/1) ... [2023-11-26 10:45:09,881 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:09" (1/1) ... [2023-11-26 10:45:09,881 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:09" (1/1) ... [2023-11-26 10:45:09,892 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:09" (1/1) ... [2023-11-26 10:45:09,896 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:09" (1/1) ... [2023-11-26 10:45:09,899 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:09" (1/1) ... [2023-11-26 10:45:09,901 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:09" (1/1) ... [2023-11-26 10:45:09,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:45:09,906 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:45:09,907 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:45:09,907 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:45:09,908 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:09" (1/1) ... [2023-11-26 10:45:09,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:45:09,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e88e82-cd16-4267-9216-bfe8adaeb52c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:09,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e88e82-cd16-4267-9216-bfe8adaeb52c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:09,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e88e82-cd16-4267-9216-bfe8adaeb52c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:45:09,990 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 10:45:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2023-11-26 10:45:09,991 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2023-11-26 10:45:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:45:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:45:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 10:45:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:45:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:45:09,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 10:45:09,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:45:09,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:45:09,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:45:09,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:45:09,995 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 10:45:10,152 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:45:10,154 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:45:10,543 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:45:10,648 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:45:10,648 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 10:45:10,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:10 BoogieIcfgContainer [2023-11-26 10:45:10,650 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:45:10,660 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:45:10,660 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:45:10,663 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:45:10,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:45:08" (1/3) ... [2023-11-26 10:45:10,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e636fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:45:10, skipping insertion in model container [2023-11-26 10:45:10,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:09" (2/3) ... [2023-11-26 10:45:10,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e636fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:45:10, skipping insertion in model container [2023-11-26 10:45:10,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:10" (3/3) ... [2023-11-26 10:45:10,667 INFO L112 eAbstractionObserver]: Analyzing ICFG sssc12_variant.i [2023-11-26 10:45:10,674 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:45:10,684 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:45:10,684 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-26 10:45:10,684 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:45:10,764 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:45:10,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 175 transitions, 354 flow [2023-11-26 10:45:10,885 INFO L124 PetriNetUnfolderBase]: 9/188 cut-off events. [2023-11-26 10:45:10,886 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:45:10,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 188 events. 9/188 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 179 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 107. Up to 4 conditions per place. [2023-11-26 10:45:10,894 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 175 transitions, 354 flow [2023-11-26 10:45:10,901 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 175 transitions, 354 flow [2023-11-26 10:45:10,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:45:10,920 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;@482224b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:45:10,921 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-11-26 10:45:10,931 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:45:10,931 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-26 10:45:10,931 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:45:10,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:10,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:10,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-26 10:45:10,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:10,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1893095273, now seen corresponding path program 1 times [2023-11-26 10:45:10,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:10,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217455280] [2023-11-26 10:45:10,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:10,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:11,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:11,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:11,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217455280] [2023-11-26 10:45:11,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217455280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:11,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:11,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:11,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64667005] [2023-11-26 10:45:11,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:11,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:11,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:11,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:11,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:11,293 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 175 [2023-11-26 10:45:11,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 175 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:11,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:11,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 175 [2023-11-26 10:45:11,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:11,399 INFO L124 PetriNetUnfolderBase]: 3/158 cut-off events. [2023-11-26 10:45:11,400 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 10:45:11,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 158 events. 3/158 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 8/144 useless extension candidates. Maximal degree in co-relation 90. Up to 7 conditions per place. [2023-11-26 10:45:11,403 INFO L140 encePairwiseOnDemand]: 162/175 looper letters, 6 selfloop transitions, 2 changer transitions 1/154 dead transitions. [2023-11-26 10:45:11,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 154 transitions, 328 flow [2023-11-26 10:45:11,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:11,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:11,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 481 transitions. [2023-11-26 10:45:11,420 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9161904761904762 [2023-11-26 10:45:11,421 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 481 transitions. [2023-11-26 10:45:11,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 481 transitions. [2023-11-26 10:45:11,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:11,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 481 transitions. [2023-11-26 10:45:11,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:11,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:11,440 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:11,442 INFO L175 Difference]: Start difference. First operand has 170 places, 175 transitions, 354 flow. Second operand 3 states and 481 transitions. [2023-11-26 10:45:11,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 154 transitions, 328 flow [2023-11-26 10:45:11,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 154 transitions, 328 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:45:11,452 INFO L231 Difference]: Finished difference. Result has 156 places, 153 transitions, 314 flow [2023-11-26 10:45:11,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=156, PETRI_TRANSITIONS=153} [2023-11-26 10:45:11,459 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -14 predicate places. [2023-11-26 10:45:11,459 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 153 transitions, 314 flow [2023-11-26 10:45:11,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:11,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:11,460 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:11,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:45:11,461 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-26 10:45:11,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:11,462 INFO L85 PathProgramCache]: Analyzing trace with hash -457357874, now seen corresponding path program 1 times [2023-11-26 10:45:11,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:11,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640292321] [2023-11-26 10:45:11,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:11,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:11,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:11,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:11,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640292321] [2023-11-26 10:45:11,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640292321] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:11,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:11,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:11,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713024025] [2023-11-26 10:45:11,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:11,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:11,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:11,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:11,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:11,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 175 [2023-11-26 10:45:11,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 153 transitions, 314 flow. Second operand has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:11,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:11,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 175 [2023-11-26 10:45:11,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:11,658 INFO L124 PetriNetUnfolderBase]: 3/156 cut-off events. [2023-11-26 10:45:11,658 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 10:45:11,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 156 events. 3/156 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 149. Up to 11 conditions per place. [2023-11-26 10:45:11,662 INFO L140 encePairwiseOnDemand]: 172/175 looper letters, 10 selfloop transitions, 2 changer transitions 0/152 dead transitions. [2023-11-26 10:45:11,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 152 transitions, 336 flow [2023-11-26 10:45:11,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:11,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:11,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 463 transitions. [2023-11-26 10:45:11,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8819047619047619 [2023-11-26 10:45:11,668 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 463 transitions. [2023-11-26 10:45:11,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 463 transitions. [2023-11-26 10:45:11,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:11,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 463 transitions. [2023-11-26 10:45:11,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:11,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:11,677 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:11,677 INFO L175 Difference]: Start difference. First operand has 156 places, 153 transitions, 314 flow. Second operand 3 states and 463 transitions. [2023-11-26 10:45:11,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 152 transitions, 336 flow [2023-11-26 10:45:11,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 152 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:11,687 INFO L231 Difference]: Finished difference. Result has 154 places, 152 transitions, 312 flow [2023-11-26 10:45:11,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=154, PETRI_TRANSITIONS=152} [2023-11-26 10:45:11,689 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -16 predicate places. [2023-11-26 10:45:11,689 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 152 transitions, 312 flow [2023-11-26 10:45:11,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:11,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:11,695 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] [2023-11-26 10:45:11,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:45:11,697 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-26 10:45:11,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:11,699 INFO L85 PathProgramCache]: Analyzing trace with hash -608003830, now seen corresponding path program 1 times [2023-11-26 10:45:11,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:11,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887859403] [2023-11-26 10:45:11,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:11,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:11,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:11,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:11,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887859403] [2023-11-26 10:45:11,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887859403] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:11,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:11,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:11,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509429944] [2023-11-26 10:45:11,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:11,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:11,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:11,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:11,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:11,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 175 [2023-11-26 10:45:11,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 152 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:11,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:11,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 175 [2023-11-26 10:45:11,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:11,874 INFO L124 PetriNetUnfolderBase]: 3/155 cut-off events. [2023-11-26 10:45:11,875 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 10:45:11,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 155 events. 3/155 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 143. Up to 11 conditions per place. [2023-11-26 10:45:11,876 INFO L140 encePairwiseOnDemand]: 172/175 looper letters, 10 selfloop transitions, 2 changer transitions 0/151 dead transitions. [2023-11-26 10:45:11,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 151 transitions, 334 flow [2023-11-26 10:45:11,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:11,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:11,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 463 transitions. [2023-11-26 10:45:11,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8819047619047619 [2023-11-26 10:45:11,880 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 463 transitions. [2023-11-26 10:45:11,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 463 transitions. [2023-11-26 10:45:11,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:11,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 463 transitions. [2023-11-26 10:45:11,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:11,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:11,886 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:11,886 INFO L175 Difference]: Start difference. First operand has 154 places, 152 transitions, 312 flow. Second operand 3 states and 463 transitions. [2023-11-26 10:45:11,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 151 transitions, 334 flow [2023-11-26 10:45:11,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 151 transitions, 330 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:11,891 INFO L231 Difference]: Finished difference. Result has 153 places, 151 transitions, 310 flow [2023-11-26 10:45:11,892 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=310, PETRI_PLACES=153, PETRI_TRANSITIONS=151} [2023-11-26 10:45:11,893 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -17 predicate places. [2023-11-26 10:45:11,893 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 151 transitions, 310 flow [2023-11-26 10:45:11,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:11,894 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:11,895 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] [2023-11-26 10:45:11,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:45:11,895 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-26 10:45:11,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:11,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1745274053, now seen corresponding path program 1 times [2023-11-26 10:45:11,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:11,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773389674] [2023-11-26 10:45:11,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:11,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:11,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:11,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:11,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773389674] [2023-11-26 10:45:11,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773389674] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:11,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:11,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:11,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532675952] [2023-11-26 10:45:11,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:11,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:11,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:11,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:11,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:12,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 175 [2023-11-26 10:45:12,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 151 transitions, 310 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:12,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:12,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 175 [2023-11-26 10:45:12,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:12,039 INFO L124 PetriNetUnfolderBase]: 3/151 cut-off events. [2023-11-26 10:45:12,039 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 10:45:12,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 151 events. 3/151 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 131. Up to 11 conditions per place. [2023-11-26 10:45:12,041 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 11 selfloop transitions, 1 changer transitions 0/147 dead transitions. [2023-11-26 10:45:12,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 147 transitions, 326 flow [2023-11-26 10:45:12,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:12,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:12,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 460 transitions. [2023-11-26 10:45:12,044 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8761904761904762 [2023-11-26 10:45:12,044 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 460 transitions. [2023-11-26 10:45:12,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 460 transitions. [2023-11-26 10:45:12,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:12,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 460 transitions. [2023-11-26 10:45:12,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:12,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:12,049 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:12,049 INFO L175 Difference]: Start difference. First operand has 153 places, 151 transitions, 310 flow. Second operand 3 states and 460 transitions. [2023-11-26 10:45:12,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 147 transitions, 326 flow [2023-11-26 10:45:12,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 147 transitions, 322 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:12,054 INFO L231 Difference]: Finished difference. Result has 149 places, 147 transitions, 300 flow [2023-11-26 10:45:12,055 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=149, PETRI_TRANSITIONS=147} [2023-11-26 10:45:12,056 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -21 predicate places. [2023-11-26 10:45:12,056 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 147 transitions, 300 flow [2023-11-26 10:45:12,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:12,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:12,057 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:12,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:45:12,058 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-26 10:45:12,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:12,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1467890943, now seen corresponding path program 1 times [2023-11-26 10:45:12,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:12,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496046839] [2023-11-26 10:45:12,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:12,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:12,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:12,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:12,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496046839] [2023-11-26 10:45:12,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496046839] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:12,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:12,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:12,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262574223] [2023-11-26 10:45:12,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:12,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:12,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:12,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:12,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:12,247 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 175 [2023-11-26 10:45:12,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 147 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:12,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:12,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 175 [2023-11-26 10:45:12,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:12,285 INFO L124 PetriNetUnfolderBase]: 3/150 cut-off events. [2023-11-26 10:45:12,285 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 10:45:12,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 150 events. 3/150 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 128. Up to 10 conditions per place. [2023-11-26 10:45:12,286 INFO L140 encePairwiseOnDemand]: 172/175 looper letters, 9 selfloop transitions, 2 changer transitions 0/146 dead transitions. [2023-11-26 10:45:12,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 146 transitions, 320 flow [2023-11-26 10:45:12,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:12,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:12,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 465 transitions. [2023-11-26 10:45:12,292 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8857142857142857 [2023-11-26 10:45:12,292 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 465 transitions. [2023-11-26 10:45:12,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 465 transitions. [2023-11-26 10:45:12,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:12,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 465 transitions. [2023-11-26 10:45:12,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:12,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:12,297 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:12,297 INFO L175 Difference]: Start difference. First operand has 149 places, 147 transitions, 300 flow. Second operand 3 states and 465 transitions. [2023-11-26 10:45:12,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 146 transitions, 320 flow [2023-11-26 10:45:12,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 146 transitions, 319 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:45:12,302 INFO L231 Difference]: Finished difference. Result has 149 places, 146 transitions, 301 flow [2023-11-26 10:45:12,302 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=301, PETRI_PLACES=149, PETRI_TRANSITIONS=146} [2023-11-26 10:45:12,306 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -21 predicate places. [2023-11-26 10:45:12,306 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 146 transitions, 301 flow [2023-11-26 10:45:12,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:12,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:12,307 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:12,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:45:12,308 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-26 10:45:12,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:12,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1868260891, now seen corresponding path program 1 times [2023-11-26 10:45:12,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:12,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128797848] [2023-11-26 10:45:12,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:12,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:12,467 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-26 10:45:12,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:12,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128797848] [2023-11-26 10:45:12,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128797848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:12,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:12,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:45:12,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053137516] [2023-11-26 10:45:12,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:12,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:45:12,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:12,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:45:12,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:45:12,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 175 [2023-11-26 10:45:12,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 146 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 149.2) internal successors, (746), 5 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:12,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:12,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 175 [2023-11-26 10:45:12,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:12,570 INFO L124 PetriNetUnfolderBase]: 2/153 cut-off events. [2023-11-26 10:45:12,570 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 10:45:12,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 153 events. 2/153 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 1/140 useless extension candidates. Maximal degree in co-relation 140. Up to 15 conditions per place. [2023-11-26 10:45:12,571 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 14 selfloop transitions, 0 changer transitions 4/149 dead transitions. [2023-11-26 10:45:12,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 149 transitions, 343 flow [2023-11-26 10:45:12,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:45:12,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 10:45:12,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 754 transitions. [2023-11-26 10:45:12,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8617142857142858 [2023-11-26 10:45:12,575 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 754 transitions. [2023-11-26 10:45:12,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 754 transitions. [2023-11-26 10:45:12,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:12,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 754 transitions. [2023-11-26 10:45:12,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 150.8) internal successors, (754), 5 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:12,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:12,583 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:12,583 INFO L175 Difference]: Start difference. First operand has 149 places, 146 transitions, 301 flow. Second operand 5 states and 754 transitions. [2023-11-26 10:45:12,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 149 transitions, 343 flow [2023-11-26 10:45:12,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 149 transitions, 339 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:12,588 INFO L231 Difference]: Finished difference. Result has 154 places, 145 transitions, 301 flow [2023-11-26 10:45:12,589 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=301, PETRI_PLACES=154, PETRI_TRANSITIONS=145} [2023-11-26 10:45:12,591 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -16 predicate places. [2023-11-26 10:45:12,592 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 145 transitions, 301 flow [2023-11-26 10:45:12,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 149.2) internal successors, (746), 5 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:12,593 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:12,593 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:12,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:45:12,593 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-26 10:45:12,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:12,594 INFO L85 PathProgramCache]: Analyzing trace with hash -678968952, now seen corresponding path program 1 times [2023-11-26 10:45:12,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:12,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809612293] [2023-11-26 10:45:12,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:12,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:12,638 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:12,696 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:12,696 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:45:12,697 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2023-11-26 10:45:12,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2023-11-26 10:45:12,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2023-11-26 10:45:12,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2023-11-26 10:45:12,701 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2023-11-26 10:45:12,701 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2023-11-26 10:45:12,701 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2023-11-26 10:45:12,701 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2023-11-26 10:45:12,701 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2023-11-26 10:45:12,702 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2023-11-26 10:45:12,702 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2023-11-26 10:45:12,702 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2023-11-26 10:45:12,702 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2023-11-26 10:45:12,702 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2023-11-26 10:45:12,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2023-11-26 10:45:12,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2023-11-26 10:45:12,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2023-11-26 10:45:12,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2023-11-26 10:45:12,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2023-11-26 10:45:12,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2023-11-26 10:45:12,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2023-11-26 10:45:12,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2023-11-26 10:45:12,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2023-11-26 10:45:12,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2023-11-26 10:45:12,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2023-11-26 10:45:12,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2023-11-26 10:45:12,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2023-11-26 10:45:12,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2023-11-26 10:45:12,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2023-11-26 10:45:12,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2023-11-26 10:45:12,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2023-11-26 10:45:12,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2023-11-26 10:45:12,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2023-11-26 10:45:12,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2023-11-26 10:45:12,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2023-11-26 10:45:12,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2023-11-26 10:45:12,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2023-11-26 10:45:12,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2023-11-26 10:45:12,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:45:12,708 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:12,715 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 10:45:12,715 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-26 10:45:12,788 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:45:12,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 260 places, 268 transitions, 546 flow [2023-11-26 10:45:12,890 INFO L124 PetriNetUnfolderBase]: 15/296 cut-off events. [2023-11-26 10:45:12,890 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 10:45:12,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 296 events. 15/296 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 611 event pairs, 0 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 199. Up to 6 conditions per place. [2023-11-26 10:45:12,895 INFO L82 GeneralOperation]: Start removeDead. Operand has 260 places, 268 transitions, 546 flow [2023-11-26 10:45:12,901 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 260 places, 268 transitions, 546 flow [2023-11-26 10:45:12,903 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:45:12,904 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;@482224b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:45:12,904 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2023-11-26 10:45:12,907 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:45:12,907 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-26 10:45:12,907 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:45:12,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:12,908 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:12,908 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-26 10:45:12,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:12,909 INFO L85 PathProgramCache]: Analyzing trace with hash 817912565, now seen corresponding path program 1 times [2023-11-26 10:45:12,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:12,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977894744] [2023-11-26 10:45:12,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:12,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:12,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:12,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:12,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977894744] [2023-11-26 10:45:12,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977894744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:12,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:12,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:12,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631760582] [2023-11-26 10:45:12,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:12,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:12,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:12,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:12,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:12,953 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 268 [2023-11-26 10:45:12,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 268 transitions, 546 flow. Second operand has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:12,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:12,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 268 [2023-11-26 10:45:12,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:13,068 INFO L124 PetriNetUnfolderBase]: 17/481 cut-off events. [2023-11-26 10:45:13,068 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-11-26 10:45:13,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 481 events. 17/481 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1851 event pairs, 6 based on Foata normal form. 31/433 useless extension candidates. Maximal degree in co-relation 338. Up to 22 conditions per place. [2023-11-26 10:45:13,075 INFO L140 encePairwiseOnDemand]: 248/268 looper letters, 9 selfloop transitions, 2 changer transitions 1/237 dead transitions. [2023-11-26 10:45:13,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 237 transitions, 506 flow [2023-11-26 10:45:13,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:13,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:13,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 737 transitions. [2023-11-26 10:45:13,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2023-11-26 10:45:13,079 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 737 transitions. [2023-11-26 10:45:13,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 737 transitions. [2023-11-26 10:45:13,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:13,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 737 transitions. [2023-11-26 10:45:13,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,085 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,085 INFO L175 Difference]: Start difference. First operand has 260 places, 268 transitions, 546 flow. Second operand 3 states and 737 transitions. [2023-11-26 10:45:13,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 237 transitions, 506 flow [2023-11-26 10:45:13,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 237 transitions, 506 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:45:13,091 INFO L231 Difference]: Finished difference. Result has 239 places, 236 transitions, 486 flow [2023-11-26 10:45:13,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=486, PETRI_PLACES=239, PETRI_TRANSITIONS=236} [2023-11-26 10:45:13,093 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -21 predicate places. [2023-11-26 10:45:13,093 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 236 transitions, 486 flow [2023-11-26 10:45:13,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:13,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:13,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:45:13,094 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-26 10:45:13,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:13,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1547561010, now seen corresponding path program 1 times [2023-11-26 10:45:13,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:13,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648076418] [2023-11-26 10:45:13,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:13,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:13,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:13,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:13,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648076418] [2023-11-26 10:45:13,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648076418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:13,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:13,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:13,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765712572] [2023-11-26 10:45:13,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:13,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:13,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:13,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:13,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:13,178 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 268 [2023-11-26 10:45:13,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 236 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:13,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 268 [2023-11-26 10:45:13,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:13,343 INFO L124 PetriNetUnfolderBase]: 61/819 cut-off events. [2023-11-26 10:45:13,343 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-11-26 10:45:13,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 952 conditions, 819 events. 61/819 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4605 event pairs, 42 based on Foata normal form. 0/687 useless extension candidates. Maximal degree in co-relation 924. Up to 102 conditions per place. [2023-11-26 10:45:13,354 INFO L140 encePairwiseOnDemand]: 265/268 looper letters, 17 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2023-11-26 10:45:13,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 235 transitions, 522 flow [2023-11-26 10:45:13,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:13,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:13,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 704 transitions. [2023-11-26 10:45:13,357 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8756218905472637 [2023-11-26 10:45:13,357 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 704 transitions. [2023-11-26 10:45:13,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 704 transitions. [2023-11-26 10:45:13,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:13,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 704 transitions. [2023-11-26 10:45:13,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,363 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,364 INFO L175 Difference]: Start difference. First operand has 239 places, 236 transitions, 486 flow. Second operand 3 states and 704 transitions. [2023-11-26 10:45:13,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 235 transitions, 522 flow [2023-11-26 10:45:13,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 235 transitions, 518 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:13,370 INFO L231 Difference]: Finished difference. Result has 237 places, 235 transitions, 484 flow [2023-11-26 10:45:13,371 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=484, PETRI_PLACES=237, PETRI_TRANSITIONS=235} [2023-11-26 10:45:13,372 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -23 predicate places. [2023-11-26 10:45:13,372 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 235 transitions, 484 flow [2023-11-26 10:45:13,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:13,373 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] [2023-11-26 10:45:13,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:45:13,374 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-26 10:45:13,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:13,374 INFO L85 PathProgramCache]: Analyzing trace with hash -526068842, now seen corresponding path program 1 times [2023-11-26 10:45:13,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:13,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181933524] [2023-11-26 10:45:13,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:13,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:13,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:13,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:13,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181933524] [2023-11-26 10:45:13,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181933524] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:13,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:13,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:13,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462553719] [2023-11-26 10:45:13,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:13,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:13,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:13,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:13,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:13,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 268 [2023-11-26 10:45:13,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 235 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:13,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 268 [2023-11-26 10:45:13,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:13,583 INFO L124 PetriNetUnfolderBase]: 25/560 cut-off events. [2023-11-26 10:45:13,583 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-26 10:45:13,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 560 events. 25/560 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2449 event pairs, 12 based on Foata normal form. 0/471 useless extension candidates. Maximal degree in co-relation 588. Up to 39 conditions per place. [2023-11-26 10:45:13,590 INFO L140 encePairwiseOnDemand]: 265/268 looper letters, 14 selfloop transitions, 2 changer transitions 0/234 dead transitions. [2023-11-26 10:45:13,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 234 transitions, 514 flow [2023-11-26 10:45:13,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:13,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:13,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 710 transitions. [2023-11-26 10:45:13,594 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8830845771144279 [2023-11-26 10:45:13,594 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 710 transitions. [2023-11-26 10:45:13,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 710 transitions. [2023-11-26 10:45:13,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:13,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 710 transitions. [2023-11-26 10:45:13,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,600 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,600 INFO L175 Difference]: Start difference. First operand has 237 places, 235 transitions, 484 flow. Second operand 3 states and 710 transitions. [2023-11-26 10:45:13,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 234 transitions, 514 flow [2023-11-26 10:45:13,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 234 transitions, 510 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:13,607 INFO L231 Difference]: Finished difference. Result has 236 places, 234 transitions, 482 flow [2023-11-26 10:45:13,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=482, PETRI_PLACES=236, PETRI_TRANSITIONS=234} [2023-11-26 10:45:13,609 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -24 predicate places. [2023-11-26 10:45:13,609 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 234 transitions, 482 flow [2023-11-26 10:45:13,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:13,610 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] [2023-11-26 10:45:13,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 10:45:13,610 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-26 10:45:13,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:13,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1788792121, now seen corresponding path program 1 times [2023-11-26 10:45:13,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:13,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642230096] [2023-11-26 10:45:13,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:13,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:13,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:13,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:13,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642230096] [2023-11-26 10:45:13,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642230096] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:13,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:13,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:13,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655917250] [2023-11-26 10:45:13,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:13,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:13,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:13,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:13,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:13,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 268 [2023-11-26 10:45:13,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 234 transitions, 482 flow. Second operand has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:13,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 268 [2023-11-26 10:45:13,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:13,799 INFO L124 PetriNetUnfolderBase]: 39/760 cut-off events. [2023-11-26 10:45:13,799 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-26 10:45:13,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 841 conditions, 760 events. 39/760 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4155 event pairs, 20 based on Foata normal form. 0/643 useless extension candidates. Maximal degree in co-relation 800. Up to 56 conditions per place. [2023-11-26 10:45:13,808 INFO L140 encePairwiseOnDemand]: 262/268 looper letters, 16 selfloop transitions, 1 changer transitions 0/229 dead transitions. [2023-11-26 10:45:13,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 229 transitions, 506 flow [2023-11-26 10:45:13,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:13,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:13,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 703 transitions. [2023-11-26 10:45:13,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8743781094527363 [2023-11-26 10:45:13,811 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 703 transitions. [2023-11-26 10:45:13,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 703 transitions. [2023-11-26 10:45:13,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:13,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 703 transitions. [2023-11-26 10:45:13,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,817 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,817 INFO L175 Difference]: Start difference. First operand has 236 places, 234 transitions, 482 flow. Second operand 3 states and 703 transitions. [2023-11-26 10:45:13,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 229 transitions, 506 flow [2023-11-26 10:45:13,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 229 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:13,824 INFO L231 Difference]: Finished difference. Result has 231 places, 229 transitions, 470 flow [2023-11-26 10:45:13,824 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=470, PETRI_PLACES=231, PETRI_TRANSITIONS=229} [2023-11-26 10:45:13,825 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -29 predicate places. [2023-11-26 10:45:13,825 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 229 transitions, 470 flow [2023-11-26 10:45:13,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:13,826 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:13,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 10:45:13,827 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-26 10:45:13,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:13,827 INFO L85 PathProgramCache]: Analyzing trace with hash 822062733, now seen corresponding path program 1 times [2023-11-26 10:45:13,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:13,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230889696] [2023-11-26 10:45:13,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:13,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:13,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:13,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:13,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230889696] [2023-11-26 10:45:13,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230889696] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:13,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:13,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:13,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652635053] [2023-11-26 10:45:13,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:13,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:13,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:13,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:13,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:13,915 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 268 [2023-11-26 10:45:13,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 229 transitions, 470 flow. Second operand has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:13,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:13,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 268 [2023-11-26 10:45:13,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:14,039 INFO L124 PetriNetUnfolderBase]: 47/718 cut-off events. [2023-11-26 10:45:14,039 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-26 10:45:14,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 821 conditions, 718 events. 47/718 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3554 event pairs, 30 based on Foata normal form. 0/610 useless extension candidates. Maximal degree in co-relation 780. Up to 76 conditions per place. [2023-11-26 10:45:14,047 INFO L140 encePairwiseOnDemand]: 265/268 looper letters, 15 selfloop transitions, 2 changer transitions 0/228 dead transitions. [2023-11-26 10:45:14,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 228 transitions, 502 flow [2023-11-26 10:45:14,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:14,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:14,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 708 transitions. [2023-11-26 10:45:14,051 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8805970149253731 [2023-11-26 10:45:14,051 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 708 transitions. [2023-11-26 10:45:14,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 708 transitions. [2023-11-26 10:45:14,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:14,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 708 transitions. [2023-11-26 10:45:14,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:14,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:14,056 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:14,056 INFO L175 Difference]: Start difference. First operand has 231 places, 229 transitions, 470 flow. Second operand 3 states and 708 transitions. [2023-11-26 10:45:14,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 228 transitions, 502 flow [2023-11-26 10:45:14,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 228 transitions, 501 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:45:14,062 INFO L231 Difference]: Finished difference. Result has 231 places, 228 transitions, 471 flow [2023-11-26 10:45:14,062 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=471, PETRI_PLACES=231, PETRI_TRANSITIONS=228} [2023-11-26 10:45:14,063 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -29 predicate places. [2023-11-26 10:45:14,063 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 228 transitions, 471 flow [2023-11-26 10:45:14,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:14,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:14,064 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] [2023-11-26 10:45:14,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 10:45:14,064 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-26 10:45:14,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:14,066 INFO L85 PathProgramCache]: Analyzing trace with hash 804366495, now seen corresponding path program 1 times [2023-11-26 10:45:14,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:14,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584156751] [2023-11-26 10:45:14,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:14,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:14,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:14,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:14,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584156751] [2023-11-26 10:45:14,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584156751] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:14,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:14,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:14,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850324085] [2023-11-26 10:45:14,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:14,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:14,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:14,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:14,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:14,189 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 268 [2023-11-26 10:45:14,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 228 transitions, 471 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:14,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:14,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 268 [2023-11-26 10:45:14,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:14,586 INFO L124 PetriNetUnfolderBase]: 164/2130 cut-off events. [2023-11-26 10:45:14,586 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-11-26 10:45:14,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2460 conditions, 2130 events. 164/2130 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17571 event pairs, 57 based on Foata normal form. 0/1825 useless extension candidates. Maximal degree in co-relation 2419. Up to 204 conditions per place. [2023-11-26 10:45:14,608 INFO L140 encePairwiseOnDemand]: 248/268 looper letters, 32 selfloop transitions, 14 changer transitions 0/247 dead transitions. [2023-11-26 10:45:14,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 247 transitions, 606 flow [2023-11-26 10:45:14,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:14,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:14,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 718 transitions. [2023-11-26 10:45:14,611 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8930348258706468 [2023-11-26 10:45:14,611 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 718 transitions. [2023-11-26 10:45:14,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 718 transitions. [2023-11-26 10:45:14,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:14,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 718 transitions. [2023-11-26 10:45:14,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:14,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:14,617 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:14,617 INFO L175 Difference]: Start difference. First operand has 231 places, 228 transitions, 471 flow. Second operand 3 states and 718 transitions. [2023-11-26 10:45:14,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 247 transitions, 606 flow [2023-11-26 10:45:14,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 247 transitions, 602 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:14,624 INFO L231 Difference]: Finished difference. Result has 233 places, 242 transitions, 591 flow [2023-11-26 10:45:14,624 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=591, PETRI_PLACES=233, PETRI_TRANSITIONS=242} [2023-11-26 10:45:14,625 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -27 predicate places. [2023-11-26 10:45:14,625 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 242 transitions, 591 flow [2023-11-26 10:45:14,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:14,626 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:14,626 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 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] [2023-11-26 10:45:14,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 10:45:14,626 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-26 10:45:14,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:14,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1524110184, now seen corresponding path program 1 times [2023-11-26 10:45:14,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:14,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744846410] [2023-11-26 10:45:14,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:14,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:14,750 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-26 10:45:14,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:14,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744846410] [2023-11-26 10:45:14,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744846410] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:14,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:14,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:45:14,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47335738] [2023-11-26 10:45:14,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:14,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:45:14,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:14,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:45:14,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:45:14,782 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 268 [2023-11-26 10:45:14,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 242 transitions, 591 flow. Second operand has 5 states, 5 states have (on average 231.4) internal successors, (1157), 5 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:14,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:14,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 268 [2023-11-26 10:45:14,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:15,131 INFO L124 PetriNetUnfolderBase]: 99/2023 cut-off events. [2023-11-26 10:45:15,131 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-26 10:45:15,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2296 conditions, 2023 events. 99/2023 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 16517 event pairs, 41 based on Foata normal form. 1/1734 useless extension candidates. Maximal degree in co-relation 2254. Up to 120 conditions per place. [2023-11-26 10:45:15,155 INFO L140 encePairwiseOnDemand]: 264/268 looper letters, 17 selfloop transitions, 0 changer transitions 4/245 dead transitions. [2023-11-26 10:45:15,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 245 transitions, 639 flow [2023-11-26 10:45:15,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:45:15,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 10:45:15,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1167 transitions. [2023-11-26 10:45:15,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8708955223880597 [2023-11-26 10:45:15,159 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1167 transitions. [2023-11-26 10:45:15,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1167 transitions. [2023-11-26 10:45:15,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:15,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1167 transitions. [2023-11-26 10:45:15,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 233.4) internal successors, (1167), 5 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:15,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 268.0) internal successors, (1608), 6 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:15,168 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 268.0) internal successors, (1608), 6 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:15,168 INFO L175 Difference]: Start difference. First operand has 233 places, 242 transitions, 591 flow. Second operand 5 states and 1167 transitions. [2023-11-26 10:45:15,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 245 transitions, 639 flow [2023-11-26 10:45:15,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 245 transitions, 611 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:15,177 INFO L231 Difference]: Finished difference. Result has 238 places, 241 transitions, 567 flow [2023-11-26 10:45:15,178 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=567, PETRI_PLACES=238, PETRI_TRANSITIONS=241} [2023-11-26 10:45:15,178 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -22 predicate places. [2023-11-26 10:45:15,178 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 241 transitions, 567 flow [2023-11-26 10:45:15,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 231.4) internal successors, (1157), 5 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:15,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:15,180 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 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] [2023-11-26 10:45:15,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 10:45:15,180 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-26 10:45:15,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:15,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1650372631, now seen corresponding path program 1 times [2023-11-26 10:45:15,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:15,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10176973] [2023-11-26 10:45:15,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:15,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:15,209 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:15,240 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:15,240 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:45:15,240 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2023-11-26 10:45:15,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2023-11-26 10:45:15,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2023-11-26 10:45:15,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2023-11-26 10:45:15,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2023-11-26 10:45:15,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2023-11-26 10:45:15,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2023-11-26 10:45:15,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2023-11-26 10:45:15,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2023-11-26 10:45:15,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2023-11-26 10:45:15,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2023-11-26 10:45:15,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2023-11-26 10:45:15,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2023-11-26 10:45:15,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2023-11-26 10:45:15,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2023-11-26 10:45:15,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2023-11-26 10:45:15,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2023-11-26 10:45:15,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2023-11-26 10:45:15,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2023-11-26 10:45:15,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2023-11-26 10:45:15,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2023-11-26 10:45:15,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2023-11-26 10:45:15,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2023-11-26 10:45:15,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2023-11-26 10:45:15,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2023-11-26 10:45:15,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2023-11-26 10:45:15,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2023-11-26 10:45:15,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2023-11-26 10:45:15,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2023-11-26 10:45:15,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2023-11-26 10:45:15,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2023-11-26 10:45:15,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2023-11-26 10:45:15,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2023-11-26 10:45:15,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2023-11-26 10:45:15,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2023-11-26 10:45:15,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2023-11-26 10:45:15,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2023-11-26 10:45:15,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2023-11-26 10:45:15,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2023-11-26 10:45:15,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2023-11-26 10:45:15,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2023-11-26 10:45:15,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2023-11-26 10:45:15,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2023-11-26 10:45:15,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2023-11-26 10:45:15,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2023-11-26 10:45:15,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2023-11-26 10:45:15,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2023-11-26 10:45:15,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2023-11-26 10:45:15,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2023-11-26 10:45:15,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2023-11-26 10:45:15,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2023-11-26 10:45:15,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2023-11-26 10:45:15,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2023-11-26 10:45:15,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 10:45:15,251 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:15,252 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 10:45:15,253 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-26 10:45:15,326 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:45:15,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 350 places, 361 transitions, 740 flow [2023-11-26 10:45:15,420 INFO L124 PetriNetUnfolderBase]: 21/404 cut-off events. [2023-11-26 10:45:15,420 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-26 10:45:15,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 404 events. 21/404 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1174 event pairs, 0 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 300. Up to 8 conditions per place. [2023-11-26 10:45:15,428 INFO L82 GeneralOperation]: Start removeDead. Operand has 350 places, 361 transitions, 740 flow [2023-11-26 10:45:15,436 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 350 places, 361 transitions, 740 flow [2023-11-26 10:45:15,437 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:45:15,438 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;@482224b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:45:15,438 INFO L358 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2023-11-26 10:45:15,440 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:45:15,440 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-26 10:45:15,440 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:45:15,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:15,441 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:15,441 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-26 10:45:15,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:15,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1095128514, now seen corresponding path program 1 times [2023-11-26 10:45:15,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:15,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459844407] [2023-11-26 10:45:15,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:15,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:15,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:15,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:15,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459844407] [2023-11-26 10:45:15,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459844407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:15,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:15,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:15,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129225779] [2023-11-26 10:45:15,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:15,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:15,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:15,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:15,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:15,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 361 [2023-11-26 10:45:15,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 361 transitions, 740 flow. Second operand has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:15,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:15,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 361 [2023-11-26 10:45:15,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:15,793 INFO L124 PetriNetUnfolderBase]: 79/1518 cut-off events. [2023-11-26 10:45:15,793 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2023-11-26 10:45:15,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1656 conditions, 1518 events. 79/1518 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 10981 event pairs, 42 based on Foata normal form. 111/1363 useless extension candidates. Maximal degree in co-relation 1094. Up to 85 conditions per place. [2023-11-26 10:45:15,826 INFO L140 encePairwiseOnDemand]: 334/361 looper letters, 12 selfloop transitions, 2 changer transitions 1/320 dead transitions. [2023-11-26 10:45:15,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 320 transitions, 686 flow [2023-11-26 10:45:15,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:15,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:15,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 993 transitions. [2023-11-26 10:45:15,830 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9168975069252078 [2023-11-26 10:45:15,830 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 993 transitions. [2023-11-26 10:45:15,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 993 transitions. [2023-11-26 10:45:15,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:15,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 993 transitions. [2023-11-26 10:45:15,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 331.0) internal successors, (993), 3 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:15,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:15,837 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:15,837 INFO L175 Difference]: Start difference. First operand has 350 places, 361 transitions, 740 flow. Second operand 3 states and 993 transitions. [2023-11-26 10:45:15,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 320 transitions, 686 flow [2023-11-26 10:45:15,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 320 transitions, 684 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-26 10:45:15,846 INFO L231 Difference]: Finished difference. Result has 322 places, 319 transitions, 658 flow [2023-11-26 10:45:15,847 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=658, PETRI_PLACES=322, PETRI_TRANSITIONS=319} [2023-11-26 10:45:15,848 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -28 predicate places. [2023-11-26 10:45:15,848 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 319 transitions, 658 flow [2023-11-26 10:45:15,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:15,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:15,850 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:15,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 10:45:15,850 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-26 10:45:15,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:15,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1230808398, now seen corresponding path program 1 times [2023-11-26 10:45:15,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:15,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307687537] [2023-11-26 10:45:15,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:15,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:15,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:15,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:15,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307687537] [2023-11-26 10:45:15,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307687537] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:15,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:15,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:15,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404878198] [2023-11-26 10:45:15,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:15,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:15,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:15,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:15,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:15,984 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 361 [2023-11-26 10:45:15,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 319 transitions, 658 flow. Second operand has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:15,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:15,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 361 [2023-11-26 10:45:15,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:17,179 INFO L124 PetriNetUnfolderBase]: 763/5752 cut-off events. [2023-11-26 10:45:17,179 INFO L125 PetriNetUnfolderBase]: For 172/172 co-relation queries the response was YES. [2023-11-26 10:45:17,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6964 conditions, 5752 events. 763/5752 cut-off events. For 172/172 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 60889 event pairs, 630 based on Foata normal form. 0/4822 useless extension candidates. Maximal degree in co-relation 6935. Up to 1033 conditions per place. [2023-11-26 10:45:17,280 INFO L140 encePairwiseOnDemand]: 358/361 looper letters, 24 selfloop transitions, 2 changer transitions 0/318 dead transitions. [2023-11-26 10:45:17,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 318 transitions, 708 flow [2023-11-26 10:45:17,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:17,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:17,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 945 transitions. [2023-11-26 10:45:17,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8725761772853186 [2023-11-26 10:45:17,284 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 945 transitions. [2023-11-26 10:45:17,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 945 transitions. [2023-11-26 10:45:17,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:17,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 945 transitions. [2023-11-26 10:45:17,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:17,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:17,293 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:17,293 INFO L175 Difference]: Start difference. First operand has 322 places, 319 transitions, 658 flow. Second operand 3 states and 945 transitions. [2023-11-26 10:45:17,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 318 transitions, 708 flow [2023-11-26 10:45:17,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 318 transitions, 704 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:17,303 INFO L231 Difference]: Finished difference. Result has 320 places, 318 transitions, 656 flow [2023-11-26 10:45:17,304 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=320, PETRI_TRANSITIONS=318} [2023-11-26 10:45:17,305 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -30 predicate places. [2023-11-26 10:45:17,305 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 318 transitions, 656 flow [2023-11-26 10:45:17,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:17,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:17,307 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] [2023-11-26 10:45:17,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 10:45:17,307 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-26 10:45:17,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:17,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1521495009, now seen corresponding path program 1 times [2023-11-26 10:45:17,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:17,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290923583] [2023-11-26 10:45:17,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:17,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:17,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:17,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:17,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290923583] [2023-11-26 10:45:17,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290923583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:17,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:17,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:17,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001394410] [2023-11-26 10:45:17,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:17,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:17,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:17,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:17,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:17,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 361 [2023-11-26 10:45:17,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 318 transitions, 656 flow. Second operand has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:17,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:17,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 361 [2023-11-26 10:45:17,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:17,970 INFO L124 PetriNetUnfolderBase]: 163/2265 cut-off events. [2023-11-26 10:45:17,970 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2023-11-26 10:45:18,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2535 conditions, 2265 events. 163/2265 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 19038 event pairs, 108 based on Foata normal form. 0/1882 useless extension candidates. Maximal degree in co-relation 2501. Up to 199 conditions per place. [2023-11-26 10:45:18,026 INFO L140 encePairwiseOnDemand]: 358/361 looper letters, 18 selfloop transitions, 2 changer transitions 0/317 dead transitions. [2023-11-26 10:45:18,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 317 transitions, 694 flow [2023-11-26 10:45:18,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:18,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:18,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 957 transitions. [2023-11-26 10:45:18,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8836565096952909 [2023-11-26 10:45:18,032 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 957 transitions. [2023-11-26 10:45:18,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 957 transitions. [2023-11-26 10:45:18,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:18,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 957 transitions. [2023-11-26 10:45:18,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.0) internal successors, (957), 3 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:18,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:18,059 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:18,060 INFO L175 Difference]: Start difference. First operand has 320 places, 318 transitions, 656 flow. Second operand 3 states and 957 transitions. [2023-11-26 10:45:18,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 317 transitions, 694 flow [2023-11-26 10:45:18,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 317 transitions, 690 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:18,070 INFO L231 Difference]: Finished difference. Result has 319 places, 317 transitions, 654 flow [2023-11-26 10:45:18,070 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=654, PETRI_PLACES=319, PETRI_TRANSITIONS=317} [2023-11-26 10:45:18,071 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -31 predicate places. [2023-11-26 10:45:18,071 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 317 transitions, 654 flow [2023-11-26 10:45:18,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:18,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:18,073 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] [2023-11-26 10:45:18,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 10:45:18,073 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-26 10:45:18,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:18,074 INFO L85 PathProgramCache]: Analyzing trace with hash 348150032, now seen corresponding path program 1 times [2023-11-26 10:45:18,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:18,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253951484] [2023-11-26 10:45:18,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:18,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:18,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:18,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:18,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253951484] [2023-11-26 10:45:18,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253951484] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:18,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:18,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:18,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541679172] [2023-11-26 10:45:18,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:18,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:18,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:18,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:18,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:18,133 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 361 [2023-11-26 10:45:18,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 317 transitions, 654 flow. Second operand has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:18,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:18,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 361 [2023-11-26 10:45:18,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:18,905 INFO L124 PetriNetUnfolderBase]: 325/4054 cut-off events. [2023-11-26 10:45:18,905 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2023-11-26 10:45:18,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4536 conditions, 4054 events. 325/4054 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 41107 event pairs, 220 based on Foata normal form. 0/3390 useless extension candidates. Maximal degree in co-relation 4494. Up to 381 conditions per place. [2023-11-26 10:45:18,991 INFO L140 encePairwiseOnDemand]: 354/361 looper letters, 21 selfloop transitions, 1 changer transitions 0/311 dead transitions. [2023-11-26 10:45:18,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 311 transitions, 686 flow [2023-11-26 10:45:18,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:18,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:18,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 946 transitions. [2023-11-26 10:45:18,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8734995383194829 [2023-11-26 10:45:18,995 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 946 transitions. [2023-11-26 10:45:18,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 946 transitions. [2023-11-26 10:45:18,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:18,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 946 transitions. [2023-11-26 10:45:18,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:19,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:19,002 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:19,003 INFO L175 Difference]: Start difference. First operand has 319 places, 317 transitions, 654 flow. Second operand 3 states and 946 transitions. [2023-11-26 10:45:19,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 311 transitions, 686 flow [2023-11-26 10:45:19,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 311 transitions, 682 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:19,010 INFO L231 Difference]: Finished difference. Result has 313 places, 311 transitions, 640 flow [2023-11-26 10:45:19,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=640, PETRI_PLACES=313, PETRI_TRANSITIONS=311} [2023-11-26 10:45:19,012 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -37 predicate places. [2023-11-26 10:45:19,012 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 311 transitions, 640 flow [2023-11-26 10:45:19,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:19,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:19,013 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:19,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-26 10:45:19,013 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-26 10:45:19,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:19,014 INFO L85 PathProgramCache]: Analyzing trace with hash -516510762, now seen corresponding path program 1 times [2023-11-26 10:45:19,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:19,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608964317] [2023-11-26 10:45:19,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:19,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:19,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:19,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:19,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:19,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608964317] [2023-11-26 10:45:19,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608964317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:19,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:19,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:19,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344454729] [2023-11-26 10:45:19,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:19,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:19,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:19,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:19,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:19,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 361 [2023-11-26 10:45:19,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 311 transitions, 640 flow. Second operand has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:19,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:19,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 361 [2023-11-26 10:45:19,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:20,025 INFO L124 PetriNetUnfolderBase]: 493/4316 cut-off events. [2023-11-26 10:45:20,025 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-11-26 10:45:20,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5104 conditions, 4316 events. 493/4316 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 41118 event pairs, 390 based on Foata normal form. 0/3625 useless extension candidates. Maximal degree in co-relation 5062. Up to 652 conditions per place. [2023-11-26 10:45:20,090 INFO L140 encePairwiseOnDemand]: 358/361 looper letters, 21 selfloop transitions, 2 changer transitions 0/310 dead transitions. [2023-11-26 10:45:20,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 310 transitions, 684 flow [2023-11-26 10:45:20,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:20,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:20,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 951 transitions. [2023-11-26 10:45:20,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8781163434903048 [2023-11-26 10:45:20,094 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 951 transitions. [2023-11-26 10:45:20,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 951 transitions. [2023-11-26 10:45:20,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:20,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 951 transitions. [2023-11-26 10:45:20,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.0) internal successors, (951), 3 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:20,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:20,101 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:20,101 INFO L175 Difference]: Start difference. First operand has 313 places, 311 transitions, 640 flow. Second operand 3 states and 951 transitions. [2023-11-26 10:45:20,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 310 transitions, 684 flow [2023-11-26 10:45:20,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 310 transitions, 683 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:45:20,109 INFO L231 Difference]: Finished difference. Result has 313 places, 310 transitions, 641 flow [2023-11-26 10:45:20,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=641, PETRI_PLACES=313, PETRI_TRANSITIONS=310} [2023-11-26 10:45:20,111 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -37 predicate places. [2023-11-26 10:45:20,111 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 310 transitions, 641 flow [2023-11-26 10:45:20,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:20,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:20,112 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] [2023-11-26 10:45:20,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-26 10:45:20,112 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-26 10:45:20,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:20,113 INFO L85 PathProgramCache]: Analyzing trace with hash 953950907, now seen corresponding path program 1 times [2023-11-26 10:45:20,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:20,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129940762] [2023-11-26 10:45:20,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:20,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:20,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:20,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:20,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129940762] [2023-11-26 10:45:20,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129940762] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:20,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:20,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:20,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983821805] [2023-11-26 10:45:20,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:20,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:20,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:20,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:20,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:20,209 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 361 [2023-11-26 10:45:20,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 310 transitions, 641 flow. Second operand has 3 states, 3 states have (on average 295.6666666666667) internal successors, (887), 3 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:20,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:20,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 361 [2023-11-26 10:45:20,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:25,341 INFO L124 PetriNetUnfolderBase]: 4171/30338 cut-off events. [2023-11-26 10:45:25,342 INFO L125 PetriNetUnfolderBase]: For 466/466 co-relation queries the response was YES. [2023-11-26 10:45:25,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36797 conditions, 30338 events. 4171/30338 cut-off events. For 466/466 co-relation queries the response was YES. Maximal size of possible extension queue 737. Compared 443446 event pairs, 1667 based on Foata normal form. 0/25726 useless extension candidates. Maximal degree in co-relation 36755. Up to 4132 conditions per place. [2023-11-26 10:45:25,734 INFO L140 encePairwiseOnDemand]: 331/361 looper letters, 48 selfloop transitions, 21 changer transitions 0/339 dead transitions. [2023-11-26 10:45:25,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 339 transitions, 847 flow [2023-11-26 10:45:25,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:25,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:25,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 960 transitions. [2023-11-26 10:45:25,738 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8864265927977839 [2023-11-26 10:45:25,738 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 960 transitions. [2023-11-26 10:45:25,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 960 transitions. [2023-11-26 10:45:25,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:25,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 960 transitions. [2023-11-26 10:45:25,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 320.0) internal successors, (960), 3 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:25,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:25,745 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:25,746 INFO L175 Difference]: Start difference. First operand has 313 places, 310 transitions, 641 flow. Second operand 3 states and 960 transitions. [2023-11-26 10:45:25,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 339 transitions, 847 flow [2023-11-26 10:45:25,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 339 transitions, 843 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:25,754 INFO L231 Difference]: Finished difference. Result has 315 places, 331 transitions, 823 flow [2023-11-26 10:45:25,755 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=823, PETRI_PLACES=315, PETRI_TRANSITIONS=331} [2023-11-26 10:45:25,755 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -35 predicate places. [2023-11-26 10:45:25,756 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 331 transitions, 823 flow [2023-11-26 10:45:25,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.6666666666667) internal successors, (887), 3 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:25,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:25,756 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:25,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-26 10:45:25,757 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thrErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-26 10:45:25,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:25,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1094365633, now seen corresponding path program 1 times [2023-11-26 10:45:25,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:25,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117256507] [2023-11-26 10:45:25,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:25,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:25,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:25,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:25,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117256507] [2023-11-26 10:45:25,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117256507] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:25,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:25,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:45:25,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914407583] [2023-11-26 10:45:25,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:25,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:45:25,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:25,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:45:25,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:45:26,051 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 361 [2023-11-26 10:45:26,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 331 transitions, 823 flow. Second operand has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:26,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:26,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 361 [2023-11-26 10:45:26,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:28,614 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1206] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread3of3ForFork0_release_#t~nondet4#1=|v_thrThread3of3ForFork0_release_#t~nondet4#1_5|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_~cond#1_7|, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread3of3ForFork0_assume_abort_if_not_~cond#1, thrThread3of3ForFork0_release_#t~nondet4#1, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1][164], [44#L1028-3true, 332#L1019true, Black: 373#true, 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, 279#L1019true, 379#true, thrThread2of3ForFork0InUse, 270#L1047-4true, 375#(= |#race~next~0| 0), thrThread3of3ForFork0InUse]) [2023-11-26 10:45:28,615 INFO L294 olderBase$Statistics]: this new event has 132 ancestors and is cut-off event [2023-11-26 10:45:28,615 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-26 10:45:28,615 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-26 10:45:28,615 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-26 10:45:28,730 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([1206] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread3of3ForFork0_release_#t~nondet4#1=|v_thrThread3of3ForFork0_release_#t~nondet4#1_5|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_~cond#1_7|, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread3of3ForFork0_assume_abort_if_not_~cond#1, thrThread3of3ForFork0_release_#t~nondet4#1, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1][164], [44#L1028-3true, 332#L1019true, Black: 373#true, 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, 279#L1019true, 379#true, thrThread2of3ForFork0InUse, 270#L1047-4true, 375#(= |#race~next~0| 0), thrThread3of3ForFork0InUse]) [2023-11-26 10:45:28,730 INFO L294 olderBase$Statistics]: this new event has 132 ancestors and is cut-off event [2023-11-26 10:45:28,730 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-26 10:45:28,730 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-26 10:45:28,730 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-26 10:45:28,730 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-26 10:45:28,925 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1298] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1_7|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread2of3ForFork0_release_#t~nondet4#1=|v_thrThread2of3ForFork0_release_#t~nondet4#1_5|, thrThread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread2of3ForFork0_assume_abort_if_not_~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread2of3ForFork0_release_#t~nondet4#1, thrThread2of3ForFork0_assume_abort_if_not_~cond#1, thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1][126], [44#L1028-3true, 332#L1019true, 373#true, Black: 375#(= |#race~next~0| 0), 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, 379#true, 279#L1019true, thrThread2of3ForFork0InUse, 270#L1047-4true, thrThread3of3ForFork0InUse]) [2023-11-26 10:45:28,925 INFO L294 olderBase$Statistics]: this new event has 132 ancestors and is cut-off event [2023-11-26 10:45:28,925 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-26 10:45:28,926 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-26 10:45:28,926 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-26 10:45:29,979 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1206] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread3of3ForFork0_release_#t~nondet4#1=|v_thrThread3of3ForFork0_release_#t~nondet4#1_5|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_~cond#1_7|, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread3of3ForFork0_assume_abort_if_not_~cond#1, thrThread3of3ForFork0_release_#t~nondet4#1, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1][164], [44#L1028-3true, 332#L1019true, 373#true, Black: 375#(= |#race~next~0| 0), 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, thrThread2of3ForFork0InUse, 279#L1019true, 379#true, 270#L1047-4true, thrThread3of3ForFork0InUse]) [2023-11-26 10:45:29,980 INFO L294 olderBase$Statistics]: this new event has 143 ancestors and is cut-off event [2023-11-26 10:45:29,980 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-26 10:45:29,980 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-26 10:45:29,980 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-26 10:45:32,220 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1298] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1_7|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread2of3ForFork0_release_#t~nondet4#1=|v_thrThread2of3ForFork0_release_#t~nondet4#1_5|, thrThread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread2of3ForFork0_assume_abort_if_not_~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread2of3ForFork0_release_#t~nondet4#1, thrThread2of3ForFork0_assume_abort_if_not_~cond#1, thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1][126], [268#L1032true, 332#L1019true, 373#true, Black: 375#(= |#race~next~0| 0), 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, 379#true, 279#L1019true, thrThread2of3ForFork0InUse, 270#L1047-4true, thrThread3of3ForFork0InUse]) [2023-11-26 10:45:32,220 INFO L294 olderBase$Statistics]: this new event has 178 ancestors and is cut-off event [2023-11-26 10:45:32,221 INFO L297 olderBase$Statistics]: existing Event has 141 ancestors and is cut-off event [2023-11-26 10:45:32,221 INFO L297 olderBase$Statistics]: existing Event has 130 ancestors and is cut-off event [2023-11-26 10:45:32,221 INFO L297 olderBase$Statistics]: existing Event has 141 ancestors and is cut-off event [2023-11-26 10:45:32,376 INFO L124 PetriNetUnfolderBase]: 3553/39103 cut-off events. [2023-11-26 10:45:32,376 INFO L125 PetriNetUnfolderBase]: For 980/983 co-relation queries the response was YES. [2023-11-26 10:45:32,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46625 conditions, 39103 events. 3553/39103 cut-off events. For 980/983 co-relation queries the response was YES. Maximal size of possible extension queue 850. Compared 611323 event pairs, 1741 based on Foata normal form. 59/33513 useless extension candidates. Maximal degree in co-relation 46583. Up to 3237 conditions per place. [2023-11-26 10:45:33,012 INFO L140 encePairwiseOnDemand]: 357/361 looper letters, 27 selfloop transitions, 3 changer transitions 0/344 dead transitions. [2023-11-26 10:45:33,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 344 transitions, 929 flow [2023-11-26 10:45:33,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:45:33,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 10:45:33,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1299 transitions. [2023-11-26 10:45:33,018 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.899584487534626 [2023-11-26 10:45:33,018 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1299 transitions. [2023-11-26 10:45:33,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1299 transitions. [2023-11-26 10:45:33,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:33,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1299 transitions. [2023-11-26 10:45:33,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 324.75) internal successors, (1299), 4 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:33,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 361.0) internal successors, (1805), 5 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:33,027 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 361.0) internal successors, (1805), 5 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:33,027 INFO L175 Difference]: Start difference. First operand has 315 places, 331 transitions, 823 flow. Second operand 4 states and 1299 transitions. [2023-11-26 10:45:33,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 344 transitions, 929 flow [2023-11-26 10:45:33,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 344 transitions, 887 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:33,075 INFO L231 Difference]: Finished difference. Result has 317 places, 331 transitions, 791 flow [2023-11-26 10:45:33,076 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=791, PETRI_PLACES=317, PETRI_TRANSITIONS=331} [2023-11-26 10:45:33,076 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -33 predicate places. [2023-11-26 10:45:33,077 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 331 transitions, 791 flow [2023-11-26 10:45:33,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:33,077 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:33,078 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 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] [2023-11-26 10:45:33,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-26 10:45:33,078 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-26 10:45:33,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:33,078 INFO L85 PathProgramCache]: Analyzing trace with hash 2086250991, now seen corresponding path program 1 times [2023-11-26 10:45:33,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:33,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100786551] [2023-11-26 10:45:33,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:33,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:33,175 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-26 10:45:33,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:33,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100786551] [2023-11-26 10:45:33,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100786551] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:33,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:33,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:45:33,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758362673] [2023-11-26 10:45:33,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:33,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:45:33,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:33,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:45:33,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:45:33,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 361 [2023-11-26 10:45:33,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 331 transitions, 791 flow. Second operand has 5 states, 5 states have (on average 313.6) internal successors, (1568), 5 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:33,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:33,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 361 [2023-11-26 10:45:33,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:35,417 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1206] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread3of3ForFork0_release_#t~nondet4#1=|v_thrThread3of3ForFork0_release_#t~nondet4#1_5|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_~cond#1_7|, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread3of3ForFork0_assume_abort_if_not_~cond#1, thrThread3of3ForFork0_release_#t~nondet4#1, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1][155], [Black: 382#(and (= |thrThread1of3ForFork0_~end~0#1| 0) (= |thrThread1of3ForFork0_~c~0#1| 0)), 194#L1028-6true, 332#L1019true, 385#true, Black: 373#true, 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, thrThread2of3ForFork0InUse, 379#true, 279#L1019true, 270#L1047-4true, thrThread3of3ForFork0InUse]) [2023-11-26 10:45:35,418 INFO L294 olderBase$Statistics]: this new event has 138 ancestors and is cut-off event [2023-11-26 10:45:35,418 INFO L297 olderBase$Statistics]: existing Event has 138 ancestors and is cut-off event [2023-11-26 10:45:35,418 INFO L297 olderBase$Statistics]: existing Event has 138 ancestors and is cut-off event [2023-11-26 10:45:35,418 INFO L297 olderBase$Statistics]: existing Event has 127 ancestors and is cut-off event [2023-11-26 10:45:35,556 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1298] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1_7|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread2of3ForFork0_release_#t~nondet4#1=|v_thrThread2of3ForFork0_release_#t~nondet4#1_5|, thrThread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread2of3ForFork0_assume_abort_if_not_~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread2of3ForFork0_release_#t~nondet4#1, thrThread2of3ForFork0_assume_abort_if_not_~cond#1, thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1][123], [382#(and (= |thrThread1of3ForFork0_~end~0#1| 0) (= |thrThread1of3ForFork0_~c~0#1| 0)), 332#L1019true, 385#true, Black: 375#(= |#race~next~0| 0), 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, 280#L1019true, thrThread2of3ForFork0InUse, 279#L1019true, 270#L1047-4true, thrThread3of3ForFork0InUse]) [2023-11-26 10:45:35,557 INFO L294 olderBase$Statistics]: this new event has 142 ancestors and is cut-off event [2023-11-26 10:45:35,557 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-26 10:45:35,557 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-26 10:45:35,557 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-26 10:45:37,454 INFO L124 PetriNetUnfolderBase]: 2233/24524 cut-off events. [2023-11-26 10:45:37,454 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-11-26 10:45:37,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28569 conditions, 24524 events. 2233/24524 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 360400 event pairs, 1151 based on Foata normal form. 1/20858 useless extension candidates. Maximal degree in co-relation 28525. Up to 2300 conditions per place. [2023-11-26 10:45:37,749 INFO L140 encePairwiseOnDemand]: 357/361 looper letters, 20 selfloop transitions, 0 changer transitions 4/334 dead transitions. [2023-11-26 10:45:37,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 334 transitions, 845 flow [2023-11-26 10:45:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:45:37,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 10:45:37,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1580 transitions. [2023-11-26 10:45:37,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8753462603878116 [2023-11-26 10:45:37,755 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1580 transitions. [2023-11-26 10:45:37,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1580 transitions. [2023-11-26 10:45:37,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:37,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1580 transitions. [2023-11-26 10:45:37,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 316.0) internal successors, (1580), 5 states have internal predecessors, (1580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:37,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:37,766 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:37,767 INFO L175 Difference]: Start difference. First operand has 317 places, 331 transitions, 791 flow. Second operand 5 states and 1580 transitions. [2023-11-26 10:45:37,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 334 transitions, 845 flow [2023-11-26 10:45:37,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 334 transitions, 839 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-26 10:45:37,775 INFO L231 Difference]: Finished difference. Result has 321 places, 330 transitions, 789 flow [2023-11-26 10:45:37,776 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=785, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=789, PETRI_PLACES=321, PETRI_TRANSITIONS=330} [2023-11-26 10:45:37,776 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -29 predicate places. [2023-11-26 10:45:37,777 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 330 transitions, 789 flow [2023-11-26 10:45:37,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 313.6) internal successors, (1568), 5 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:37,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:37,778 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 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] [2023-11-26 10:45:37,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-26 10:45:37,778 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-26 10:45:37,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:37,778 INFO L85 PathProgramCache]: Analyzing trace with hash 63594023, now seen corresponding path program 1 times [2023-11-26 10:45:37,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:37,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114069856] [2023-11-26 10:45:37,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:37,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:37,827 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:37,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:37,854 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:37,854 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:45:37,854 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (67 of 68 remaining) [2023-11-26 10:45:37,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (66 of 68 remaining) [2023-11-26 10:45:37,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (65 of 68 remaining) [2023-11-26 10:45:37,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (64 of 68 remaining) [2023-11-26 10:45:37,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (63 of 68 remaining) [2023-11-26 10:45:37,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (62 of 68 remaining) [2023-11-26 10:45:37,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (61 of 68 remaining) [2023-11-26 10:45:37,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (60 of 68 remaining) [2023-11-26 10:45:37,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (59 of 68 remaining) [2023-11-26 10:45:37,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (58 of 68 remaining) [2023-11-26 10:45:37,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (57 of 68 remaining) [2023-11-26 10:45:37,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (56 of 68 remaining) [2023-11-26 10:45:37,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (55 of 68 remaining) [2023-11-26 10:45:37,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (54 of 68 remaining) [2023-11-26 10:45:37,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (53 of 68 remaining) [2023-11-26 10:45:37,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (52 of 68 remaining) [2023-11-26 10:45:37,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (51 of 68 remaining) [2023-11-26 10:45:37,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (50 of 68 remaining) [2023-11-26 10:45:37,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (49 of 68 remaining) [2023-11-26 10:45:37,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (48 of 68 remaining) [2023-11-26 10:45:37,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (47 of 68 remaining) [2023-11-26 10:45:37,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (46 of 68 remaining) [2023-11-26 10:45:37,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (45 of 68 remaining) [2023-11-26 10:45:37,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (44 of 68 remaining) [2023-11-26 10:45:37,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (43 of 68 remaining) [2023-11-26 10:45:37,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (42 of 68 remaining) [2023-11-26 10:45:37,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (41 of 68 remaining) [2023-11-26 10:45:37,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (40 of 68 remaining) [2023-11-26 10:45:37,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (39 of 68 remaining) [2023-11-26 10:45:37,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (38 of 68 remaining) [2023-11-26 10:45:37,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (37 of 68 remaining) [2023-11-26 10:45:37,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (36 of 68 remaining) [2023-11-26 10:45:37,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (35 of 68 remaining) [2023-11-26 10:45:37,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (34 of 68 remaining) [2023-11-26 10:45:37,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (33 of 68 remaining) [2023-11-26 10:45:37,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (32 of 68 remaining) [2023-11-26 10:45:37,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (31 of 68 remaining) [2023-11-26 10:45:37,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (30 of 68 remaining) [2023-11-26 10:45:37,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (29 of 68 remaining) [2023-11-26 10:45:37,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (28 of 68 remaining) [2023-11-26 10:45:37,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (27 of 68 remaining) [2023-11-26 10:45:37,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (26 of 68 remaining) [2023-11-26 10:45:37,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (25 of 68 remaining) [2023-11-26 10:45:37,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (24 of 68 remaining) [2023-11-26 10:45:37,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (23 of 68 remaining) [2023-11-26 10:45:37,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (22 of 68 remaining) [2023-11-26 10:45:37,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (21 of 68 remaining) [2023-11-26 10:45:37,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (20 of 68 remaining) [2023-11-26 10:45:37,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (19 of 68 remaining) [2023-11-26 10:45:37,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (18 of 68 remaining) [2023-11-26 10:45:37,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (17 of 68 remaining) [2023-11-26 10:45:37,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (16 of 68 remaining) [2023-11-26 10:45:37,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (15 of 68 remaining) [2023-11-26 10:45:37,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (14 of 68 remaining) [2023-11-26 10:45:37,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (13 of 68 remaining) [2023-11-26 10:45:37,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (12 of 68 remaining) [2023-11-26 10:45:37,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (11 of 68 remaining) [2023-11-26 10:45:37,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 68 remaining) [2023-11-26 10:45:37,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (9 of 68 remaining) [2023-11-26 10:45:37,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (8 of 68 remaining) [2023-11-26 10:45:37,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (7 of 68 remaining) [2023-11-26 10:45:37,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (6 of 68 remaining) [2023-11-26 10:45:37,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (5 of 68 remaining) [2023-11-26 10:45:37,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (4 of 68 remaining) [2023-11-26 10:45:37,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (3 of 68 remaining) [2023-11-26 10:45:37,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (2 of 68 remaining) [2023-11-26 10:45:37,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (1 of 68 remaining) [2023-11-26 10:45:37,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (0 of 68 remaining) [2023-11-26 10:45:37,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-26 10:45:37,867 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:37,867 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 10:45:37,868 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-26 10:45:37,946 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:45:37,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 440 places, 454 transitions, 936 flow [2023-11-26 10:45:38,095 INFO L124 PetriNetUnfolderBase]: 27/512 cut-off events. [2023-11-26 10:45:38,095 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-26 10:45:38,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 512 events. 27/512 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1815 event pairs, 0 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 412. Up to 10 conditions per place. [2023-11-26 10:45:38,107 INFO L82 GeneralOperation]: Start removeDead. Operand has 440 places, 454 transitions, 936 flow [2023-11-26 10:45:38,116 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 440 places, 454 transitions, 936 flow [2023-11-26 10:45:38,118 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:45:38,118 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;@482224b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:45:38,118 INFO L358 AbstractCegarLoop]: Starting to check reachability of 83 error locations. [2023-11-26 10:45:38,120 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:45:38,120 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-26 10:45:38,120 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:45:38,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:38,121 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:38,121 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-26 10:45:38,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:38,122 INFO L85 PathProgramCache]: Analyzing trace with hash 448939332, now seen corresponding path program 1 times [2023-11-26 10:45:38,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:38,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261498195] [2023-11-26 10:45:38,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:38,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:38,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:38,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:38,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261498195] [2023-11-26 10:45:38,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261498195] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:38,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:38,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:38,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502390447] [2023-11-26 10:45:38,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:38,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:38,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:38,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:38,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:38,162 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 454 [2023-11-26 10:45:38,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 454 transitions, 936 flow. Second operand has 3 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:38,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:38,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 454 [2023-11-26 10:45:38,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:39,462 INFO L124 PetriNetUnfolderBase]: 321/4733 cut-off events. [2023-11-26 10:45:39,463 INFO L125 PetriNetUnfolderBase]: For 340/340 co-relation queries the response was YES. [2023-11-26 10:45:39,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5250 conditions, 4733 events. 321/4733 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 48586 event pairs, 204 based on Foata normal form. 388/4280 useless extension candidates. Maximal degree in co-relation 3422. Up to 328 conditions per place. [2023-11-26 10:45:39,588 INFO L140 encePairwiseOnDemand]: 420/454 looper letters, 15 selfloop transitions, 2 changer transitions 1/403 dead transitions. [2023-11-26 10:45:39,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 403 transitions, 868 flow [2023-11-26 10:45:39,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:39,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:39,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1249 transitions. [2023-11-26 10:45:39,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9170337738619677 [2023-11-26 10:45:39,594 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1249 transitions. [2023-11-26 10:45:39,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1249 transitions. [2023-11-26 10:45:39,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:39,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1249 transitions. [2023-11-26 10:45:39,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:39,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:39,603 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:39,604 INFO L175 Difference]: Start difference. First operand has 440 places, 454 transitions, 936 flow. Second operand 3 states and 1249 transitions. [2023-11-26 10:45:39,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 403 transitions, 868 flow [2023-11-26 10:45:39,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 403 transitions, 862 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-11-26 10:45:39,612 INFO L231 Difference]: Finished difference. Result has 405 places, 402 transitions, 830 flow [2023-11-26 10:45:39,613 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=830, PETRI_PLACES=405, PETRI_TRANSITIONS=402} [2023-11-26 10:45:39,614 INFO L281 CegarLoopForPetriNet]: 440 programPoint places, -35 predicate places. [2023-11-26 10:45:39,614 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 402 transitions, 830 flow [2023-11-26 10:45:39,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:39,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:39,615 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:39,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-26 10:45:39,615 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-26 10:45:39,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:39,616 INFO L85 PathProgramCache]: Analyzing trace with hash -712184242, now seen corresponding path program 1 times [2023-11-26 10:45:39,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:39,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729365599] [2023-11-26 10:45:39,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:39,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:39,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:39,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:39,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729365599] [2023-11-26 10:45:39,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729365599] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:39,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:39,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:39,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491588155] [2023-11-26 10:45:39,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:39,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:39,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:39,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:39,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:39,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 454 [2023-11-26 10:45:39,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 402 transitions, 830 flow. Second operand has 3 states, 3 states have (on average 385.3333333333333) internal successors, (1156), 3 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:39,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:39,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 454 [2023-11-26 10:45:39,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:47,613 INFO L124 PetriNetUnfolderBase]: 7737/42339 cut-off events. [2023-11-26 10:45:47,613 INFO L125 PetriNetUnfolderBase]: For 1204/1204 co-relation queries the response was YES. [2023-11-26 10:45:48,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53156 conditions, 42339 events. 7737/42339 cut-off events. For 1204/1204 co-relation queries the response was YES. Maximal size of possible extension queue 1063. Compared 620494 event pairs, 6804 based on Foata normal form. 0/35809 useless extension candidates. Maximal degree in co-relation 53126. Up to 9608 conditions per place. [2023-11-26 10:45:48,656 INFO L140 encePairwiseOnDemand]: 451/454 looper letters, 31 selfloop transitions, 2 changer transitions 0/401 dead transitions. [2023-11-26 10:45:48,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 401 transitions, 894 flow [2023-11-26 10:45:48,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:48,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:48,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1186 transitions. [2023-11-26 10:45:48,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8707782672540382 [2023-11-26 10:45:48,661 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1186 transitions. [2023-11-26 10:45:48,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1186 transitions. [2023-11-26 10:45:48,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:48,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1186 transitions. [2023-11-26 10:45:48,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 395.3333333333333) internal successors, (1186), 3 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:48,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:48,672 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:48,672 INFO L175 Difference]: Start difference. First operand has 405 places, 402 transitions, 830 flow. Second operand 3 states and 1186 transitions. [2023-11-26 10:45:48,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 401 transitions, 894 flow [2023-11-26 10:45:48,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 401 transitions, 890 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:48,684 INFO L231 Difference]: Finished difference. Result has 403 places, 401 transitions, 828 flow [2023-11-26 10:45:48,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=828, PETRI_PLACES=403, PETRI_TRANSITIONS=401} [2023-11-26 10:45:48,685 INFO L281 CegarLoopForPetriNet]: 440 programPoint places, -37 predicate places. [2023-11-26 10:45:48,686 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 401 transitions, 828 flow [2023-11-26 10:45:48,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 385.3333333333333) internal successors, (1156), 3 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:48,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:48,687 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] [2023-11-26 10:45:48,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-26 10:45:48,687 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-26 10:45:48,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:48,688 INFO L85 PathProgramCache]: Analyzing trace with hash 700684965, now seen corresponding path program 1 times [2023-11-26 10:45:48,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:48,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047637311] [2023-11-26 10:45:48,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:48,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:48,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:48,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:48,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047637311] [2023-11-26 10:45:48,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047637311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:48,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:48,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:48,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680297152] [2023-11-26 10:45:48,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:48,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:48,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:48,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:48,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:48,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 454 [2023-11-26 10:45:48,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 401 transitions, 828 flow. Second operand has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:48,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:48,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 454 [2023-11-26 10:45:48,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:51,049 INFO L124 PetriNetUnfolderBase]: 909/9314 cut-off events. [2023-11-26 10:45:51,049 INFO L125 PetriNetUnfolderBase]: For 259/259 co-relation queries the response was YES. [2023-11-26 10:45:51,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10609 conditions, 9314 events. 909/9314 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 111073 event pairs, 684 based on Foata normal form. 0/7741 useless extension candidates. Maximal degree in co-relation 10574. Up to 1031 conditions per place. [2023-11-26 10:45:51,315 INFO L140 encePairwiseOnDemand]: 451/454 looper letters, 22 selfloop transitions, 2 changer transitions 0/400 dead transitions. [2023-11-26 10:45:51,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 400 transitions, 874 flow [2023-11-26 10:45:51,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:51,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:51,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1204 transitions. [2023-11-26 10:45:51,321 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8839941262848752 [2023-11-26 10:45:51,321 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1204 transitions. [2023-11-26 10:45:51,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1204 transitions. [2023-11-26 10:45:51,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:51,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1204 transitions. [2023-11-26 10:45:51,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:51,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:51,331 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:51,331 INFO L175 Difference]: Start difference. First operand has 403 places, 401 transitions, 828 flow. Second operand 3 states and 1204 transitions. [2023-11-26 10:45:51,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 400 transitions, 874 flow [2023-11-26 10:45:51,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 400 transitions, 870 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:51,343 INFO L231 Difference]: Finished difference. Result has 402 places, 400 transitions, 826 flow [2023-11-26 10:45:51,344 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=826, PETRI_PLACES=402, PETRI_TRANSITIONS=400} [2023-11-26 10:45:51,344 INFO L281 CegarLoopForPetriNet]: 440 programPoint places, -38 predicate places. [2023-11-26 10:45:51,345 INFO L495 AbstractCegarLoop]: Abstraction has has 402 places, 400 transitions, 826 flow [2023-11-26 10:45:51,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:51,345 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:51,346 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] [2023-11-26 10:45:51,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-26 10:45:51,346 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-26 10:45:51,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:51,347 INFO L85 PathProgramCache]: Analyzing trace with hash 370585110, now seen corresponding path program 1 times [2023-11-26 10:45:51,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:51,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611558838] [2023-11-26 10:45:51,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:51,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:51,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:51,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:51,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611558838] [2023-11-26 10:45:51,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611558838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:51,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:51,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:51,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914620081] [2023-11-26 10:45:51,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:51,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:51,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:51,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:51,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:51,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 454 [2023-11-26 10:45:51,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 400 transitions, 826 flow. Second operand has 3 states, 3 states have (on average 386.0) internal successors, (1158), 3 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:51,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:51,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 454 [2023-11-26 10:45:51,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:55,774 INFO L124 PetriNetUnfolderBase]: 2261/21173 cut-off events. [2023-11-26 10:45:55,774 INFO L125 PetriNetUnfolderBase]: For 473/473 co-relation queries the response was YES. [2023-11-26 10:45:56,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24156 conditions, 21173 events. 2261/21173 cut-off events. For 473/473 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 298465 event pairs, 1720 based on Foata normal form. 0/17737 useless extension candidates. Maximal degree in co-relation 24113. Up to 2506 conditions per place. [2023-11-26 10:45:56,302 INFO L140 encePairwiseOnDemand]: 446/454 looper letters, 26 selfloop transitions, 1 changer transitions 0/393 dead transitions. [2023-11-26 10:45:56,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 393 transitions, 866 flow [2023-11-26 10:45:56,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:56,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:56,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1189 transitions. [2023-11-26 10:45:56,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8729809104258444 [2023-11-26 10:45:56,308 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1189 transitions. [2023-11-26 10:45:56,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1189 transitions. [2023-11-26 10:45:56,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:56,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1189 transitions. [2023-11-26 10:45:56,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.3333333333333) internal successors, (1189), 3 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:56,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:56,319 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:56,319 INFO L175 Difference]: Start difference. First operand has 402 places, 400 transitions, 826 flow. Second operand 3 states and 1189 transitions. [2023-11-26 10:45:56,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 393 transitions, 866 flow [2023-11-26 10:45:56,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 393 transitions, 862 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:56,331 INFO L231 Difference]: Finished difference. Result has 395 places, 393 transitions, 810 flow [2023-11-26 10:45:56,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=810, PETRI_PLACES=395, PETRI_TRANSITIONS=393} [2023-11-26 10:45:56,333 INFO L281 CegarLoopForPetriNet]: 440 programPoint places, -45 predicate places. [2023-11-26 10:45:56,333 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 393 transitions, 810 flow [2023-11-26 10:45:56,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 386.0) internal successors, (1158), 3 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:56,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:56,334 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:56,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-26 10:45:56,335 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-26 10:45:56,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:56,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1188644132, now seen corresponding path program 1 times [2023-11-26 10:45:56,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:56,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087694592] [2023-11-26 10:45:56,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:56,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:56,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:56,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:56,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087694592] [2023-11-26 10:45:56,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087694592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:56,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:56,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:56,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187409455] [2023-11-26 10:45:56,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:56,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:56,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:56,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:56,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:56,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 454 [2023-11-26 10:45:56,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 393 transitions, 810 flow. Second operand has 3 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:56,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:56,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 454 [2023-11-26 10:45:56,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand