./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_a7db94b2-daa7-4f55-91e2-fb7c821938ca/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7db94b2-daa7-4f55-91e2-fb7c821938ca/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7db94b2-daa7-4f55-91e2-fb7c821938ca/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7db94b2-daa7-4f55-91e2-fb7c821938ca/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7db94b2-daa7-4f55-91e2-fb7c821938ca/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7db94b2-daa7-4f55-91e2-fb7c821938ca/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a18ee378e36a8b6ec16846ba26aa7ebab799f55311c04bb5b266d3aa0d0986d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:08:27,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:08:27,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:08:27,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:08:27,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:08:27,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:08:27,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:08:27,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:08:27,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:08:27,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:08:28,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:08:28,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:08:28,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:08:28,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:08:28,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:08:28,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:08:28,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:08:28,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:08:28,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:08:28,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:08:28,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:08:28,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:08:28,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:08:28,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:08:28,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:08:28,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:08:28,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:08:28,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:08:28,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:08:28,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:08:28,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:08:28,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:08:28,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:08:28,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:08:28,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:08:28,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:08:28,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:08:28,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:08:28,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:08:28,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:08:28,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:08:28,074 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7db94b2-daa7-4f55-91e2-fb7c821938ca/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:08:28,117 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:08:28,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:08:28,123 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:08:28,124 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:08:28,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:08:28,125 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:08:28,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:08:28,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:08:28,127 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:08:28,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:08:28,129 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:08:28,129 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:08:28,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:08:28,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:08:28,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:08:28,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:08:28,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:08:28,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:08:28,132 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:08:28,132 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:08:28,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:08:28,133 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:08:28,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:08:28,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:08:28,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:08:28,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:08:28,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:08:28,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:08:28,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:08:28,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:08:28,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:08:28,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:08:28,139 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:08:28,140 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:08:28,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:08:28,140 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_a7db94b2-daa7-4f55-91e2-fb7c821938ca/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7db94b2-daa7-4f55-91e2-fb7c821938ca/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a18ee378e36a8b6ec16846ba26aa7ebab799f55311c04bb5b266d3aa0d0986d [2022-11-02 21:08:28,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:08:28,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:08:28,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:08:28,589 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:08:28,590 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:08:28,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7db94b2-daa7-4f55-91e2-fb7c821938ca/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c [2022-11-02 21:08:28,703 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7db94b2-daa7-4f55-91e2-fb7c821938ca/bin/uautomizer-Dbtcem3rbc/data/d749b06bf/00d69c7c14f74886b666a6ae3f9f0ce0/FLAG6c2b68c77 [2022-11-02 21:08:29,244 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:08:29,245 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7db94b2-daa7-4f55-91e2-fb7c821938ca/sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c [2022-11-02 21:08:29,262 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7db94b2-daa7-4f55-91e2-fb7c821938ca/bin/uautomizer-Dbtcem3rbc/data/d749b06bf/00d69c7c14f74886b666a6ae3f9f0ce0/FLAG6c2b68c77 [2022-11-02 21:08:29,560 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7db94b2-daa7-4f55-91e2-fb7c821938ca/bin/uautomizer-Dbtcem3rbc/data/d749b06bf/00d69c7c14f74886b666a6ae3f9f0ce0 [2022-11-02 21:08:29,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:08:29,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:08:29,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:08:29,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:08:29,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:08:29,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:08:29" (1/1) ... [2022-11-02 21:08:29,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66cabd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:29, skipping insertion in model container [2022-11-02 21:08:29,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:08:29" (1/1) ... [2022-11-02 21:08:29,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:08:29,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:08:30,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7db94b2-daa7-4f55-91e2-fb7c821938ca/sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c[4788,4801] [2022-11-02 21:08:30,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:08:30,039 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:08:30,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7db94b2-daa7-4f55-91e2-fb7c821938ca/sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c[4788,4801] [2022-11-02 21:08:30,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:08:30,131 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:08:30,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:30 WrapperNode [2022-11-02 21:08:30,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:08:30,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:08:30,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:08:30,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:08:30,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:30" (1/1) ... [2022-11-02 21:08:30,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:30" (1/1) ... [2022-11-02 21:08:30,221 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 850 [2022-11-02 21:08:30,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:08:30,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:08:30,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:08:30,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:08:30,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:30" (1/1) ... [2022-11-02 21:08:30,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:30" (1/1) ... [2022-11-02 21:08:30,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:30" (1/1) ... [2022-11-02 21:08:30,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:30" (1/1) ... [2022-11-02 21:08:30,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:30" (1/1) ... [2022-11-02 21:08:30,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:30" (1/1) ... [2022-11-02 21:08:30,336 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:30" (1/1) ... [2022-11-02 21:08:30,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:30" (1/1) ... [2022-11-02 21:08:30,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:08:30,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:08:30,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:08:30,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:08:30,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:30" (1/1) ... [2022-11-02 21:08:30,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:08:30,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7db94b2-daa7-4f55-91e2-fb7c821938ca/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:30,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7db94b2-daa7-4f55-91e2-fb7c821938ca/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:30,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7db94b2-daa7-4f55-91e2-fb7c821938ca/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:08:30,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:08:30,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:08:30,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:08:30,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:08:30,462 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 21:08:30,462 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 21:08:30,463 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 21:08:30,463 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 21:08:30,463 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 21:08:30,463 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 21:08:30,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:08:30,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 21:08:30,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:08:30,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:08:30,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:08:30,466 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 21:08:30,640 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:08:30,642 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:08:32,229 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:08:32,257 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:08:32,257 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-02 21:08:32,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:08:32 BoogieIcfgContainer [2022-11-02 21:08:32,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:08:32,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:08:32,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:08:32,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:08:32,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:08:29" (1/3) ... [2022-11-02 21:08:32,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da7d7f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:08:32, skipping insertion in model container [2022-11-02 21:08:32,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:30" (2/3) ... [2022-11-02 21:08:32,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da7d7f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:08:32, skipping insertion in model container [2022-11-02 21:08:32,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:08:32" (3/3) ... [2022-11-02 21:08:32,276 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-trans.wvr.c [2022-11-02 21:08:32,287 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:08:32,300 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:08:32,301 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 152 error locations. [2022-11-02 21:08:32,301 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:08:32,554 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-02 21:08:32,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1063 places, 1111 transitions, 2246 flow [2022-11-02 21:08:33,642 INFO L130 PetriNetUnfolder]: 58/1108 cut-off events. [2022-11-02 21:08:33,642 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 21:08:33,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 1108 events. 58/1108 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3912 event pairs, 0 based on Foata normal form. 0/898 useless extension candidates. Maximal degree in co-relation 851. Up to 2 conditions per place. [2022-11-02 21:08:33,717 INFO L82 GeneralOperation]: Start removeDead. Operand has 1063 places, 1111 transitions, 2246 flow [2022-11-02 21:08:33,775 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1038 places, 1084 transitions, 2186 flow [2022-11-02 21:08:33,796 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:08:33,807 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@76d114b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:08:33,807 INFO L358 AbstractCegarLoop]: Starting to check reachability of 284 error locations. [2022-11-02 21:08:33,813 INFO L130 PetriNetUnfolder]: 0/36 cut-off events. [2022-11-02 21:08:33,814 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:08:33,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:08:33,815 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] [2022-11-02 21:08:33,816 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-02 21:08:33,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:33,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1040582299, now seen corresponding path program 1 times [2022-11-02 21:08:33,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:33,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583128467] [2022-11-02 21:08:33,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:33,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:34,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:08:34,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:34,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583128467] [2022-11-02 21:08:34,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583128467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:08:34,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:08:34,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:08:34,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087353020] [2022-11-02 21:08:34,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:08:34,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:08:34,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:34,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:08:34,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:08:34,229 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1111 [2022-11-02 21:08:34,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1038 places, 1084 transitions, 2186 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:34,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:08:34,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1111 [2022-11-02 21:08:34,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:08:41,362 INFO L130 PetriNetUnfolder]: 701/8730 cut-off events. [2022-11-02 21:08:41,362 INFO L131 PetriNetUnfolder]: For 186/186 co-relation queries the response was YES. [2022-11-02 21:08:41,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9517 conditions, 8730 events. 701/8730 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 81484 event pairs, 285 based on Foata normal form. 1272/8056 useless extension candidates. Maximal degree in co-relation 8543. Up to 664 conditions per place. [2022-11-02 21:08:42,232 INFO L137 encePairwiseOnDemand]: 1090/1111 looper letters, 39 selfloop transitions, 2 changer transitions 2/1065 dead transitions. [2022-11-02 21:08:42,233 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1039 places, 1065 transitions, 2230 flow [2022-11-02 21:08:42,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:08:42,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:08:42,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3207 transitions. [2022-11-02 21:08:42,265 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9621962196219622 [2022-11-02 21:08:42,266 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3207 transitions. [2022-11-02 21:08:42,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3207 transitions. [2022-11-02 21:08:42,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:08:42,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3207 transitions. [2022-11-02 21:08:42,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1069.0) internal successors, (3207), 3 states have internal predecessors, (3207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:42,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:42,313 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:42,315 INFO L175 Difference]: Start difference. First operand has 1038 places, 1084 transitions, 2186 flow. Second operand 3 states and 3207 transitions. [2022-11-02 21:08:42,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1039 places, 1065 transitions, 2230 flow [2022-11-02 21:08:42,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1033 places, 1065 transitions, 2218 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-02 21:08:42,356 INFO L231 Difference]: Finished difference. Result has 1033 places, 1063 transitions, 2136 flow [2022-11-02 21:08:42,361 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2136, PETRI_DIFFERENCE_MINUEND_PLACES=1031, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1065, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1063, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2136, PETRI_PLACES=1033, PETRI_TRANSITIONS=1063} [2022-11-02 21:08:42,367 INFO L287 CegarLoopForPetriNet]: 1038 programPoint places, -5 predicate places. [2022-11-02 21:08:42,367 INFO L495 AbstractCegarLoop]: Abstraction has has 1033 places, 1063 transitions, 2136 flow [2022-11-02 21:08:42,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:42,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:08:42,371 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:08:42,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:08:42,373 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-02 21:08:42,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:42,374 INFO L85 PathProgramCache]: Analyzing trace with hash -715679943, now seen corresponding path program 1 times [2022-11-02 21:08:42,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:42,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259219516] [2022-11-02 21:08:42,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:42,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:42,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:08:42,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:42,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259219516] [2022-11-02 21:08:42,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259219516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:08:42,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:08:42,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:08:42,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937564243] [2022-11-02 21:08:42,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:08:42,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:08:42,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:42,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:08:42,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:08:42,558 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1111 [2022-11-02 21:08:42,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1033 places, 1063 transitions, 2136 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:42,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:08:42,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1111 [2022-11-02 21:08:42,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:08:50,410 INFO L130 PetriNetUnfolder]: 1464/15281 cut-off events. [2022-11-02 21:08:50,410 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-11-02 21:08:50,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16937 conditions, 15281 events. 1464/15281 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 160557 event pairs, 735 based on Foata normal form. 0/11868 useless extension candidates. Maximal degree in co-relation 16893. Up to 1377 conditions per place. [2022-11-02 21:08:51,154 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 39 selfloop transitions, 2 changer transitions 0/1062 dead transitions. [2022-11-02 21:08:51,154 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1032 places, 1062 transitions, 2216 flow [2022-11-02 21:08:51,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:08:51,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:08:51,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3189 transitions. [2022-11-02 21:08:51,163 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9567956795679567 [2022-11-02 21:08:51,163 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3189 transitions. [2022-11-02 21:08:51,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3189 transitions. [2022-11-02 21:08:51,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:08:51,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3189 transitions. [2022-11-02 21:08:51,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1063.0) internal successors, (3189), 3 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:51,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:51,187 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:51,187 INFO L175 Difference]: Start difference. First operand has 1033 places, 1063 transitions, 2136 flow. Second operand 3 states and 3189 transitions. [2022-11-02 21:08:51,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1032 places, 1062 transitions, 2216 flow [2022-11-02 21:08:51,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1030 places, 1062 transitions, 2212 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:08:51,218 INFO L231 Difference]: Finished difference. Result has 1030 places, 1062 transitions, 2134 flow [2022-11-02 21:08:51,220 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2130, PETRI_DIFFERENCE_MINUEND_PLACES=1028, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1062, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1060, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2134, PETRI_PLACES=1030, PETRI_TRANSITIONS=1062} [2022-11-02 21:08:51,221 INFO L287 CegarLoopForPetriNet]: 1038 programPoint places, -8 predicate places. [2022-11-02 21:08:51,221 INFO L495 AbstractCegarLoop]: Abstraction has has 1030 places, 1062 transitions, 2134 flow [2022-11-02 21:08:51,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:51,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:08:51,224 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:08:51,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:08:51,225 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-02 21:08:51,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:51,226 INFO L85 PathProgramCache]: Analyzing trace with hash 2139899653, now seen corresponding path program 1 times [2022-11-02 21:08:51,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:51,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104841131] [2022-11-02 21:08:51,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:51,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:51,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:08:51,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:51,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104841131] [2022-11-02 21:08:51,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104841131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:08:51,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:08:51,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:08:51,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091766749] [2022-11-02 21:08:51,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:08:51,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:08:51,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:51,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:08:51,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:08:51,356 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1111 [2022-11-02 21:08:51,361 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1030 places, 1062 transitions, 2134 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:51,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:08:51,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1111 [2022-11-02 21:08:51,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:08:58,916 INFO L130 PetriNetUnfolder]: 1482/15187 cut-off events. [2022-11-02 21:08:58,916 INFO L131 PetriNetUnfolder]: For 288/351 co-relation queries the response was YES. [2022-11-02 21:08:59,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16617 conditions, 15187 events. 1482/15187 cut-off events. For 288/351 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 163884 event pairs, 735 based on Foata normal form. 0/11772 useless extension candidates. Maximal degree in co-relation 16566. Up to 1406 conditions per place. [2022-11-02 21:08:59,942 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 39 selfloop transitions, 2 changer transitions 0/1061 dead transitions. [2022-11-02 21:08:59,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1031 places, 1061 transitions, 2214 flow [2022-11-02 21:08:59,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:08:59,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:08:59,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3189 transitions. [2022-11-02 21:08:59,952 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9567956795679567 [2022-11-02 21:08:59,953 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3189 transitions. [2022-11-02 21:08:59,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3189 transitions. [2022-11-02 21:08:59,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:08:59,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3189 transitions. [2022-11-02 21:08:59,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1063.0) internal successors, (3189), 3 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:59,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:59,976 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:59,976 INFO L175 Difference]: Start difference. First operand has 1030 places, 1062 transitions, 2134 flow. Second operand 3 states and 3189 transitions. [2022-11-02 21:08:59,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1031 places, 1061 transitions, 2214 flow [2022-11-02 21:08:59,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1029 places, 1061 transitions, 2210 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:08:59,999 INFO L231 Difference]: Finished difference. Result has 1029 places, 1061 transitions, 2132 flow [2022-11-02 21:09:00,001 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2128, PETRI_DIFFERENCE_MINUEND_PLACES=1027, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1061, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1059, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2132, PETRI_PLACES=1029, PETRI_TRANSITIONS=1061} [2022-11-02 21:09:00,004 INFO L287 CegarLoopForPetriNet]: 1038 programPoint places, -9 predicate places. [2022-11-02 21:09:00,005 INFO L495 AbstractCegarLoop]: Abstraction has has 1029 places, 1061 transitions, 2132 flow [2022-11-02 21:09:00,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:00,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:00,008 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] [2022-11-02 21:09:00,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:09:00,008 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-02 21:09:00,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:00,009 INFO L85 PathProgramCache]: Analyzing trace with hash 209255940, now seen corresponding path program 1 times [2022-11-02 21:09:00,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:00,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719793178] [2022-11-02 21:09:00,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:00,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:00,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:00,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:00,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719793178] [2022-11-02 21:09:00,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719793178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:00,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:00,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:00,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488079955] [2022-11-02 21:09:00,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:00,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:00,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:00,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:00,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:00,101 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1052 out of 1111 [2022-11-02 21:09:00,106 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1029 places, 1061 transitions, 2132 flow. Second operand has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:00,106 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:00,106 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1052 of 1111 [2022-11-02 21:09:00,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:01,467 INFO L130 PetriNetUnfolder]: 158/2710 cut-off events. [2022-11-02 21:09:01,467 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 21:09:01,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2902 conditions, 2710 events. 158/2710 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 18428 event pairs, 48 based on Foata normal form. 0/2159 useless extension candidates. Maximal degree in co-relation 2844. Up to 135 conditions per place. [2022-11-02 21:09:01,584 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 36 selfloop transitions, 2 changer transitions 0/1060 dead transitions. [2022-11-02 21:09:01,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1030 places, 1060 transitions, 2206 flow [2022-11-02 21:09:01,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:01,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:01,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3195 transitions. [2022-11-02 21:09:01,593 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9585958595859586 [2022-11-02 21:09:01,594 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3195 transitions. [2022-11-02 21:09:01,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3195 transitions. [2022-11-02 21:09:01,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:01,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3195 transitions. [2022-11-02 21:09:01,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1065.0) internal successors, (3195), 3 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:01,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:01,643 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:01,644 INFO L175 Difference]: Start difference. First operand has 1029 places, 1061 transitions, 2132 flow. Second operand 3 states and 3195 transitions. [2022-11-02 21:09:01,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1030 places, 1060 transitions, 2206 flow [2022-11-02 21:09:01,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1028 places, 1060 transitions, 2202 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:01,670 INFO L231 Difference]: Finished difference. Result has 1028 places, 1060 transitions, 2130 flow [2022-11-02 21:09:01,673 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2126, PETRI_DIFFERENCE_MINUEND_PLACES=1026, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1060, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1058, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2130, PETRI_PLACES=1028, PETRI_TRANSITIONS=1060} [2022-11-02 21:09:01,675 INFO L287 CegarLoopForPetriNet]: 1038 programPoint places, -10 predicate places. [2022-11-02 21:09:01,675 INFO L495 AbstractCegarLoop]: Abstraction has has 1028 places, 1060 transitions, 2130 flow [2022-11-02 21:09:01,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:01,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:01,677 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] [2022-11-02 21:09:01,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:09:01,678 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-02 21:09:01,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:01,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1919620142, now seen corresponding path program 1 times [2022-11-02 21:09:01,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:01,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221573541] [2022-11-02 21:09:01,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:01,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:01,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:01,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:01,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221573541] [2022-11-02 21:09:01,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221573541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:01,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:01,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:01,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27106833] [2022-11-02 21:09:01,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:01,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:01,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:01,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:01,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:01,797 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1061 out of 1111 [2022-11-02 21:09:01,801 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1028 places, 1060 transitions, 2130 flow. Second operand has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:01,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:01,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1061 of 1111 [2022-11-02 21:09:01,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:02,682 INFO L130 PetriNetUnfolder]: 98/1629 cut-off events. [2022-11-02 21:09:02,682 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 21:09:02,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1774 conditions, 1629 events. 98/1629 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8654 event pairs, 36 based on Foata normal form. 0/1309 useless extension candidates. Maximal degree in co-relation 1709. Up to 100 conditions per place. [2022-11-02 21:09:02,759 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 27 selfloop transitions, 2 changer transitions 0/1059 dead transitions. [2022-11-02 21:09:02,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1029 places, 1059 transitions, 2186 flow [2022-11-02 21:09:02,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:02,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:02,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3213 transitions. [2022-11-02 21:09:02,769 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.963996399639964 [2022-11-02 21:09:02,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3213 transitions. [2022-11-02 21:09:02,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3213 transitions. [2022-11-02 21:09:02,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:02,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3213 transitions. [2022-11-02 21:09:02,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:02,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:02,885 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:02,886 INFO L175 Difference]: Start difference. First operand has 1028 places, 1060 transitions, 2130 flow. Second operand 3 states and 3213 transitions. [2022-11-02 21:09:02,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1029 places, 1059 transitions, 2186 flow [2022-11-02 21:09:02,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1027 places, 1059 transitions, 2182 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:02,920 INFO L231 Difference]: Finished difference. Result has 1027 places, 1059 transitions, 2128 flow [2022-11-02 21:09:02,921 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2124, PETRI_DIFFERENCE_MINUEND_PLACES=1025, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1059, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1057, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2128, PETRI_PLACES=1027, PETRI_TRANSITIONS=1059} [2022-11-02 21:09:02,926 INFO L287 CegarLoopForPetriNet]: 1038 programPoint places, -11 predicate places. [2022-11-02 21:09:02,926 INFO L495 AbstractCegarLoop]: Abstraction has has 1027 places, 1059 transitions, 2128 flow [2022-11-02 21:09:02,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:02,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:02,929 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] [2022-11-02 21:09:02,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:09:02,929 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-02 21:09:02,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:02,931 INFO L85 PathProgramCache]: Analyzing trace with hash 828863376, now seen corresponding path program 1 times [2022-11-02 21:09:02,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:02,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825289079] [2022-11-02 21:09:02,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:02,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:03,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:03,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:03,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825289079] [2022-11-02 21:09:03,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825289079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:03,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:03,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:03,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16494134] [2022-11-02 21:09:03,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:03,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:03,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:03,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:03,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:03,065 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1064 out of 1111 [2022-11-02 21:09:03,072 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1027 places, 1059 transitions, 2128 flow. Second operand has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:03,072 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:03,072 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1064 of 1111 [2022-11-02 21:09:03,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:04,325 INFO L130 PetriNetUnfolder]: 113/2077 cut-off events. [2022-11-02 21:09:04,325 INFO L131 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-11-02 21:09:04,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2204 conditions, 2077 events. 113/2077 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 11100 event pairs, 30 based on Foata normal form. 0/1664 useless extension candidates. Maximal degree in co-relation 2132. Up to 88 conditions per place. [2022-11-02 21:09:04,453 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 24 selfloop transitions, 2 changer transitions 0/1058 dead transitions. [2022-11-02 21:09:04,453 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1028 places, 1058 transitions, 2178 flow [2022-11-02 21:09:04,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:04,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:04,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3219 transitions. [2022-11-02 21:09:04,463 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9657965796579658 [2022-11-02 21:09:04,463 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3219 transitions. [2022-11-02 21:09:04,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3219 transitions. [2022-11-02 21:09:04,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:04,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3219 transitions. [2022-11-02 21:09:04,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1073.0) internal successors, (3219), 3 states have internal predecessors, (3219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:04,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:04,487 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:04,487 INFO L175 Difference]: Start difference. First operand has 1027 places, 1059 transitions, 2128 flow. Second operand 3 states and 3219 transitions. [2022-11-02 21:09:04,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1028 places, 1058 transitions, 2178 flow [2022-11-02 21:09:04,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1026 places, 1058 transitions, 2174 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:04,515 INFO L231 Difference]: Finished difference. Result has 1026 places, 1058 transitions, 2126 flow [2022-11-02 21:09:04,517 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2122, PETRI_DIFFERENCE_MINUEND_PLACES=1024, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1058, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1056, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2126, PETRI_PLACES=1026, PETRI_TRANSITIONS=1058} [2022-11-02 21:09:04,518 INFO L287 CegarLoopForPetriNet]: 1038 programPoint places, -12 predicate places. [2022-11-02 21:09:04,518 INFO L495 AbstractCegarLoop]: Abstraction has has 1026 places, 1058 transitions, 2126 flow [2022-11-02 21:09:04,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:04,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:04,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:04,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:09:04,521 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-02 21:09:04,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:04,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1044177642, now seen corresponding path program 1 times [2022-11-02 21:09:04,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:04,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210789356] [2022-11-02 21:09:04,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:04,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:04,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:04,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:04,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210789356] [2022-11-02 21:09:04,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210789356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:04,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:04,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:04,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566061642] [2022-11-02 21:09:04,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:04,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:04,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:04,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:04,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:04,585 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1043 out of 1111 [2022-11-02 21:09:04,590 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1026 places, 1058 transitions, 2126 flow. Second operand has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:04,590 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:04,590 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1043 of 1111 [2022-11-02 21:09:04,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:05,551 INFO L130 PetriNetUnfolder]: 158/2203 cut-off events. [2022-11-02 21:09:05,552 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 21:09:05,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2474 conditions, 2203 events. 158/2203 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 14070 event pairs, 72 based on Foata normal form. 0/1771 useless extension candidates. Maximal degree in co-relation 2395. Up to 190 conditions per place. [2022-11-02 21:09:05,664 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 45 selfloop transitions, 2 changer transitions 0/1057 dead transitions. [2022-11-02 21:09:05,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1027 places, 1057 transitions, 2218 flow [2022-11-02 21:09:05,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:05,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:05,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3177 transitions. [2022-11-02 21:09:05,673 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9531953195319532 [2022-11-02 21:09:05,673 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3177 transitions. [2022-11-02 21:09:05,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3177 transitions. [2022-11-02 21:09:05,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:05,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3177 transitions. [2022-11-02 21:09:05,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1059.0) internal successors, (3177), 3 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:05,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:05,693 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:05,693 INFO L175 Difference]: Start difference. First operand has 1026 places, 1058 transitions, 2126 flow. Second operand 3 states and 3177 transitions. [2022-11-02 21:09:05,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1027 places, 1057 transitions, 2218 flow [2022-11-02 21:09:05,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1025 places, 1057 transitions, 2214 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:05,715 INFO L231 Difference]: Finished difference. Result has 1025 places, 1057 transitions, 2124 flow [2022-11-02 21:09:05,717 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2120, PETRI_DIFFERENCE_MINUEND_PLACES=1023, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1057, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1055, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2124, PETRI_PLACES=1025, PETRI_TRANSITIONS=1057} [2022-11-02 21:09:05,718 INFO L287 CegarLoopForPetriNet]: 1038 programPoint places, -13 predicate places. [2022-11-02 21:09:05,718 INFO L495 AbstractCegarLoop]: Abstraction has has 1025 places, 1057 transitions, 2124 flow [2022-11-02 21:09:05,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:05,720 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:05,720 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:05,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:09:05,720 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-02 21:09:05,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:05,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1010423063, now seen corresponding path program 1 times [2022-11-02 21:09:05,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:05,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458931208] [2022-11-02 21:09:05,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:05,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:05,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:05,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:05,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458931208] [2022-11-02 21:09:05,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458931208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:05,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:05,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:05,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322536046] [2022-11-02 21:09:05,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:05,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:05,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:05,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:05,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:05,775 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1052 out of 1111 [2022-11-02 21:09:05,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1025 places, 1057 transitions, 2124 flow. Second operand has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:05,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:05,779 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1052 of 1111 [2022-11-02 21:09:05,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:06,873 INFO L130 PetriNetUnfolder]: 134/2174 cut-off events. [2022-11-02 21:09:06,874 INFO L131 PetriNetUnfolder]: For 27/77 co-relation queries the response was YES. [2022-11-02 21:09:06,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2342 conditions, 2174 events. 134/2174 cut-off events. For 27/77 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 14453 event pairs, 48 based on Foata normal form. 0/1743 useless extension candidates. Maximal degree in co-relation 2256. Up to 135 conditions per place. [2022-11-02 21:09:06,990 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 36 selfloop transitions, 2 changer transitions 0/1056 dead transitions. [2022-11-02 21:09:06,991 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1026 places, 1056 transitions, 2198 flow [2022-11-02 21:09:06,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:06,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:06,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3195 transitions. [2022-11-02 21:09:06,998 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9585958595859586 [2022-11-02 21:09:06,998 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3195 transitions. [2022-11-02 21:09:06,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3195 transitions. [2022-11-02 21:09:07,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:07,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3195 transitions. [2022-11-02 21:09:07,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1065.0) internal successors, (3195), 3 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:07,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:07,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:07,017 INFO L175 Difference]: Start difference. First operand has 1025 places, 1057 transitions, 2124 flow. Second operand 3 states and 3195 transitions. [2022-11-02 21:09:07,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1026 places, 1056 transitions, 2198 flow [2022-11-02 21:09:07,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1024 places, 1056 transitions, 2194 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:07,039 INFO L231 Difference]: Finished difference. Result has 1024 places, 1056 transitions, 2122 flow [2022-11-02 21:09:07,041 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2118, PETRI_DIFFERENCE_MINUEND_PLACES=1022, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1056, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1054, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2122, PETRI_PLACES=1024, PETRI_TRANSITIONS=1056} [2022-11-02 21:09:07,042 INFO L287 CegarLoopForPetriNet]: 1038 programPoint places, -14 predicate places. [2022-11-02 21:09:07,042 INFO L495 AbstractCegarLoop]: Abstraction has has 1024 places, 1056 transitions, 2122 flow [2022-11-02 21:09:07,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:07,044 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:07,044 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:07,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:09:07,045 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-02 21:09:07,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:07,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1405204789, now seen corresponding path program 1 times [2022-11-02 21:09:07,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:07,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534764829] [2022-11-02 21:09:07,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:07,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:07,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:07,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:07,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534764829] [2022-11-02 21:09:07,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534764829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:07,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:07,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:07,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330154642] [2022-11-02 21:09:07,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:07,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:07,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:07,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:07,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:07,098 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1061 out of 1111 [2022-11-02 21:09:07,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1024 places, 1056 transitions, 2122 flow. Second operand has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:07,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:07,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1061 of 1111 [2022-11-02 21:09:07,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:07,915 INFO L130 PetriNetUnfolder]: 98/1625 cut-off events. [2022-11-02 21:09:07,915 INFO L131 PetriNetUnfolder]: For 21/35 co-relation queries the response was YES. [2022-11-02 21:09:07,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1752 conditions, 1625 events. 98/1625 cut-off events. For 21/35 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9143 event pairs, 36 based on Foata normal form. 0/1302 useless extension candidates. Maximal degree in co-relation 1659. Up to 100 conditions per place. [2022-11-02 21:09:07,987 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 27 selfloop transitions, 2 changer transitions 0/1055 dead transitions. [2022-11-02 21:09:07,987 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1025 places, 1055 transitions, 2178 flow [2022-11-02 21:09:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:07,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:07,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3213 transitions. [2022-11-02 21:09:07,995 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.963996399639964 [2022-11-02 21:09:07,995 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3213 transitions. [2022-11-02 21:09:07,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3213 transitions. [2022-11-02 21:09:07,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:07,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3213 transitions. [2022-11-02 21:09:08,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:08,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:08,015 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:08,015 INFO L175 Difference]: Start difference. First operand has 1024 places, 1056 transitions, 2122 flow. Second operand 3 states and 3213 transitions. [2022-11-02 21:09:08,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1025 places, 1055 transitions, 2178 flow [2022-11-02 21:09:08,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1023 places, 1055 transitions, 2174 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:08,038 INFO L231 Difference]: Finished difference. Result has 1023 places, 1055 transitions, 2120 flow [2022-11-02 21:09:08,040 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2116, PETRI_DIFFERENCE_MINUEND_PLACES=1021, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1055, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1053, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2120, PETRI_PLACES=1023, PETRI_TRANSITIONS=1055} [2022-11-02 21:09:08,041 INFO L287 CegarLoopForPetriNet]: 1038 programPoint places, -15 predicate places. [2022-11-02 21:09:08,041 INFO L495 AbstractCegarLoop]: Abstraction has has 1023 places, 1055 transitions, 2120 flow [2022-11-02 21:09:08,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:08,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:08,043 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:08,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:09:08,043 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-02 21:09:08,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:08,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1796568062, now seen corresponding path program 1 times [2022-11-02 21:09:08,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:08,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294697153] [2022-11-02 21:09:08,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:08,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:08,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:08,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:08,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294697153] [2022-11-02 21:09:08,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294697153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:08,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:08,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:08,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183108740] [2022-11-02 21:09:08,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:08,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:08,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:08,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:08,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:08,098 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1064 out of 1111 [2022-11-02 21:09:08,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1023 places, 1055 transitions, 2120 flow. Second operand has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:08,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:08,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1064 of 1111 [2022-11-02 21:09:08,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:09,126 INFO L130 PetriNetUnfolder]: 101/1807 cut-off events. [2022-11-02 21:09:09,126 INFO L131 PetriNetUnfolder]: For 19/21 co-relation queries the response was YES. [2022-11-02 21:09:09,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 1807 events. 101/1807 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 9681 event pairs, 30 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 1819. Up to 88 conditions per place. [2022-11-02 21:09:09,240 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 24 selfloop transitions, 2 changer transitions 0/1054 dead transitions. [2022-11-02 21:09:09,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1024 places, 1054 transitions, 2170 flow [2022-11-02 21:09:09,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:09,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:09,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3219 transitions. [2022-11-02 21:09:09,249 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9657965796579658 [2022-11-02 21:09:09,250 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3219 transitions. [2022-11-02 21:09:09,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3219 transitions. [2022-11-02 21:09:09,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:09,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3219 transitions. [2022-11-02 21:09:09,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1073.0) internal successors, (3219), 3 states have internal predecessors, (3219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:09,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:09,273 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:09,273 INFO L175 Difference]: Start difference. First operand has 1023 places, 1055 transitions, 2120 flow. Second operand 3 states and 3219 transitions. [2022-11-02 21:09:09,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1024 places, 1054 transitions, 2170 flow [2022-11-02 21:09:09,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1022 places, 1054 transitions, 2166 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:09,301 INFO L231 Difference]: Finished difference. Result has 1022 places, 1054 transitions, 2118 flow [2022-11-02 21:09:09,304 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2114, PETRI_DIFFERENCE_MINUEND_PLACES=1020, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1052, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2118, PETRI_PLACES=1022, PETRI_TRANSITIONS=1054} [2022-11-02 21:09:09,305 INFO L287 CegarLoopForPetriNet]: 1038 programPoint places, -16 predicate places. [2022-11-02 21:09:09,305 INFO L495 AbstractCegarLoop]: Abstraction has has 1022 places, 1054 transitions, 2118 flow [2022-11-02 21:09:09,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:09,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:09,307 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:09,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:09:09,308 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-02 21:09:09,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:09,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1687284712, now seen corresponding path program 1 times [2022-11-02 21:09:09,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:09,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335623839] [2022-11-02 21:09:09,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:09,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:09,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:09,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:09,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335623839] [2022-11-02 21:09:09,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335623839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:09,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:09,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:09,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263276582] [2022-11-02 21:09:09,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:09,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:09,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:09,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:09,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:09,403 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1043 out of 1111 [2022-11-02 21:09:09,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1022 places, 1054 transitions, 2118 flow. Second operand has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:09,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:09,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1043 of 1111 [2022-11-02 21:09:09,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:10,742 INFO L130 PetriNetUnfolder]: 146/1933 cut-off events. [2022-11-02 21:09:10,742 INFO L131 PetriNetUnfolder]: For 39/98 co-relation queries the response was YES. [2022-11-02 21:09:10,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2168 conditions, 1933 events. 146/1933 cut-off events. For 39/98 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 13156 event pairs, 72 based on Foata normal form. 0/1547 useless extension candidates. Maximal degree in co-relation 2061. Up to 190 conditions per place. [2022-11-02 21:09:10,898 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 45 selfloop transitions, 2 changer transitions 0/1053 dead transitions. [2022-11-02 21:09:10,898 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1023 places, 1053 transitions, 2210 flow [2022-11-02 21:09:10,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:10,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:10,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3177 transitions. [2022-11-02 21:09:10,906 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9531953195319532 [2022-11-02 21:09:10,906 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3177 transitions. [2022-11-02 21:09:10,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3177 transitions. [2022-11-02 21:09:10,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:10,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3177 transitions. [2022-11-02 21:09:10,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1059.0) internal successors, (3177), 3 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:10,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:10,928 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:10,928 INFO L175 Difference]: Start difference. First operand has 1022 places, 1054 transitions, 2118 flow. Second operand 3 states and 3177 transitions. [2022-11-02 21:09:10,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1023 places, 1053 transitions, 2210 flow [2022-11-02 21:09:10,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1021 places, 1053 transitions, 2206 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:10,959 INFO L231 Difference]: Finished difference. Result has 1021 places, 1053 transitions, 2116 flow [2022-11-02 21:09:10,961 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2112, PETRI_DIFFERENCE_MINUEND_PLACES=1019, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1053, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1051, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2116, PETRI_PLACES=1021, PETRI_TRANSITIONS=1053} [2022-11-02 21:09:10,962 INFO L287 CegarLoopForPetriNet]: 1038 programPoint places, -17 predicate places. [2022-11-02 21:09:10,962 INFO L495 AbstractCegarLoop]: Abstraction has has 1021 places, 1053 transitions, 2116 flow [2022-11-02 21:09:10,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:10,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:10,964 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:10,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:09:10,965 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-02 21:09:10,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:10,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1259207444, now seen corresponding path program 1 times [2022-11-02 21:09:10,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:10,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658636272] [2022-11-02 21:09:10,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:10,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:11,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:11,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:11,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658636272] [2022-11-02 21:09:11,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658636272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:11,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:11,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:11,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911075243] [2022-11-02 21:09:11,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:11,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:11,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:11,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:11,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:11,036 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1052 out of 1111 [2022-11-02 21:09:11,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1021 places, 1053 transitions, 2116 flow. Second operand has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:11,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:11,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1052 of 1111 [2022-11-02 21:09:11,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:11,979 INFO L130 PetriNetUnfolder]: 110/1598 cut-off events. [2022-11-02 21:09:11,979 INFO L131 PetriNetUnfolder]: For 51/53 co-relation queries the response was YES. [2022-11-02 21:09:12,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1741 conditions, 1598 events. 110/1598 cut-off events. For 51/53 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 9483 event pairs, 48 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 1627. Up to 134 conditions per place. [2022-11-02 21:09:12,047 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 35 selfloop transitions, 2 changer transitions 0/1052 dead transitions. [2022-11-02 21:09:12,047 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1022 places, 1052 transitions, 2188 flow [2022-11-02 21:09:12,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:12,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:12,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3194 transitions. [2022-11-02 21:09:12,055 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9582958295829583 [2022-11-02 21:09:12,055 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3194 transitions. [2022-11-02 21:09:12,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3194 transitions. [2022-11-02 21:09:12,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:12,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3194 transitions. [2022-11-02 21:09:12,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1064.6666666666667) internal successors, (3194), 3 states have internal predecessors, (3194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:12,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:12,069 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:12,070 INFO L175 Difference]: Start difference. First operand has 1021 places, 1053 transitions, 2116 flow. Second operand 3 states and 3194 transitions. [2022-11-02 21:09:12,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1022 places, 1052 transitions, 2188 flow [2022-11-02 21:09:12,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1020 places, 1052 transitions, 2184 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:12,091 INFO L231 Difference]: Finished difference. Result has 1020 places, 1052 transitions, 2114 flow [2022-11-02 21:09:12,093 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2110, PETRI_DIFFERENCE_MINUEND_PLACES=1018, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1052, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1050, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2114, PETRI_PLACES=1020, PETRI_TRANSITIONS=1052} [2022-11-02 21:09:12,093 INFO L287 CegarLoopForPetriNet]: 1038 programPoint places, -18 predicate places. [2022-11-02 21:09:12,094 INFO L495 AbstractCegarLoop]: Abstraction has has 1020 places, 1052 transitions, 2114 flow [2022-11-02 21:09:12,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:12,095 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:12,095 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:12,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 21:09:12,095 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-02 21:09:12,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:12,096 INFO L85 PathProgramCache]: Analyzing trace with hash -631922247, now seen corresponding path program 1 times [2022-11-02 21:09:12,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:12,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565884708] [2022-11-02 21:09:12,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:12,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:12,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:12,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:12,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565884708] [2022-11-02 21:09:12,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565884708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:12,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:12,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:12,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455947001] [2022-11-02 21:09:12,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:12,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:12,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:12,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:12,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:12,158 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1061 out of 1111 [2022-11-02 21:09:12,161 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1020 places, 1052 transitions, 2114 flow. Second operand has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:12,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:12,161 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1061 of 1111 [2022-11-02 21:09:12,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:13,106 INFO L130 PetriNetUnfolder]: 98/1621 cut-off events. [2022-11-02 21:09:13,106 INFO L131 PetriNetUnfolder]: For 39/41 co-relation queries the response was YES. [2022-11-02 21:09:13,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1730 conditions, 1621 events. 98/1621 cut-off events. For 39/41 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 9487 event pairs, 36 based on Foata normal form. 0/1302 useless extension candidates. Maximal degree in co-relation 1609. Up to 100 conditions per place. [2022-11-02 21:09:13,235 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 27 selfloop transitions, 2 changer transitions 0/1051 dead transitions. [2022-11-02 21:09:13,236 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1021 places, 1051 transitions, 2170 flow [2022-11-02 21:09:13,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:13,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:13,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3213 transitions. [2022-11-02 21:09:13,243 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.963996399639964 [2022-11-02 21:09:13,244 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3213 transitions. [2022-11-02 21:09:13,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3213 transitions. [2022-11-02 21:09:13,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:13,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3213 transitions. [2022-11-02 21:09:13,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:13,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:13,258 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:13,258 INFO L175 Difference]: Start difference. First operand has 1020 places, 1052 transitions, 2114 flow. Second operand 3 states and 3213 transitions. [2022-11-02 21:09:13,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1021 places, 1051 transitions, 2170 flow [2022-11-02 21:09:13,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1019 places, 1051 transitions, 2166 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:13,283 INFO L231 Difference]: Finished difference. Result has 1019 places, 1051 transitions, 2112 flow [2022-11-02 21:09:13,285 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2108, PETRI_DIFFERENCE_MINUEND_PLACES=1017, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1051, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1049, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2112, PETRI_PLACES=1019, PETRI_TRANSITIONS=1051} [2022-11-02 21:09:13,287 INFO L287 CegarLoopForPetriNet]: 1038 programPoint places, -19 predicate places. [2022-11-02 21:09:13,287 INFO L495 AbstractCegarLoop]: Abstraction has has 1019 places, 1051 transitions, 2112 flow [2022-11-02 21:09:13,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:13,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:13,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:13,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 21:09:13,291 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-02 21:09:13,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:13,293 INFO L85 PathProgramCache]: Analyzing trace with hash -2061789909, now seen corresponding path program 1 times [2022-11-02 21:09:13,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:13,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080389401] [2022-11-02 21:09:13,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:13,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:13,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:13,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:13,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080389401] [2022-11-02 21:09:13,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080389401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:13,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:13,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:13,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021768204] [2022-11-02 21:09:13,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:13,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:13,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:13,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:13,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:13,357 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1064 out of 1111 [2022-11-02 21:09:13,360 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1019 places, 1051 transitions, 2112 flow. Second operand has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:13,361 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:13,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1064 of 1111 [2022-11-02 21:09:13,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:14,393 INFO L130 PetriNetUnfolder]: 89/1533 cut-off events. [2022-11-02 21:09:14,393 INFO L131 PetriNetUnfolder]: For 34/36 co-relation queries the response was YES. [2022-11-02 21:09:14,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1630 conditions, 1533 events. 89/1533 cut-off events. For 34/36 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 7732 event pairs, 30 based on Foata normal form. 0/1245 useless extension candidates. Maximal degree in co-relation 1502. Up to 88 conditions per place. [2022-11-02 21:09:14,476 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 24 selfloop transitions, 2 changer transitions 0/1050 dead transitions. [2022-11-02 21:09:14,476 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1020 places, 1050 transitions, 2162 flow [2022-11-02 21:09:14,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:14,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:14,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3219 transitions. [2022-11-02 21:09:14,485 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9657965796579658 [2022-11-02 21:09:14,485 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3219 transitions. [2022-11-02 21:09:14,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3219 transitions. [2022-11-02 21:09:14,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:14,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3219 transitions. [2022-11-02 21:09:14,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1073.0) internal successors, (3219), 3 states have internal predecessors, (3219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:14,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:14,498 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:14,498 INFO L175 Difference]: Start difference. First operand has 1019 places, 1051 transitions, 2112 flow. Second operand 3 states and 3219 transitions. [2022-11-02 21:09:14,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1020 places, 1050 transitions, 2162 flow [2022-11-02 21:09:14,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1018 places, 1050 transitions, 2158 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:14,529 INFO L231 Difference]: Finished difference. Result has 1018 places, 1050 transitions, 2110 flow [2022-11-02 21:09:14,531 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2106, PETRI_DIFFERENCE_MINUEND_PLACES=1016, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1050, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1048, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2110, PETRI_PLACES=1018, PETRI_TRANSITIONS=1050} [2022-11-02 21:09:14,532 INFO L287 CegarLoopForPetriNet]: 1038 programPoint places, -20 predicate places. [2022-11-02 21:09:14,532 INFO L495 AbstractCegarLoop]: Abstraction has has 1018 places, 1050 transitions, 2110 flow [2022-11-02 21:09:14,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:14,534 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:14,534 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:14,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 21:09:14,535 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-02 21:09:14,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:14,535 INFO L85 PathProgramCache]: Analyzing trace with hash -650688338, now seen corresponding path program 1 times [2022-11-02 21:09:14,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:14,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593287100] [2022-11-02 21:09:14,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:14,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:14,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:14,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:14,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593287100] [2022-11-02 21:09:14,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593287100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:14,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:14,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:14,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686834504] [2022-11-02 21:09:14,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:14,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:14,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:14,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:14,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:14,624 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1043 out of 1111 [2022-11-02 21:09:14,629 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1018 places, 1050 transitions, 2110 flow. Second operand has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:14,629 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:14,629 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1043 of 1111 [2022-11-02 21:09:14,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:15,734 INFO L130 PetriNetUnfolder]: 134/1643 cut-off events. [2022-11-02 21:09:15,734 INFO L131 PetriNetUnfolder]: For 75/77 co-relation queries the response was YES. [2022-11-02 21:09:15,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 1643 events. 134/1643 cut-off events. For 75/77 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 11069 event pairs, 72 based on Foata normal form. 0/1323 useless extension candidates. Maximal degree in co-relation 1707. Up to 190 conditions per place. [2022-11-02 21:09:15,824 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 45 selfloop transitions, 2 changer transitions 0/1049 dead transitions. [2022-11-02 21:09:15,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1019 places, 1049 transitions, 2202 flow [2022-11-02 21:09:15,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:15,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:15,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3177 transitions. [2022-11-02 21:09:15,833 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9531953195319532 [2022-11-02 21:09:15,833 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3177 transitions. [2022-11-02 21:09:15,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3177 transitions. [2022-11-02 21:09:15,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:15,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3177 transitions. [2022-11-02 21:09:15,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1059.0) internal successors, (3177), 3 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:15,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:15,846 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:15,846 INFO L175 Difference]: Start difference. First operand has 1018 places, 1050 transitions, 2110 flow. Second operand 3 states and 3177 transitions. [2022-11-02 21:09:15,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1019 places, 1049 transitions, 2202 flow [2022-11-02 21:09:15,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1017 places, 1049 transitions, 2198 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:15,868 INFO L231 Difference]: Finished difference. Result has 1017 places, 1049 transitions, 2108 flow [2022-11-02 21:09:15,869 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2104, PETRI_DIFFERENCE_MINUEND_PLACES=1015, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1049, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1047, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2108, PETRI_PLACES=1017, PETRI_TRANSITIONS=1049} [2022-11-02 21:09:15,870 INFO L287 CegarLoopForPetriNet]: 1038 programPoint places, -21 predicate places. [2022-11-02 21:09:15,870 INFO L495 AbstractCegarLoop]: Abstraction has has 1017 places, 1049 transitions, 2108 flow [2022-11-02 21:09:15,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:15,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:15,871 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:15,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 21:09:15,871 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-02 21:09:15,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:15,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1529007315, now seen corresponding path program 1 times [2022-11-02 21:09:15,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:15,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232467502] [2022-11-02 21:09:15,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:15,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:15,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:15,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:15,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:15,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232467502] [2022-11-02 21:09:15,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232467502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:15,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:15,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:15,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520802152] [2022-11-02 21:09:15,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:15,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:15,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:15,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:15,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:15,980 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1070 out of 1111 [2022-11-02 21:09:15,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1017 places, 1049 transitions, 2108 flow. Second operand has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:15,985 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:15,985 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1070 of 1111 [2022-11-02 21:09:15,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:20,288 INFO L130 PetriNetUnfolder]: 579/9162 cut-off events. [2022-11-02 21:09:20,288 INFO L131 PetriNetUnfolder]: For 42/65 co-relation queries the response was YES. [2022-11-02 21:09:20,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9512 conditions, 9162 events. 579/9162 cut-off events. For 42/65 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 86889 event pairs, 135 based on Foata normal form. 0/7175 useless extension candidates. Maximal degree in co-relation 9370. Up to 323 conditions per place. [2022-11-02 21:09:20,815 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 18 selfloop transitions, 2 changer transitions 0/1048 dead transitions. [2022-11-02 21:09:20,816 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1018 places, 1048 transitions, 2146 flow [2022-11-02 21:09:20,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:20,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:20,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3231 transitions. [2022-11-02 21:09:20,825 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9693969396939695 [2022-11-02 21:09:20,825 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3231 transitions. [2022-11-02 21:09:20,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3231 transitions. [2022-11-02 21:09:20,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:20,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3231 transitions. [2022-11-02 21:09:20,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:20,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:20,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:20,839 INFO L175 Difference]: Start difference. First operand has 1017 places, 1049 transitions, 2108 flow. Second operand 3 states and 3231 transitions. [2022-11-02 21:09:20,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1018 places, 1048 transitions, 2146 flow [2022-11-02 21:09:20,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1016 places, 1048 transitions, 2142 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:20,867 INFO L231 Difference]: Finished difference. Result has 1016 places, 1048 transitions, 2106 flow [2022-11-02 21:09:20,869 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2102, PETRI_DIFFERENCE_MINUEND_PLACES=1014, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1048, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1046, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2106, PETRI_PLACES=1016, PETRI_TRANSITIONS=1048} [2022-11-02 21:09:20,869 INFO L287 CegarLoopForPetriNet]: 1038 programPoint places, -22 predicate places. [2022-11-02 21:09:20,870 INFO L495 AbstractCegarLoop]: Abstraction has has 1016 places, 1048 transitions, 2106 flow [2022-11-02 21:09:20,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:20,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:20,871 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:20,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 21:09:20,872 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-02 21:09:20,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:20,873 INFO L85 PathProgramCache]: Analyzing trace with hash -530006834, now seen corresponding path program 1 times [2022-11-02 21:09:20,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:20,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066733357] [2022-11-02 21:09:20,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:20,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:21,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:21,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:21,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066733357] [2022-11-02 21:09:21,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066733357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:21,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:21,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:09:21,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100020364] [2022-11-02 21:09:21,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:21,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:09:21,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:21,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:09:21,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:09:21,988 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1032 out of 1111 [2022-11-02 21:09:21,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1016 places, 1048 transitions, 2106 flow. Second operand has 6 states, 6 states have (on average 1033.8333333333333) internal successors, (6203), 6 states have internal predecessors, (6203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:21,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:21,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1032 of 1111 [2022-11-02 21:09:21,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand