./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-subst.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_ee38ca69-8ce5-4ee1-90fd-67554807c732/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee38ca69-8ce5-4ee1-90fd-67554807c732/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_ee38ca69-8ce5-4ee1-90fd-67554807c732/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee38ca69-8ce5-4ee1-90fd-67554807c732/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee38ca69-8ce5-4ee1-90fd-67554807c732/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_ee38ca69-8ce5-4ee1-90fd-67554807c732/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 98c397d7a260fe673f9e4655b5dca942c114f9b11115010a8eef60e068615ab1 --- 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 20:28:18,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:28:18,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:28:18,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:28:18,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:28:18,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:28:18,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:28:18,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:28:18,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:28:18,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:28:18,457 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:28:18,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:28:18,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:28:18,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:28:18,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:28:18,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:28:18,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:28:18,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:28:18,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:28:18,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:28:18,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:28:18,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:28:18,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:28:18,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:28:18,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:28:18,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:28:18,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:28:18,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:28:18,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:28:18,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:28:18,508 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:28:18,509 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:28:18,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:28:18,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:28:18,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:28:18,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:28:18,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:28:18,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:28:18,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:28:18,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:28:18,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:28:18,518 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee38ca69-8ce5-4ee1-90fd-67554807c732/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:28:18,547 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:28:18,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:28:18,548 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:28:18,548 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:28:18,549 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:28:18,550 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:28:18,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:28:18,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:28:18,551 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:28:18,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:28:18,552 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:28:18,552 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:28:18,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:28:18,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:28:18,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:28:18,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:28:18,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:28:18,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:28:18,554 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:28:18,554 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:28:18,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:28:18,555 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:28:18,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:28:18,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:28:18,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:28:18,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:28:18,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:28:18,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:28:18,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:28:18,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:28:18,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:28:18,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:28:18,559 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:28:18,559 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:28:18,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:28:18,559 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_ee38ca69-8ce5-4ee1-90fd-67554807c732/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee38ca69-8ce5-4ee1-90fd-67554807c732/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98c397d7a260fe673f9e4655b5dca942c114f9b11115010a8eef60e068615ab1 [2022-11-02 20:28:18,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:28:18,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:28:18,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:28:18,971 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:28:18,972 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:28:18,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee38ca69-8ce5-4ee1-90fd-67554807c732/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2022-11-02 20:28:19,077 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee38ca69-8ce5-4ee1-90fd-67554807c732/bin/uautomizer-Dbtcem3rbc/data/81bd855ad/3f36374fc285403399ed1c329994e52b/FLAG0cb2c48f2 [2022-11-02 20:28:19,706 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:28:19,710 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee38ca69-8ce5-4ee1-90fd-67554807c732/sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2022-11-02 20:28:19,722 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee38ca69-8ce5-4ee1-90fd-67554807c732/bin/uautomizer-Dbtcem3rbc/data/81bd855ad/3f36374fc285403399ed1c329994e52b/FLAG0cb2c48f2 [2022-11-02 20:28:20,008 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee38ca69-8ce5-4ee1-90fd-67554807c732/bin/uautomizer-Dbtcem3rbc/data/81bd855ad/3f36374fc285403399ed1c329994e52b [2022-11-02 20:28:20,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:28:20,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:28:20,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:28:20,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:28:20,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:28:20,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:28:20" (1/1) ... [2022-11-02 20:28:20,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1177c273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:28:20, skipping insertion in model container [2022-11-02 20:28:20,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:28:20" (1/1) ... [2022-11-02 20:28:20,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:28:20,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:28:20,377 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_ee38ca69-8ce5-4ee1-90fd-67554807c732/sv-benchmarks/c/weaver/chl-word-subst.wvr.c[3345,3358] [2022-11-02 20:28:20,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:28:20,403 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:28:20,505 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_ee38ca69-8ce5-4ee1-90fd-67554807c732/sv-benchmarks/c/weaver/chl-word-subst.wvr.c[3345,3358] [2022-11-02 20:28:20,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:28:20,560 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:28:20,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:28:20 WrapperNode [2022-11-02 20:28:20,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:28:20,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:28:20,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:28:20,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:28:20,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:28:20" (1/1) ... [2022-11-02 20:28:20,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:28:20" (1/1) ... [2022-11-02 20:28:20,637 INFO L138 Inliner]: procedures = 25, calls = 45, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 268 [2022-11-02 20:28:20,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:28:20,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:28:20,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:28:20,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:28:20,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:28:20" (1/1) ... [2022-11-02 20:28:20,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:28:20" (1/1) ... [2022-11-02 20:28:20,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:28:20" (1/1) ... [2022-11-02 20:28:20,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:28:20" (1/1) ... [2022-11-02 20:28:20,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:28:20" (1/1) ... [2022-11-02 20:28:20,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:28:20" (1/1) ... [2022-11-02 20:28:20,743 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:28:20" (1/1) ... [2022-11-02 20:28:20,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:28:20" (1/1) ... [2022-11-02 20:28:20,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:28:20,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:28:20,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:28:20,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:28:20,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:28:20" (1/1) ... [2022-11-02 20:28:20,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:28:20,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee38ca69-8ce5-4ee1-90fd-67554807c732/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:28:20,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee38ca69-8ce5-4ee1-90fd-67554807c732/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:28:20,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee38ca69-8ce5-4ee1-90fd-67554807c732/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:28:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:28:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:28:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:28:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:28:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:28:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:28:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:28:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:28:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 20:28:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 20:28:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:28:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:28:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:28:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:28:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:28:20,883 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 20:28:21,106 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:28:21,121 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:28:22,295 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:28:22,310 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:28:22,310 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-02 20:28:22,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:28:22 BoogieIcfgContainer [2022-11-02 20:28:22,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:28:22,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:28:22,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:28:22,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:28:22,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:28:20" (1/3) ... [2022-11-02 20:28:22,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295997b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:28:22, skipping insertion in model container [2022-11-02 20:28:22,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:28:20" (2/3) ... [2022-11-02 20:28:22,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295997b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:28:22, skipping insertion in model container [2022-11-02 20:28:22,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:28:22" (3/3) ... [2022-11-02 20:28:22,330 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-subst.wvr.c [2022-11-02 20:28:22,346 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:28:22,359 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:28:22,359 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 80 error locations. [2022-11-02 20:28:22,359 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:28:22,622 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-02 20:28:22,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 669 places, 698 transitions, 1420 flow [2022-11-02 20:28:23,152 INFO L130 PetriNetUnfolder]: 39/695 cut-off events. [2022-11-02 20:28:23,152 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 20:28:23,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 708 conditions, 695 events. 39/695 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1896 event pairs, 0 based on Foata normal form. 0/576 useless extension candidates. Maximal degree in co-relation 501. Up to 3 conditions per place. [2022-11-02 20:28:23,173 INFO L82 GeneralOperation]: Start removeDead. Operand has 669 places, 698 transitions, 1420 flow [2022-11-02 20:28:23,193 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 645 places, 672 transitions, 1362 flow [2022-11-02 20:28:23,220 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:28:23,230 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;@60078713, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:28:23,231 INFO L358 AbstractCegarLoop]: Starting to check reachability of 140 error locations. [2022-11-02 20:28:23,255 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-11-02 20:28:23,255 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:28:23,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:28:23,257 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] [2022-11-02 20:28:23,258 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-02 20:28:23,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:23,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1374587086, now seen corresponding path program 1 times [2022-11-02 20:28:23,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:28:23,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089382913] [2022-11-02 20:28:23,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:23,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:28:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:23,614 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 20:28:23,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:23,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089382913] [2022-11-02 20:28:23,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089382913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:23,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:23,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:28:23,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996625078] [2022-11-02 20:28:23,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:23,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:28:23,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:23,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:28:23,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:28:23,695 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 698 [2022-11-02 20:28:23,706 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 645 places, 672 transitions, 1362 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:28:23,706 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:28:23,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 698 [2022-11-02 20:28:23,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:28:25,090 INFO L130 PetriNetUnfolder]: 282/2829 cut-off events. [2022-11-02 20:28:25,091 INFO L131 PetriNetUnfolder]: For 102/102 co-relation queries the response was YES. [2022-11-02 20:28:25,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3220 conditions, 2829 events. 282/2829 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 23165 event pairs, 132 based on Foata normal form. 75/2300 useless extension candidates. Maximal degree in co-relation 2777. Up to 256 conditions per place. [2022-11-02 20:28:25,203 INFO L137 encePairwiseOnDemand]: 682/698 looper letters, 21 selfloop transitions, 2 changer transitions 7/658 dead transitions. [2022-11-02 20:28:25,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 658 transitions, 1380 flow [2022-11-02 20:28:25,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:28:25,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:28:25,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2014 transitions. [2022-11-02 20:28:25,241 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9617956064947469 [2022-11-02 20:28:25,242 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2014 transitions. [2022-11-02 20:28:25,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2014 transitions. [2022-11-02 20:28:25,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:28:25,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2014 transitions. [2022-11-02 20:28:25,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.3333333333334) internal successors, (2014), 3 states have internal predecessors, (2014), 0 states have call successors, (0), 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 20:28:25,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 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 20:28:25,285 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 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 20:28:25,287 INFO L175 Difference]: Start difference. First operand has 645 places, 672 transitions, 1362 flow. Second operand 3 states and 2014 transitions. [2022-11-02 20:28:25,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 646 places, 658 transitions, 1380 flow [2022-11-02 20:28:25,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 640 places, 658 transitions, 1368 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-02 20:28:25,323 INFO L231 Difference]: Finished difference. Result has 640 places, 651 transitions, 1312 flow [2022-11-02 20:28:25,327 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=1322, PETRI_DIFFERENCE_MINUEND_PLACES=638, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=658, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=656, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1312, PETRI_PLACES=640, PETRI_TRANSITIONS=651} [2022-11-02 20:28:25,333 INFO L287 CegarLoopForPetriNet]: 645 programPoint places, -5 predicate places. [2022-11-02 20:28:25,334 INFO L495 AbstractCegarLoop]: Abstraction has has 640 places, 651 transitions, 1312 flow [2022-11-02 20:28:25,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:28:25,336 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:28:25,336 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] [2022-11-02 20:28:25,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:28:25,337 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-02 20:28:25,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:25,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1079554109, now seen corresponding path program 1 times [2022-11-02 20:28:25,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:28:25,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12951039] [2022-11-02 20:28:25,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:25,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:28:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:25,475 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 20:28:25,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:25,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12951039] [2022-11-02 20:28:25,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12951039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:25,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:25,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:28:25,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960996037] [2022-11-02 20:28:25,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:25,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:28:25,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:25,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:28:25,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:28:25,484 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 698 [2022-11-02 20:28:25,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 640 places, 651 transitions, 1312 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:28:25,488 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:28:25,489 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 698 [2022-11-02 20:28:25,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:28:26,378 INFO L130 PetriNetUnfolder]: 161/2020 cut-off events. [2022-11-02 20:28:26,378 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-02 20:28:26,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2183 conditions, 2020 events. 161/2020 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 13704 event pairs, 60 based on Foata normal form. 0/1608 useless extension candidates. Maximal degree in co-relation 2143. Up to 142 conditions per place. [2022-11-02 20:28:26,463 INFO L137 encePairwiseOnDemand]: 695/698 looper letters, 21 selfloop transitions, 2 changer transitions 0/650 dead transitions. [2022-11-02 20:28:26,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 634 places, 650 transitions, 1356 flow [2022-11-02 20:28:26,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:28:26,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:28:26,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2001 transitions. [2022-11-02 20:28:26,472 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9555873925501432 [2022-11-02 20:28:26,472 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2001 transitions. [2022-11-02 20:28:26,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2001 transitions. [2022-11-02 20:28:26,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:28:26,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2001 transitions. [2022-11-02 20:28:26,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 667.0) internal successors, (2001), 3 states have internal predecessors, (2001), 0 states have call successors, (0), 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 20:28:26,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 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 20:28:26,488 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 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 20:28:26,488 INFO L175 Difference]: Start difference. First operand has 640 places, 651 transitions, 1312 flow. Second operand 3 states and 2001 transitions. [2022-11-02 20:28:26,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 634 places, 650 transitions, 1356 flow [2022-11-02 20:28:26,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 632 places, 650 transitions, 1352 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:28:26,504 INFO L231 Difference]: Finished difference. Result has 632 places, 650 transitions, 1310 flow [2022-11-02 20:28:26,505 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=1306, PETRI_DIFFERENCE_MINUEND_PLACES=630, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=650, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=648, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1310, PETRI_PLACES=632, PETRI_TRANSITIONS=650} [2022-11-02 20:28:26,506 INFO L287 CegarLoopForPetriNet]: 645 programPoint places, -13 predicate places. [2022-11-02 20:28:26,507 INFO L495 AbstractCegarLoop]: Abstraction has has 632 places, 650 transitions, 1310 flow [2022-11-02 20:28:26,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:28:26,509 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:28:26,509 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] [2022-11-02 20:28:26,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:28:26,510 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-02 20:28:26,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:26,512 INFO L85 PathProgramCache]: Analyzing trace with hash 130010636, now seen corresponding path program 1 times [2022-11-02 20:28:26,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:28:26,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048172875] [2022-11-02 20:28:26,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:26,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:28:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:26,581 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 20:28:26,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:26,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048172875] [2022-11-02 20:28:26,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048172875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:26,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:26,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:28:26,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398307675] [2022-11-02 20:28:26,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:26,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:28:26,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:26,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:28:26,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:28:26,671 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 698 [2022-11-02 20:28:26,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 632 places, 650 transitions, 1310 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:28:26,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:28:26,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 698 [2022-11-02 20:28:26,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:28:27,741 INFO L130 PetriNetUnfolder]: 275/2747 cut-off events. [2022-11-02 20:28:27,741 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-02 20:28:27,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3012 conditions, 2747 events. 275/2747 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 21958 event pairs, 132 based on Foata normal form. 0/2182 useless extension candidates. Maximal degree in co-relation 2965. Up to 250 conditions per place. [2022-11-02 20:28:27,845 INFO L137 encePairwiseOnDemand]: 695/698 looper letters, 21 selfloop transitions, 2 changer transitions 0/649 dead transitions. [2022-11-02 20:28:27,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 633 places, 649 transitions, 1354 flow [2022-11-02 20:28:27,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:28:27,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:28:27,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2001 transitions. [2022-11-02 20:28:27,965 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9555873925501432 [2022-11-02 20:28:27,965 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2001 transitions. [2022-11-02 20:28:27,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2001 transitions. [2022-11-02 20:28:27,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:28:27,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2001 transitions. [2022-11-02 20:28:27,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 667.0) internal successors, (2001), 3 states have internal predecessors, (2001), 0 states have call successors, (0), 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 20:28:27,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 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 20:28:27,978 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 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 20:28:27,978 INFO L175 Difference]: Start difference. First operand has 632 places, 650 transitions, 1310 flow. Second operand 3 states and 2001 transitions. [2022-11-02 20:28:27,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 633 places, 649 transitions, 1354 flow [2022-11-02 20:28:27,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 631 places, 649 transitions, 1350 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:28:27,992 INFO L231 Difference]: Finished difference. Result has 631 places, 649 transitions, 1308 flow [2022-11-02 20:28:27,993 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=1304, PETRI_DIFFERENCE_MINUEND_PLACES=629, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=649, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=647, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1308, PETRI_PLACES=631, PETRI_TRANSITIONS=649} [2022-11-02 20:28:27,994 INFO L287 CegarLoopForPetriNet]: 645 programPoint places, -14 predicate places. [2022-11-02 20:28:27,994 INFO L495 AbstractCegarLoop]: Abstraction has has 631 places, 649 transitions, 1308 flow [2022-11-02 20:28:27,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:28:27,996 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:28:27,997 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] [2022-11-02 20:28:27,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:28:27,997 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-02 20:28:27,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:27,998 INFO L85 PathProgramCache]: Analyzing trace with hash -124742689, now seen corresponding path program 1 times [2022-11-02 20:28:27,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:28:27,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951411791] [2022-11-02 20:28:27,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:27,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:28:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:28,058 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 20:28:28,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:28,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951411791] [2022-11-02 20:28:28,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951411791] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:28,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:28,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:28:28,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866094579] [2022-11-02 20:28:28,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:28,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:28:28,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:28,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:28:28,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:28:28,065 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 656 out of 698 [2022-11-02 20:28:28,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 631 places, 649 transitions, 1308 flow. Second operand has 3 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 0 states have call successors, (0), 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 20:28:28,068 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:28:28,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 656 of 698 [2022-11-02 20:28:28,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:28:29,070 INFO L130 PetriNetUnfolder]: 286/2975 cut-off events. [2022-11-02 20:28:29,070 INFO L131 PetriNetUnfolder]: For 15/20 co-relation queries the response was YES. [2022-11-02 20:28:29,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3324 conditions, 2975 events. 286/2975 cut-off events. For 15/20 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 24745 event pairs, 132 based on Foata normal form. 0/2374 useless extension candidates. Maximal degree in co-relation 3270. Up to 286 conditions per place. [2022-11-02 20:28:29,151 INFO L137 encePairwiseOnDemand]: 695/698 looper letters, 24 selfloop transitions, 2 changer transitions 0/648 dead transitions. [2022-11-02 20:28:29,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 632 places, 648 transitions, 1358 flow [2022-11-02 20:28:29,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:28:29,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:28:29,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1995 transitions. [2022-11-02 20:28:29,157 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9527220630372493 [2022-11-02 20:28:29,158 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1995 transitions. [2022-11-02 20:28:29,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1995 transitions. [2022-11-02 20:28:29,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:28:29,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1995 transitions. [2022-11-02 20:28:29,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 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 20:28:29,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 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 20:28:29,178 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 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 20:28:29,179 INFO L175 Difference]: Start difference. First operand has 631 places, 649 transitions, 1308 flow. Second operand 3 states and 1995 transitions. [2022-11-02 20:28:29,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 632 places, 648 transitions, 1358 flow [2022-11-02 20:28:29,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 630 places, 648 transitions, 1354 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:28:29,198 INFO L231 Difference]: Finished difference. Result has 630 places, 648 transitions, 1306 flow [2022-11-02 20:28:29,205 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=1302, PETRI_DIFFERENCE_MINUEND_PLACES=628, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=648, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1306, PETRI_PLACES=630, PETRI_TRANSITIONS=648} [2022-11-02 20:28:29,207 INFO L287 CegarLoopForPetriNet]: 645 programPoint places, -15 predicate places. [2022-11-02 20:28:29,207 INFO L495 AbstractCegarLoop]: Abstraction has has 630 places, 648 transitions, 1306 flow [2022-11-02 20:28:29,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 0 states have call successors, (0), 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 20:28:29,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:28:29,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:28:29,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:28:29,210 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-02 20:28:29,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:29,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1824422713, now seen corresponding path program 1 times [2022-11-02 20:28:29,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:28:29,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576723942] [2022-11-02 20:28:29,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:29,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:28:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:29,331 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 20:28:29,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:29,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576723942] [2022-11-02 20:28:29,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576723942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:29,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:29,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:28:29,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989667105] [2022-11-02 20:28:29,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:29,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:28:29,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:29,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:28:29,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:28:29,338 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 656 out of 698 [2022-11-02 20:28:29,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 630 places, 648 transitions, 1306 flow. Second operand has 3 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 0 states have call successors, (0), 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 20:28:29,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:28:29,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 656 of 698 [2022-11-02 20:28:29,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:28:30,117 INFO L130 PetriNetUnfolder]: 177/2075 cut-off events. [2022-11-02 20:28:30,117 INFO L131 PetriNetUnfolder]: For 22/25 co-relation queries the response was YES. [2022-11-02 20:28:30,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2270 conditions, 2075 events. 177/2075 cut-off events. For 22/25 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 14502 event pairs, 60 based on Foata normal form. 0/1669 useless extension candidates. Maximal degree in co-relation 2209. Up to 174 conditions per place. [2022-11-02 20:28:30,206 INFO L137 encePairwiseOnDemand]: 695/698 looper letters, 24 selfloop transitions, 2 changer transitions 0/647 dead transitions. [2022-11-02 20:28:30,207 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 647 transitions, 1356 flow [2022-11-02 20:28:30,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:28:30,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:28:30,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1995 transitions. [2022-11-02 20:28:30,212 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9527220630372493 [2022-11-02 20:28:30,213 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1995 transitions. [2022-11-02 20:28:30,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1995 transitions. [2022-11-02 20:28:30,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:28:30,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1995 transitions. [2022-11-02 20:28:30,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 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 20:28:30,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 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 20:28:30,228 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 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 20:28:30,228 INFO L175 Difference]: Start difference. First operand has 630 places, 648 transitions, 1306 flow. Second operand 3 states and 1995 transitions. [2022-11-02 20:28:30,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 647 transitions, 1356 flow [2022-11-02 20:28:30,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 629 places, 647 transitions, 1352 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:28:30,244 INFO L231 Difference]: Finished difference. Result has 629 places, 647 transitions, 1304 flow [2022-11-02 20:28:30,245 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=1300, PETRI_DIFFERENCE_MINUEND_PLACES=627, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=647, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=645, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1304, PETRI_PLACES=629, PETRI_TRANSITIONS=647} [2022-11-02 20:28:30,249 INFO L287 CegarLoopForPetriNet]: 645 programPoint places, -16 predicate places. [2022-11-02 20:28:30,250 INFO L495 AbstractCegarLoop]: Abstraction has has 629 places, 647 transitions, 1304 flow [2022-11-02 20:28:30,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 0 states have call successors, (0), 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 20:28:30,252 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:28:30,252 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] [2022-11-02 20:28:30,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:28:30,253 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-02 20:28:30,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:30,254 INFO L85 PathProgramCache]: Analyzing trace with hash -879803904, now seen corresponding path program 1 times [2022-11-02 20:28:30,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:28:30,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114716311] [2022-11-02 20:28:30,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:30,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:28:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:30,359 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 20:28:30,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:30,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114716311] [2022-11-02 20:28:30,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114716311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:30,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:30,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:28:30,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140260449] [2022-11-02 20:28:30,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:30,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:28:30,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:30,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:28:30,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:28:30,366 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 656 out of 698 [2022-11-02 20:28:30,369 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 647 transitions, 1304 flow. Second operand has 3 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 0 states have call successors, (0), 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 20:28:30,369 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:28:30,369 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 656 of 698 [2022-11-02 20:28:30,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:28:31,451 INFO L130 PetriNetUnfolder]: 300/2706 cut-off events. [2022-11-02 20:28:31,452 INFO L131 PetriNetUnfolder]: For 71/75 co-relation queries the response was YES. [2022-11-02 20:28:31,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3040 conditions, 2706 events. 300/2706 cut-off events. For 71/75 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 20886 event pairs, 132 based on Foata normal form. 0/2175 useless extension candidates. Maximal degree in co-relation 2972. Up to 319 conditions per place. [2022-11-02 20:28:31,595 INFO L137 encePairwiseOnDemand]: 695/698 looper letters, 24 selfloop transitions, 2 changer transitions 0/646 dead transitions. [2022-11-02 20:28:31,595 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 630 places, 646 transitions, 1354 flow [2022-11-02 20:28:31,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:28:31,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:28:31,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1995 transitions. [2022-11-02 20:28:31,602 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9527220630372493 [2022-11-02 20:28:31,602 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1995 transitions. [2022-11-02 20:28:31,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1995 transitions. [2022-11-02 20:28:31,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:28:31,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1995 transitions. [2022-11-02 20:28:31,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 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 20:28:31,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 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 20:28:31,621 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 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 20:28:31,621 INFO L175 Difference]: Start difference. First operand has 629 places, 647 transitions, 1304 flow. Second operand 3 states and 1995 transitions. [2022-11-02 20:28:31,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 630 places, 646 transitions, 1354 flow [2022-11-02 20:28:31,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 628 places, 646 transitions, 1350 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:28:31,640 INFO L231 Difference]: Finished difference. Result has 628 places, 646 transitions, 1302 flow [2022-11-02 20:28:31,641 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=1298, PETRI_DIFFERENCE_MINUEND_PLACES=626, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=646, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=644, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1302, PETRI_PLACES=628, PETRI_TRANSITIONS=646} [2022-11-02 20:28:31,642 INFO L287 CegarLoopForPetriNet]: 645 programPoint places, -17 predicate places. [2022-11-02 20:28:31,642 INFO L495 AbstractCegarLoop]: Abstraction has has 628 places, 646 transitions, 1302 flow [2022-11-02 20:28:31,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 0 states have call successors, (0), 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 20:28:31,645 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:28:31,645 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 20:28:31,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:28:31,646 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-02 20:28:31,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:31,646 INFO L85 PathProgramCache]: Analyzing trace with hash 279668667, now seen corresponding path program 1 times [2022-11-02 20:28:31,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:28:31,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117827450] [2022-11-02 20:28:31,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:31,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:28:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:31,704 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 20:28:31,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:31,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117827450] [2022-11-02 20:28:31,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117827450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:31,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:31,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:28:31,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521238720] [2022-11-02 20:28:31,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:31,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:28:31,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:31,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:28:31,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:28:31,711 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 698 [2022-11-02 20:28:31,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 628 places, 646 transitions, 1302 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:28:31,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:28:31,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 698 [2022-11-02 20:28:31,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:28:32,536 INFO L130 PetriNetUnfolder]: 193/2495 cut-off events. [2022-11-02 20:28:32,536 INFO L131 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-11-02 20:28:32,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2684 conditions, 2495 events. 193/2495 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 19378 event pairs, 64 based on Foata normal form. 0/2039 useless extension candidates. Maximal degree in co-relation 2608. Up to 151 conditions per place. [2022-11-02 20:28:32,605 INFO L137 encePairwiseOnDemand]: 692/698 looper letters, 17 selfloop transitions, 1 changer transitions 0/641 dead transitions. [2022-11-02 20:28:32,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 641 transitions, 1328 flow [2022-11-02 20:28:32,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:28:32,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:28:32,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2000 transitions. [2022-11-02 20:28:32,615 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9551098376313276 [2022-11-02 20:28:32,615 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2000 transitions. [2022-11-02 20:28:32,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2000 transitions. [2022-11-02 20:28:32,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:28:32,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2000 transitions. [2022-11-02 20:28:32,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 666.6666666666666) internal successors, (2000), 3 states have internal predecessors, (2000), 0 states have call successors, (0), 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 20:28:32,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 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 20:28:32,632 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 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 20:28:32,632 INFO L175 Difference]: Start difference. First operand has 628 places, 646 transitions, 1302 flow. Second operand 3 states and 2000 transitions. [2022-11-02 20:28:32,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 641 transitions, 1328 flow [2022-11-02 20:28:32,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 623 places, 641 transitions, 1324 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:28:32,652 INFO L231 Difference]: Finished difference. Result has 623 places, 641 transitions, 1290 flow [2022-11-02 20:28:32,654 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=1288, PETRI_DIFFERENCE_MINUEND_PLACES=621, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=641, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1290, PETRI_PLACES=623, PETRI_TRANSITIONS=641} [2022-11-02 20:28:32,655 INFO L287 CegarLoopForPetriNet]: 645 programPoint places, -22 predicate places. [2022-11-02 20:28:32,655 INFO L495 AbstractCegarLoop]: Abstraction has has 623 places, 641 transitions, 1290 flow [2022-11-02 20:28:32,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:28:32,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:28:32,657 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] [2022-11-02 20:28:32,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:28:32,658 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-02 20:28:32,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:32,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1247260069, now seen corresponding path program 1 times [2022-11-02 20:28:32,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:28:32,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905274878] [2022-11-02 20:28:32,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:32,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:28:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:32,821 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 20:28:32,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:32,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905274878] [2022-11-02 20:28:32,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905274878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:32,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:32,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:28:32,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975112394] [2022-11-02 20:28:32,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:32,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:28:32,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:32,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:28:32,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:28:32,831 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 698 [2022-11-02 20:28:32,835 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 623 places, 641 transitions, 1290 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:28:32,835 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:28:32,836 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 698 [2022-11-02 20:28:32,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:28:33,769 INFO L130 PetriNetUnfolder]: 296/2985 cut-off events. [2022-11-02 20:28:33,769 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-02 20:28:33,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3337 conditions, 2985 events. 296/2985 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 23409 event pairs, 132 based on Foata normal form. 0/2418 useless extension candidates. Maximal degree in co-relation 3262. Up to 290 conditions per place. [2022-11-02 20:28:33,863 INFO L137 encePairwiseOnDemand]: 695/698 looper letters, 21 selfloop transitions, 2 changer transitions 0/640 dead transitions. [2022-11-02 20:28:33,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 624 places, 640 transitions, 1334 flow [2022-11-02 20:28:33,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:28:33,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:28:33,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2001 transitions. [2022-11-02 20:28:33,869 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9555873925501432 [2022-11-02 20:28:33,870 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2001 transitions. [2022-11-02 20:28:33,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2001 transitions. [2022-11-02 20:28:33,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:28:33,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2001 transitions. [2022-11-02 20:28:33,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 667.0) internal successors, (2001), 3 states have internal predecessors, (2001), 0 states have call successors, (0), 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 20:28:33,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 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 20:28:33,883 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 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 20:28:33,883 INFO L175 Difference]: Start difference. First operand has 623 places, 641 transitions, 1290 flow. Second operand 3 states and 2001 transitions. [2022-11-02 20:28:33,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 624 places, 640 transitions, 1334 flow [2022-11-02 20:28:33,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 623 places, 640 transitions, 1333 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:28:33,898 INFO L231 Difference]: Finished difference. Result has 623 places, 640 transitions, 1291 flow [2022-11-02 20:28:33,900 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=1287, PETRI_DIFFERENCE_MINUEND_PLACES=621, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1291, PETRI_PLACES=623, PETRI_TRANSITIONS=640} [2022-11-02 20:28:33,901 INFO L287 CegarLoopForPetriNet]: 645 programPoint places, -22 predicate places. [2022-11-02 20:28:33,901 INFO L495 AbstractCegarLoop]: Abstraction has has 623 places, 640 transitions, 1291 flow [2022-11-02 20:28:33,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:28:33,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:28:33,902 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] [2022-11-02 20:28:33,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:28:33,903 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-02 20:28:33,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:33,904 INFO L85 PathProgramCache]: Analyzing trace with hash 766234768, now seen corresponding path program 1 times [2022-11-02 20:28:33,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:28:33,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591055515] [2022-11-02 20:28:33,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:33,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:28:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:34,623 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 20:28:34,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:34,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591055515] [2022-11-02 20:28:34,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591055515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:34,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:34,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:28:34,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272946099] [2022-11-02 20:28:34,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:34,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:28:34,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:34,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:28:34,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:28:34,633 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 536 out of 698 [2022-11-02 20:28:34,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 623 places, 640 transitions, 1291 flow. Second operand has 6 states, 6 states have (on average 537.8333333333334) internal successors, (3227), 6 states have internal predecessors, (3227), 0 states have call successors, (0), 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 20:28:34,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:28:34,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 536 of 698 [2022-11-02 20:28:34,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand